Séminaires et groupes de travail précédents

Séminaire de géométrie et topologie

9 mai 2025 == Kuan-Hui Lee, Univ. of California, Irvine
The stability of steady pluriclosed soliton
2 mai 2025 == François Nicoleau, Nantes
Global counterexamples to uniqueness for a Calderón problem with smooth conductivities
25 avril 2025 == Richard Melrose, MIT
Gluing and generalized products
11 avril 2025 == Mehdi Lejmi, CUNY
Balanced HKT metrics
4 avril 2025 == Yannick Sire, Johns Hopkins University
Harmonic maps between singular spaces
28 mars 2025 == Roberto Albesiano, Waterloo
From division to extension
14 mars 2025 == Xi Chen, Université de l’Alberta
Cuspidal curves on K3 surfaces
7 mars 2025, 10h == Behrouz Taji, UNSW Sidney
Boundedness results for families of non-canonically polarized varieties
21 février 2025 == Ana Balibanu, Louisiana State University
Transversal slices in quasi-Poisson manifolds
7 février 2025 == Katherine Goldman, McGill
Residual properties of 2-dimensional Artin groups
31 janvier 2025 == Jean Pierre Mutanguha, McGill
Canonically decomposing fibrations: 3-manifolds & groups
17 janvier 2025 == Patricia Sorya, UQAM
Borner les chirurgies de Dehn non caractérisantes non entières
10 janvier 2025 == Chung-Ming Pan, UQAM
Singular Gauduchon metrics and Hermite-Einstein problem on non-Kähler varieties
13 décembre 2024 == Olivier Martin, IMPA
Isotrivial Lagrangian fibrations of hyper-Kähler manifolds of K3^[n] and Kum_n type
6 décembre 2024 == Caleb Jonker, University of Toronto
Curvatures in generalized Kähler geometry
29 novembre 2024 == Panos Dimakis, University of Maryland
On a conjecture of Simpson
22 novembre 2024 == Kathryn Mann, Cornell
(bi)-Foliations of the plane and laminations of the circle
ANNULÉ- 15 novembre 2024 == Yannick Sire, Johns Hopkins
Geometric measure of nodal, critical and singular sets for solutions of degenerate equations
8 novembre 2024 == Bruno de Oliveira, Université de Miami
Chern numbers ratios of surfaces with big cotangent bundle
25 octobre 2024 == Freid Tong, University of Toronto
Complete Calabi-Yau metrics and optimal transport problems
18 octobre 2024 == Chris Kottke, New College of Florida
Geometric analysis on quasi-fibered boundary (QFB) manifolds
4 octobre 2024 == Julien Paupert, Arizona State University
Complex hyperbolic and projective deformations of Kleinian groups
27 septembre 2024 == Nathaniel Sagman, Université du Luxembourg
Labourie’s conjecture and Higgs bundles at high energy
13 septembre 2024 == Frédéric Rochon, UQAM
Warped quasi-asymptotically conical Calabi-Yau metrics
6 septembre 2024 == Anna Parlak, UC Davis
Faces of the Thurston norm ball dynamically represented by multiple distinct flows
10 mai 2024 == Kai Zheng, University of Chinese Academy of Sciences
Analysis of complex Monge Ampere equation near singularities
19 avril 2024 == Andras Stipsicz, Hungarian Academy of Sciences
Exotic four-manifolds with cyclic fundamental group
12 avril 2024 == Xuemiao Chen, Waterloo
On Vafa-Witten equations over Kaehler manifolds
5 avril 2024 == Federico Salmoiraghi, Queen's
Foliations, contact structures and Anosov flows in dimension 3
22 mars 2024 == Bin Guo, Rutgers
Geometric estimates in Kahler geometry
15 mars 2024 == Vamsi Pritham Pingali, Indian Institute of Science
Ampleness of vector bundles and canonical metrics (conférence par zoom): slides
16 février 2024 == Connor Sell, UQAM
Cusps of Arithmetic Hyperbolic Manifolds
9 février 2024 == Charles Cifarelli, UQAM
Steady gradient Kähler-Ricci solitons and Calabi-Yau metrics on Cⁿ
2 février 2024 == Chi Cheuk Tsang, UQAM
Motivations and progress on the Fried-Ghys conjecture
26 janvier 2024 == Ethan Ross, University of Toronto
Reduction of Polarizations
12 janvier 2024 == Benoit Charbonneau, Waterloo
Instantons symétriques
17 novembre 2023 == Joe Boninger, Boston College
Twisted knots and the perturbed Alexander invariant
10 novembre 2023 == Mike Wong, University of Ottawa
Knot Floer homology, barcodes, and primality
3 novembre 2023 == Eva Miranda, Universitat Politècnica de Catalunya
The Weinstein conjecture, 44 years later
27 octobre 2023, PK-5675 == Yann Rollin, Nantes
Moment maps in Symplectic geometry and applications to PL symplectic geometry
20 octobre 2023 == Abdellah Lahdili, UQAM
The Einstein-Hilbert functional in Kähler and Sasaki geometry: slides
13 octobre 2023 == Thomas Barthelmé, Queen's University
Group actions on bifoliated planes and classification of (pseudo)-Anosov flows in dimension 3
6 octobre 2023, 14h == Simone Gutt, Université Libre de Bruxelles
Around almost complex structures
6 octobre 2023 == Claude LeBrun, Stony Brook
Gravitational Instantons, Weyl Curvature, and Conformally Kahler Geometry
29 septembre 2023 == Tian-Jun Li, University of Minnesota
22 septembre 2023 == Masafumi Hattori, University of Kyoto
K-stability of CY fibrations over curves: notes
15 septembre 2023 == Daniel Litt, Université de Toronto
Hodge theory, braid groups, and some questions about 2x2 matrices
2 septembre 2022, PK-5675 == Eric Finster, University of Birmingham
Homotopy Theory and Constructive Mathematics - conférence
23 septembre, 2022 == Ruiran Sun, CIRGET
On slope and valuative K-semistability for big and nef birational divisors
30 septembre 2022, PK-5675 == Mathieu Anel, Carnegie Mellon University
Introduction to non-separated topology
7 octobre 2022 == Ronan Conlon, University of Texas at Dallas
Shrinking Kahler-Ricci solitons - conférence
14 octobre 2022 == Carlo Scarpa, CIRGET
Scalar curvature and deformations of complex structures
21 octobre 2022 == Georg Biedermann, Universidad del Norte
Calculus in homotopy theory
28 octobre 2022 == Clara Aldana, Universidad del Norte
Polyakov Formulas for conical singularities in two dimensions - conférence
4 novembre 2022 == Manh Tien Nguyen, Oxford
Monotonicity theorems and how to compare them
11 novembre 2022 == Takahiro Aoi, Abuno High School
A conical approximation of constant scalar curvature Kähler metrics
of Poincaré type and log K-semistability - slides
18 novembre 2022 == Victor Kalvin, Concordia et Collège Dawson
Determinants of Laplacians on compact surfaces with
conical singularities - conférence
25 novembre 2022 == Marcin Sroka, CIRGET
Monge-Ampere equation in hypercomplex geometry - conférence
9 décembre, 2022 == Sarah Collins, Georgia Tech
Homology cobordism and knot concordance - conférence
16 décembre, 2022 == Paula Truöl, ETH Zurich
Strongly quasipositive knots are concordant to infinitely many strongly quasipositive knots - conférence
20 janvier 2023 == Yueqiao Wu, University of Michigan
A non-Archimedean characterization of local K-stability
27 janvier 2023 == Shih-Kai Chiu, Oxford
Calabi-Yau manifolds with maximal volume growth
3 février 2023 == Nick McCleerey, University of Michigan
Geodesic Rays in the Donaldson-Uhlenbeck-Yau Theorem
*ANNULÉ* 10 février 2023 == Maxime Fortier Bourque, Université de Montréal
The systole of hyperbolic surfaces
17 février 2023 == Maxime Fortier Bourque, Université de Montréal
The systole of hyperbolic surfaces
24 février 2023 == Nathan Grieve, Carleton University /
Collège militaire royal / UQAM
On Harder-Narasimhan data and the Central Limit Theorem
10 mars 2023 == Maxence Mayrand, Université de Sherbrooke
Hyperkähler metrics via deformation theory
17 mars 2023 == Panagiotis Dimakis, Stanford
BAA branes on the Hitchin moduli space from solutions to the extended Bogomolny equations
24 mars 2023 == Tristan Ozuch, MIT
4-dimensional specific aspects of Ricci flows - slides
31 mars 2023 == Mihai Paun, Bayreuth
Infinitesimal extension of pluricanonical forms and injectivity
14 avril 2023 == Fraser Binns, Boston College
Almost L-space knots
21 avril 2023, 10h == Emily Cliff, Université de Sherbrooke
Smooth 2-groups and their principal bundles
21 avril 2023 == Alejandro Adem, CRSNG
Minimal Euler Characteristics for Even-Dimensional Manifolds with Finite Fundamental Group
28 avril 2023, PK-5675 == Xiaojun Wu, Bayreuth
Compact Kähler threefold with nef anticanonical line bundle - slides
5 mai 2023 == Yoshinori Hashimoto, Osaka Metropolitan Univ
Uniform Hörmander estimates for flat nontrivial line bundles
12 mai 2023 == Simon Jubert, UQAM
Yau-Tian-Donaldson correspondence on a class of toric fibrations
17 septembre 2021 == Alix Deruelle, Sorbonne Université
A relative entropy for expanders of the Ricci flow (joint work with Felix Schulze, Warwick University) - slides
24 septembre 2021 == Xuwen Zhu, Northeastern University
Constant curvature conical metrics - slides et conférence
1 octobre 2021 == Alberto Cavallo, UQAM, PK-5115
Slice links and smooth 4-manifolds
8 octobre 2021 == Michael Albanese, UQAM, PK-5675
The Yamabe Invariant of Complex Surfaces
15 octobre 2021 == Peter Feller, ETH Zurich
Braids, quasimorphisms, and slice-Bennequin inequalities - slides et conférence
22 octobre 2021 == Yang Li, MIT
Metric SYZ conjecture - slides et conférence
29 octobre 2021 == Marco Golla, Nantes
3-manifolds that bound no definite 4-manifold - conférence
5 novembre 2021 à 11h30 == Sucharit Sarkar, UCLA
Mixed invariants in Khovanov homology for unorientable cobordisms - conférence
12 novembre 2021 == Ruadhai Dervan, Cambridge
Stability conditions for polarised varieties - conférence
19 novembre 2021 == Ya Deng, Université de Lorraine
Big Picard theorem for varieties admitting nilpotent harmonic bundles - conférence
26 novembre 2021 == Gilles Carron, Université de Nantes
Kato's Limits - slides et conférence
3 décembre 2021 == Steven Sivek, Imperial College
Small Dehn surgery and SU(2) - conférence
10 décembre 2021 == Nathan Grieve, RMC, Carleton
On topics that surround the Cone Theorem, K-stability and Diophantine Arithmetic Geometry - conférence
17 décembre 2021 == Adam Jacob, UC Davis
Special Lagrangian torus fibrations on Del Pezzo and Rational Elliptic Surfaces - conférence
14 janvier 2022 == Ethan Addison, University of Notre Dame
Generalizing Poincaré-Type Kähler Metrics - slides
21 janvier 2022 == Francesco Lin, Columbia
Closed geodesics and Frøyshov invariants of hyperbolic three-manifolds - conférence
28 janvier 2022 == Xi Sisi Shen, Columbia
A Chern-Calabi flow on Hermitian Manifolds - slides et conférence
4 février 2022 == Michael Albanese, UQAM, PK-5115
Spin^h and further generalisations of spin
11 février 2022 == Kyle Hayden, Columbia
Where are the complex curves in Khovanov homology? - conférence
18 février 2022 == Ruiran Sun, CIRGET
Algebraicity of holomorphic maps to varieties with big representation of $\pi_1$
25 février 2022 == Jacob Caudell, Boston College
Lens space surgeries, lattices, and the Poincaré homology sphere - conférence
11 mars 2022 == Louis Ioos, Max Planck
Quantization methods in the Yau-Tian-Donaldson program - slides et conférence
18 mars 2022 == Dennis The, UiT The Arctic University of Norway, PK-5115
Simply-transitive CR real hypersurfaces in $C^3$
25 mars 2022 == Tyrone Ghaswala, UQAM, PK-5115
Small covers of big surfaces
1 avril 2022 == Alan Reid, Rice University
Embedding and bounding geometrically rational homology 3-spheres - conférence
8 avril 2022 == Allison Moore, Virginia Commonwealth
Cosmetic surgery, cosmetic crossings - conférence
22 avril 2022 == Alexandre Girouard, Laval, PK-5675
Steklov eigenvalues, homogenization and free boundary minimal surfaces
29 avril 2022 == Jean-Philippe Burelle, Sherbrooke, PK-5675
Piecewise circular curves and flag positivity - conférence
6 mai 2022 == Joel Kamnitzer, Toronto, PK-5675
Symplectic duality and affine Grassmannian slices - conférence
27 mai 2022 == Aldo Witte, KU Leuven, PK-5675
Singular fibrations in toric and Poisson geometry - conférence
14 mai 2021 == Ziwen Zhu, Peking University
Equivariant K-stability and valuative criteria - slides et conférence
7 mai 2021 == Tye Lidman, North Carolina State University
SU(2) representations for toroidal homology spheres - conférence
30 avril 2021 == Wenhao Ou, Chinese Academy of Science
Variétés projectives dont le fibré tangent contient certaine positivité - slides et conférence
23 avril 2021 == Johnny Nicholson, University College London
Projective modules and exotic group presentations - conférence
9 avril 2021 == Marco Marengon, Max Planck Institute for Mathematics
Relative genus bounds in indefinite 4-manifolds - conférence
26 mars 2021 == Antonio Alfieri, UBC
Symmetric knots and Floer homologies - conférence
19 mars 2021 == Philipp Naumann, Universität Bayreuth
Curvature formula for direct images of relative canonical bundles with a Poincaré type twist - slides et conférence
12 mars 2021 == Anthony Conway, MIT
Knotted surfaces with infinite cyclic knot group - conférence
26 février 2021 == Chris Kottke, New College of Florida
Bigerbes and applications - slides et conférence
19 février 2021 == Michael Hallam, Oxford
Stability of fibrations through geodesic analysis - slides et conférence
12 février 2021 == Allison Miller, Rice University
Amphichiral knots with large 4-genera - conférence
5 février 2021 == Simone Diverio, Sapienza, Università di Roma
Pointwise universal Gysin formulae and positivity of some characteristic forms - conférence
29 janvier 2021 == Tarik Aougab, Haverford College
Statistics for random curves on surfaces - conférence
22 janvier 2021 == Yohan Brunebarbe, Université de Bordeaux
Higher-dimensional Arakelov inequalities and applications to hyperbolicity - conférence
15 janvier 2021 == Mario Garcia-Fernandez, ICMAT, Madrid
Gravitating vortices with positive curvature - slides et conférence
11 décembre 2020 == Matei Toma, Nancy
Boundedness for sets of coherent analytic sheaves - conférence
27 novembre 2020 == Mykola Matviichuk, Université de Toronto
A local Torelli theorem for log symplectic manifolds - conférence
20 novembre 2020 == Neil Hoffman, Oklahoma State University
Conjectures related to knot complement commensurability - conférence
13 novembre 2020 == Michelle Chu, University of Illinois, Chicago
Prescribed virtual torsion in the homology of 3-manifolds- conférence (partie 1) et conférence (partie 2)
6 novembre 2020 == Phillip Griffiths, IAS, University of Miami
Some geometric applications of Hodge theory - slides et conférence
30 octobre 2020 == Hugues Auvray, Paris, Orsay
Noyaux de Bergman sur les surfaces de Riemann épointées - slides et conférence
23 octobre 2020 == Aru Ray, MPIM, Bonn
Embedding surfaces in 4-manifoldsr - conférence
16 octobre 2020 == Yi Ni, CalTech
Seifert fibered surgeries on hyperbolic fibered knots - conférence
9 octobre 2020 == Christina Tonnesen-Friedman, Union College
Sasaki-Einstein metrics and the Iterated join - slides et conférence
2 octobre 2020 == Junyan Cao, Université de Nice
On the Ohsawa-Takegoshi extension theorem - conférence
25 septembre 2020 == Jonathan Johnson, University of Texas at Austin
Bi-Orderability and Pretzel Knots - conférence
18 septembre 2020 ==Carlo Scarpa, SISSA
The Hitchin-cscK system - slides et conférence
11 septembre 2020 == Andrew Lobb, University of Durham
The rectangular peg problem
24 juillet 2020 == Livio Liechti, Université de Fribourg
Divide knots of maximal genus defect - slides et conférence
17 juillet 2020 == Joshua Howie, UC Davis
Alternating genera of torus knots - conférence
10 juillet 2020 == Gabriele Mondello, Università di Roma, La Sapienza
On spherical surfaces of genus 1 with 1 conical point - slides
3 juillet 2020 == Nicolina Istrati, Tel Aviv University
Variational problems in conformal geometry - slides et conférence
26 juin 2020 == Martin Bobb, UT Austin
Decomposition along flats for convex projective manifolds - conférence
19 juin 2020 == Vaibhav Gadre, University of Glasgow
Statistical hyperbolicity of Teichmuller spaces - slides et conférence
12 juin 2020 == Eiji Inoue, Tokyo
mu-cscK metrics and muK-stability of polarized manifolds - slides et conférence
5 juin 2020 == Ben Weinkove, Northwestern
The Chern-Ricci flow - slides et conférence
29 mai 2020 == Lukas Lewark, Regensberg
Squeezed knots - slides et conférence
22 mai 2020 == Patrick Orson, Boston College
Topologically embedding spheres in knot traces
15 mai 2020 == Ekatarina Amerik, Paris Sud et HSE Moscou
Around the cone conjecture for hyperkähler manifolds - slides
8 mai 2020 == Henri Guenancia, CNRS, Toulouse
Families of singular Kähler-Einstein metrics - slides
6 mars 2020 == Clayton McDonald, Boston College
Doubly slice odd pretzel knots
21 février 2020 == Artour Tomberg, University of Western Ontario
Vector bundles on twistor spaces of hyperkähler manifolds
14 février 2020 == Joel Kamnitzer, University of Toronto
Symplectic duality and the Hikita Conjecture
7 février 2020, 10h00 == Gavin Ball, CIRGET, UQAM
Closed G2-structures inducing a conformally flat metric
31 janvier 2020 == Michael Albanese, CIRGET, UQAM
Almost Complex Structures on Rational Homology Spheres
24 janvier 2020 == Michael Lipnowski, McGill
The Seiberg-Witten equations and the length spectrum of hyperbolic three-manifolds
17 janvier 2020 == Tyrone Ghaswala, CIRGET, UQAM
Infinite-type surfaces and the arcs that survive
6 décembre 2019 == Lars Sektnan, Aarhus University
Optimal symplectic connections on holomorphic submersions
29 novembre 2019 == Thomas Hockenhull, University of Glasgow
Koszul duality and Knot Floer homology
22 novembre 2019, 10h00 == Ahmad Issa, UBC
Embedding Seifert fibered spaces in the 4-sphere
22 novembre 2019 == Sungmo Kang, University of Texas at Austin
Hyperbolic primitive/Seifert knots in the 3-sphere
8 novembre 2019 == Andrei Moroianu, Paris 11
Espaces homogènes faiblement complexes
1 novembre 2019 == Kenji Fukaya, Kyoto University
Virtual fundamental chain and its application
18 octobre 2019 == Fei Hu, Waterloo
Dynamical degrees of self-maps on abelian varieties
11 octobre 2019 == Maxence Mayrand, University of Toronto
Symplectic reduction, GIT quotients, and Nahm's equations
4 octobre 2019, 10h00 ==Kang Zuo, Mainz
A p-adic characterization of modular curves
4 octobre 2019 == Georges Dloussky, Marseille
Positive (1,1) currents on some non-Kähler compact complex surfaces
27 septembre 2019 == Gerard Freixas, Institut de mathématiques de Jussieu
On the BCOV invariant of Calabi-Yau manifolds
20 septembre 2019 à 10h00 == Michael Brandenbursky, Ben-Gurion University
Fragmentation norm and relative quasimorphisms
20 septembre 2019 == Jen Hom, Georgia Tech
More concordance homomorphisms from knot Floer homology
13 septembre 2019 == Artem Kotelskiy, Indiana University
Immersed curves in Khovanov homology
13 septembre 10h00 == Linh Truong, Institute for Advanced Study
An infinite rank summand of the homology cobordism group
11 septembre 2019 == Brendan Owens, University of Glasgow
Embeddings of rational balls
9 septembre 2019 == Mike Willis, UCLA
Defining Khovanov homology and Rasumussen's invariant in #^r(S¹ x S²)
6 septembre 2019 == David Calderbank, Bath
GL2 geometries and quaternionic manifolds with symmetry
6 septembre 2019 à 10h00 == Ian Zemke, Princeton
Ribbon concordances and knot Floer homology
23 août 2019 == Shu-Cheng Chang, National Taiwan University
Yau's Uniformization Conjecture in Sasakian Manifolds
10 mai 2019 == Xi Chen, University of Alberta
Rational curves on K3 surfaces
3 mai 2019 == Fangyang Zheng, Ohio State
Strominger connection and pluriclosed metrics
26 avril 2019 == Carlo Gasbarri, Strasbourg
Transcendental Liouville inequality and rational points on disks
12 avril 2019 == Peter Feller, ETH
Moebius bands in B³xS¹ and the square peg problem
29 mars 2019 == Eric Bahuaud, Seattle University
Ricci flow of asymptotically hyperbolic metrics
22 mars 2019 == Liangming Shen, CIRGET
The Kahler-Ricci flow with log canonical singularities
15 mars 2019 == Brent Pym, McGill
Multiple zeta values in deformation quantization
22 février 2019 == Jonah Gaster, McGill
Computing discrete harmonic maps between hyperbolic surfaces
15 février 2019, 10h00 == Brett Kotschwar, Arizona State University
The determination of a shrinking Ricci soliton from its geometry at infinity
15 février 2019 == Éveline Legendre, Toulouse
L’invariant de Futaki et la fonctionnelle d’Einstein-Hilbert
mercredi, 6 février 2019, 11h00 == Kiumars Kaveh, University of Pittsburgh
Convexity in algebraic geometry and symplectic geometry
25 janvier 2019 == Cyril Lecuire, Toulouse
Représentations kleiniennes
18 janvier 2019 == Duncan McCoy, UT Austin
Dehn surgery on knots in S³
mercredi, 16 janvier 2019, 11h00 == Julien Keller, Marseille
Quantification géométrique et applications à différents problèmes de géométrie complexe
11 janvier 2019 == Baptiste Chantraine, Nantes
Sous-variétés lagrangiennes des variétés de Weinstein
11 janvier 2019, 10h00 == Christine Guenther, Pacific University
Convergence Stability of the Ricci Flow
14 décembre 2018 == Frédéric Campana, Université de Lorraine, Nancy
Criterion for algebraicity of foliations, applications
7 décembre 2018 == Eric Woolgar, University of Alberta
Conditions of curvature-dimension type in relativity and Lorentzian geometry
7 décembre 2018, 10h00 == Marcin Sabok, McGill University
Circle squaring and actions of Zⁿ
30 novembre 2018 == Charles Doran, University of Alberta
Classification and Applications of K3 Surface Fibered Calabi-Yau Threefolds
16 novembre 2018 == Joey van der leer Duran, University of Toronto
Hodge decompositions for Lie algebroids on manifolds with boundary
9 novembre 2018 == Daniel Alvarez-Gavela, IAS Princeton, The multi-parametric Reidemeister theorem and higher homotopy
groups of the space of Legendrian knots in the standard contact 3-space
2 novembre 2018 == Curtis Porter, North Carolina State
Nondegeneracy in CR Geometry
12 octobre 2018 == Georges Dloussky, Université Aix-Marseille
How to prove the GSS conjecture?
5 octobre 2018 == Dmitry Faifman, Université de Montréal
Lipschitz-Killing curvatures in pseudo-Riemannian and contact manifolds
28 septembre 2018 == Jeffrey Streets, University of California, Irvine
Pluriclosed flow and geometrization of complex surfaces
27 septembre 2018 == Casey Lynn Kelleher, Princeton
Symplectic curvature flow revisited

Séminaire CIRGET Junior

9 avril 2025 == Giovanny Soto, UQAM
Special metrics on toric manifolds arising from moment polytopes
26 mars 2025, 17h == Benabida Abdou Oussama, UQAM
Asymptotics for resolutions and smoothings of Calabi-Yau conifolds
19 février 2025, 17h == Denis Vinokurov, Université de Montréal
Searching for Equivariant Harmonic Maps That Maximize Laplacian Eigenvalues on the Sphere
12 février 2025 == Giacomo Bascape, UQAM
Square and/or Rectangle PEG Problem
29 janvier 2025 == Alexis Leroux-Lapierre, McGill
Comparing two biperfect bases using category O
15 janvier 2025 == Ruiran Sun, University of Toronto
An introduction to Shafarevich’s conjecture
26 novembre 2024 == Emanuele Ronda, UQAM
Vanishing Theorems and application to positivity in Algebraic Geometry
5 novembre 2024 == Habib Alizadeh, Université de Montréal
A few topics in Symplectic Geometry
29 octobre 2024 == Zakaria Baammi, Université de Montréal
La chirurgie de Fintushel Stern sur une variété de dimension 4 le long d’un nœud K
22 octobre 2024 == Bart Syroka, McGill
Balanced metrics on 6-manifolds of cohomogeneity one
8 octobre 2024 == Giacomo Bascape, UQAM
3-manifolds and SU(2)-representations
1 octobre 2024 == Xia Xiao, UQAM
Canonical metrics (e.g., constant scalar curvature Kähler metrics) on Riemann surfaces
3 octobre 2022 == Houari Benammar, UQAM
Ruled Surface
17 octobre 2022 == Patricia Sorya, UQAM
Dehn surgery characterization of satellite knots
7 février 2023 == Federico Trinca, Oxford
On the stability of minimal submanifolds in conformal spheres
14 février 2023 == Alex Manchester, Rice University
Satellite Operators and (n)-solvability
21 février 2023 == Keith Mills, University of Maryland
Almost Complex Manifolds and Homotopy Projective Spaces
28 février 2023 == Arno Wildi, Institut für Mathematik Universität Zürich
Categorification, a very general idea in mathematics
7 mars 2023 == Bangxin Wang, Institut für Mathematik Universität Zürich
An introduction to quantum topology
21 mars 2023 == Pietro Capovilla, Scuola normale di Pisa
Amenable covers and simplicial volume
28 mars 2023 == Kai Joel Smith, Indiana University
Character Varieties of Tangles and Singular Instanton Homology
4 avril 2023 == Alessio Di Prisa, Scuola Normale di Pisa
Equivariant concordance of strongly invertible knots
11 avril 2023 == Laura Wakelin, Imperial College
The Dehn surgery characterisation of Whitehead doubles
18 avril 2023 == Fraser Binns, Boston College
(1,1) (almost) L-space knots
16 mars 2022 == Paul Cusson, McGill University
Classifying vector bundle filtrations with infinite flag manifolds and other problems
ANNULÉ- 23 mars 2022 == Paul Cusson, McGill University
Classifying vector bundle filtrations with infinite flag manifolds and other problems II
30 mars 20225 == Lydia Mezrag, Université de Montréal
K-theory and Hamiltonian fibrations
6 avril 2022 == Chenxi Yi, UQAM
Introduction to the Yau-Tian-Donaldson Conjecture
13 avril 2022 == Ludovic D'Anjou Madoré, UQAM
Categorical Logic, Topos Theory and Applications
27 avril 2022 == Benabida Oussama, UQAM
Convergence of the Krylov Bogolyubov procedure in Bowen's example
18 mai 2022 == Ruiran Sun, McGill
Variation of Hodge structures on curves and Fujita decomposition
25 mai 2022 == Giacomo Bascapé, UQAM
SU(2) representation of triangles group
8 mars 2021 == Damien Tageddine, McGill
Noncommutative differential geometry of matrix algebras
15 février 2021 == Haouri Benammar, UQAM
Grothendiek group
1 février 2021 == Erfan Nazari, McGill
Poisson manifolds of compact types
25 novembre 2020 == Michael Albanese, UQAM
Almost Complex vs. Complex
21 octobre 2020 == Aidan Lindberg, McGill
Hodge Structures in Poisson and Noncommutative Geometry
14 octobre 2020 == Quentin Karegar, Unidad Cuernavaca Instituto de Matemáticas
A groupoid approach to orbifolds
7 octobre 2020 == Bart Syroka, McGill
Quasi-local Mass in Spacetimes
30 septembre 2020 == Carlos Valero, McGill
An Introduction to the Calderon Problem
23 septembre 2020 == Dominique Rathel-Fournier, Université de Montréal
From curves on surfaces to Lagrangian topology
16 septembre 2020 == Simon Jubert, UQAM
A Yau-Tian-Donaldson correspondence on toric Kahler manifolds

Séminaire de la théorie géométrique des groupes

9 avril 2025 == Othmane Oukrid, McGill University
Odd Moebius—Kantor Ring Puzzles
2 avril 2025 == Arya Vadnere, University at Buffalo
Gromov boundary of the Grand Arc Graph
26 mars 2025 == Nicholas Touikan, University of New Brunswick
On the conjugacy separability of mapping tori of polynomially growing free group automorphisms
19 mars 2025 == Sam Fisher, University of Oxford
Virtually free-by-cyclic RFRS groups
12 mars 2025 == Aranka Hrušková, Weizmann Institute of Science
Asymptotically commuting measures share the Furstenberg-Poisson boundary
5 mars 2025 == Dani Wise, McGill
A survey on the Kervaire-Laudenbach conjecture
26 février 2025 == Piotr Przytycki, McGill
A pair of Garside shadows
19 février 2025 == Chris Karpinski, McGill
Hyperfiniteness of boundary actions of graphical small cancellation groups
12 février 2025 == Olga Kharlampovich, CUNY, Grad Center and Hunter College
Effective Generalization of Hall’s Theorem for Limit Groups and Cube Complexes
5 février 2025 == Christophe Hohlweg, UQAM
Shi arrangements in Coxeter groups
29 janvier 2025 == Koichi Oyakawa, Vanderbilt University
Geometry and dynamics of the extension graph of graph product of groups
22 janvier 2025 == Antoine Poulin, McGill
Measure equivalence of Baumslag-Solitar groups & type III relations
15 janvier 2025 == Maninder Dhanauta, McGill
Virtual cactus group is virtually special compact
27 novembre 2024 == William Chong, McGill
Embedding Partial HNN Extensions in Ascending HNN Extensions
20 novembre 2024 == Bratati Som, University at Buffalo-SUNY
Acylindrical actions on trees and applications to the outer automorphism group of Baumslag-Solitar groups
13 novembre 2024 == Daniel Wise, McGill
A small contribution to the Kervaire conjecture
6 novembre 2024 == Paige Hillen, UC Santa Barbara
Latent symmetry of graphs and stretch factors in Out(Fn)
31 octobre 2024 == Catherine Pfaff, Institute for Advanced Study & Queen’s University
Train track automata for outer automorphisms of free groups and geodesics in outer space
23 octobre 2024 == Amy Herron, University at Buffalo
Triangle Presentations in ~A₂ Bruhat-Tits Buildings
9 octobre 2024 == Bojun Zhao, UQAM
Reconstruction of Anosov flows from infinity
2 octobre 2024 == Katherine Goldman, McGill University
Curvature of Shephard groups
25 septembre 2024 == Jean Pierre Mutanguha, McGill University
The dynamics of free group endomorphisms
18 septembre 2024 == Changjie Chen, Université de Montréal
Morse functions on the moduli space of hyperbolic surfaces
11 septembre 2024 == Zachary Munro, Technion - Israel Institute of Technology
A Coarse Geometric Obstruction to Cubulation
10 avril 2024 == Merlin Medici, Universität Wien
Automorphism groups of cocompact CAT(0) cube complexes
27 mars 2024 == Indira Chatterji, Côte d'Azur University
The rapid decay property and graphs of groups
22 mars 2024 == Damian Osajda, University of Copenhagen
Locally elliptic actions and nonpositive curvature
20 mars 2024 == Nikolay Bogachev, University of Toronto
Commensurability classes and quasi-arithmeticity of hyperbolic reflection groups
13 mars 2024 == Annette Karrer, Ohio State University
Subgroups arising from connected components in the Morse boundary
28 février 2024 == Rylee Alanza Lyman, Rutgers University-Newark
When is the spine of Outer Space for a free product CAT(0)?
21 février 2024 == Sergey Norin, McGill
Brambles, stack number and topological overlap
14 février 2024 == Steven Boyer, UQAM
Stir-frying Homeo_+(S^1)-representations and the L-space conjecture
31 janvier 2024 == Rose Morris-Wright, Middlebury College
Geometric connections between Artin groups and Artin monoids
17 janvier 2024 == Antoine Poulin, McGill
The failure of cost in the measure-class preserving setting
29 novembre 2023 == Duncan McCoy, UQAM
Obstructing cusp types of arithmetic hyperbolic manifolds
22 novembre 2023 == Nima Hoda, McGill
Tree of graph boundaries of hyperbolic groups
8 novembre 2023 == Connor Sell, UQAM
Cusps of arithmetic hyperbolic manifolds
1 novembre 2023 == Piotr Przytycki, McGill
Trees, fixed-points and the Cremona group
25 octobre 2023 == Zachary Munro, McGill
Random Groups are not n-Cubulated
18 octobre 2023 == Ran Tao, CMU
Quasi-treeable CBERs are treeable via median graphs
13 septembre 2023 == Christopher Karpinski, McGill
A weak Tits alternative for groups acting on buildings
30 août 2023 == Kasia Jankiewicz, University of California, Santa Cruz
Centers of Artin groups
7 septembre 2022 == Annette Karrer, McGill
The boundary rigidity of lattices in products of trees
14 septembre 2022 == Sami Douba, IHES
A hyperbolic lattice in each dimension with Zariski-dense surface subgroups
21 septembre 2022 == Thomas Haettel, U. Montpellier
Group actions on injective metric spaces
28 septembre 2022 == Piotr Przytycki, McGill
Coxeter groups are biautomatic
5 octobre 2022 == Chris Karpinski, McGill
Hyperfiniteness of the Action of Relatively Hyperbolic
Groups on their Bowditch Boundary
19 octobre 2022 == Dani Wise, McGill
Magnus's Power Series Representation
26 octobre 2022 == William Chong, McGill
pi₁ Injection and Relative Hyperbolicity
2 novembre 2022 == Brahim Abdenbi, McGill
The Hrushovski property for compact special cube complexes
9 novembre 2022 == Zachary Munro, McGill
Strict C(6) Complexes
16 novembre 2022 == Konrad Wrobel, McGill
Measure equivalence and wreath product groups
*jeudi* 24 novembre 2022 == Jean-Pierre Mutanguha, IAS
Canonical forms for free group automorphisms
30 novembre 2022 == Duncan McCoy, UQAM
Seifert fibered surgeries
11 janvier 2023 == Harry Petyt, Oxford
Extracting hyperbolicity from CAT(0) geometry
18 janvier 2023 == Thomas Haettel, Montpellier
Garside Groups
25 janvier 2023 == Annette Karrer, McGill
From Stalling's Theorem to Morse boundaries
1 février 2023 == Max Chemtov, McGill
Nonpositive Towers in Contractible 3-Manifold Spines
8 février 2023 == Piotr Przytycki, McGill
Tits alternative for the 3-dimensional tame automorphism group
15 février 2023 == William Chong, McGill
Whitehead Graphs and Irreducible Half-clean HNN Extensions
22 février 2023 == Rémi Coulon, Rennes
Equations in periodic groups
22 mars 2023 == Sam Fischer, Oxford
Algebraic fibring and L²-Betti numbers
29 mars 2023 == Grigori Avramidi, Max Planck Institute
Homology growth, hyperbolization, and fibering.
15 septembre 2021 == Sami Douba, McGill University
Proper CAT(0) actions of unipotent-free linear groups
22 septembre 2021 == Zachary Munro, McGill University
Hyperbolic groups and geometric group theory
29 septembre 2021 == William Chong, McGill University
Small cancellation theory and word problems
6 octobre 2021 == Catherine Pfaff, Queen's University
A Brief (Hopefully Gentle) Introduction to Out(F_r),
Culler-Vogtmann Outer Space, & Out(F_r) Conjugacy Class Invariants
jeudi, 14 octobre 2021 == Michah Sageev, Technion - Israel Institute of Technology
Right angled Coxeter groups acting on CAT(0) cube complexes.
20 octobre 2021 == Daniel Wise, McGill
Complete Square Complexes
27 octobre 2021 == Daniel Wise, McGill
Complete Square Complexes II
3 novembre 2021 == William Chong, McGill
An uncountable family of finitely generated residually finite groups
10 novembre 2021 == Daniel Wise, McGill
Introductory level talk on residual finiteness
17 novembre 2021 == Tyrone Ghaswala, UQAM
Mapping class groups, coverings, braids and groupoids
24 novembre 2021 == Alex Lubotzky, Hebrew Univ / Weizmann Institute / IAS
The C³ problem: error-correcting codes with a constant rate, constant distance, and constant locality
1 décembre 2021 == Catherine Pfaff, Queen's University
Train (track)s, loops, & iteration. What does a typical element of Out(F_r) look like?
8 décembre 2021 == Thomas Koberda, University of Virginia
Hamiltonicity of graphs via right-angled Artin groups
9 février 2022 == Daniel Wise, McGill
Introductory level talk on residual finiteness continued
16 février 2022 == Sami Douba, McGill
Thin right-angled Coxeter subgroups of some arithmetic lattices
23 février 2022 == Daniel Wise, McGill
Introductory level talk on residual finiteness continued
9 mars 2022 == William Chong, McGill
One-relator Product of Cyclic Groups
16 mars 2022 == Daniel Wise, McGill
One-relator groups
23 mars 2022 == William Ghanem, McGill
CAT(0) Cube Complexes: The Dual Complex and Finiteness Properties
6 avril 2022 == Christopher Karpinski, McGill
The generalized conjugacy problem in hyperbolic and relatively hyperbolic groups
13 avril 2022 == Christopher Karpinski, McGill
The generalized conjugacy problem in hyperbolic and relatively hyperbolic groups II
15 septembre 2021 == Sami Douba, McGill University
Proper CAT(0) actions of unipotent-free linear groups
22 septembre 2021 == Zachary Munro, McGill University
Hyperbolic groups and geometric group theory
29 septembre 2021 == William Chong, McGill University
Small cancellation theory and word problems
6 octobre 2021 == Catherine Pfaff, Queen's University
A Brief (Hopefully Gentle) Introduction to Out(F_r),
Culler-Vogtmann Outer Space, & Out(F_r) Conjugacy Class Invariants
jeudi, 14 octobre 2021 == Michah Sageev, Technion - Israel Institute of Technology
Right angled Coxeter groups acting on CAT(0) cube complexes.
20 octobre 2021 == Daniel Wise, McGill
Complete Square Complexes
27 octobre 2021 == Daniel Wise, McGill
Complete Square Complexes II
3 novembre 2021 == William Chong, McGill
An uncountable family of finitely generated residually finite groups
10 novembre 2021 == Daniel Wise, McGill
Introductory level talk on residual finiteness
17 novembre 2021 == Tyrone Ghaswala, UQAM
Mapping class groups, coverings, braids and groupoids
24 novembre 2021 == Alex Lubotzky, Hebrew Univ / Weizmann Institute / IAS
The C³ problem: error-correcting codes with a constant rate, constant distance, and constant locality
1 décembre 2021 == Catherine Pfaff, Queen's University
Train (track)s, loops, & iteration. What does a typical element of Out(F_r) look like?
8 décembre 2021 == Thomas Koberda, University of Virginia
Hamiltonicity of graphs via right-angled Artin groups
9 février 2022 == Daniel Wise, McGill
Introductory level talk on residual finiteness continued
16 février 2022 == Sami Douba, McGill
Thin right-angled Coxeter subgroups of some arithmetic lattices
23 février 2022 == Daniel Wise, McGill
Introductory level talk on residual finiteness continued
9 mars 2022 == William Chong, McGill
One-relator Product of Cyclic Groups
16 mars 2022 == Daniel Wise, McGill
One-relator groups
23 mars 2022 == William Ghanem, McGill
CAT(0) Cube Complexes: The Dual Complex and Finiteness Properties
6 avril 2022 == Christopher Karpinski, McGill
The generalized conjugacy problem in hyperbolic and relatively hyperbolic groups
13 avril 2022 == Christopher Karpinski, McGill
The generalized conjugacy problem in hyperbolic and relatively hyperbolic groups II
7 avril 2021 == Joshua Frisch, California Institute of Technology
The ICC property in random walks and dynamics
31 mars 2021 == Steve Trettel, Stanford
Raymarching the Thurston geometries: visual intuition for geometric topology in 3 dimensions
24 mars 2021 == Eduardo Oregón-Reyes, UC Berkeley
Cubulated relatively hyperbolic groups and virtual specialness
17 mars 2021 == Sami Douba, McGill
Virtually unipotent elements of 3-manifold groups
10 mars 2021 == Carolyn Abbott, Columbia University
Random walks and quasiconvexity in acylindrically hyperbolic groups
24 février 2021 == Daniel Wise, McGill
Complete square complexes
17 février 2021 == Kevin Schreve, University of Chicago
Generalized Tits conjecture for Artin groups
10 février 2021 == Jingyin Huang, Ohio State University
Measure equivalence rigidity of 2-dimensional Artin groups of hyperbolic type
3 février 2021 == Anne Lonjou, University of Basel
Action of the Cremona group on a CAT(0) cube complex.
27 janvier 2021 == Jean-Philippe Burelle, Université de Sherbrooke
Local rigidity of diagonally embedded triangle groups
20 janvier 2021 == Anush Tserunyan, McGill University
The structure of hyperfinite subequivalence relations of treed equivalence relations
13 janvier 2021 == Florestan Brunck, McGill University
Iterated medial subdivision in surfaces of constant curvature and applications to
acute triangulations of hyperbolic and spherical simplicial complexes
2 décembre 2020 == Damian Orlef, IMPAN
Non-orderability of random triangular groups by using random 3CNF formulas
25 novembre 2020 == Mitul Islam, University of Michigan
Convex co-compact representations of 3-manifold groups
18 novembre 2020 == Piotr Przytycki, McGill University
Tail equivalence of unicorn paths
11 novembre 2020 == Zachary Munro, McGill University
Biautomaticity of 2-dimensional Coxeter groups
4 novembre 2020 == Kathryn Mann, Cornell University
Stability for hyperbolic groups acting on their boundaries
28 octobre 2020 == Ian Runnels, University of Virginia
RAAGs in MCGs
21 octobre 2020 == Asaf Hadari, University of Hawaii at Manoa
Mapping class groups that do not virtually surject to the integers
14 octobre 2020 == Thomas Haettel, Université de Montpellier
The coarse Helly property, hierarchical hyperbolicity, and semihyperbolicity
7 octobre 2020 == Robert Kropholler, WWU Münster
Groups of type FP₂ over fields
30 septembre 2020 == Duncan McCoy, UQAM
Characterizing slopes for torus knots and hyperbolic knots
23 septembre 2020 == Michael Lipnowski, McGill University
Algorithms for building grids
16 septembre 2020 == Mikołaj Frączyk, University of Chicago
Growth of mod-p homology in higher rank lattices
9 septembre 2020 == Sam Shepherd, University of Oxford
Quasi-isometric rigidity of generic cyclic HNN extensions of free groups
25 mars 2020 == Sami Douba, McGill
Finitely generated subgroups of compact Lie groups
18 mars 2020 == Merlione Incerti-Medici, Zurich
Topologies and metrics on the Morse boundary
11 mars 2020 == Ilya Kapovich, Hunter College of CUNY
Singularity properties of random free group automorphisms and of random trees in the boundary of Outer space
19 février 2020 == James Farre, Yale University
Hyperbolic volume and bounded cohomology
12 février 2020 == Michal Marcinkowski, IMPAN
Bounded cohomology of transformation groups
5 février 2020 == Tyrone Ghaswala, Université du Québec à Montréal
Promoting circular-orderability to left-orderability
29 janvier 2020 == Rylee Lyman, Tufts University
Train Tracks, Orbigraphs and CAT(0) Free-by-cyclic groups
22 janvier 2020 == Damian Osajda, University of Wroclaw
Helly groups
15 janvier 2020 == Dani Wise, McGill
Intro to word-hyperbolic groups
8 janvier 2020 == Abdalrazzaq Zalloum, Queen's University
Growth of stable subgroups in Morse-local-to-global groups
20 novembre 2019 == Dani Wise, McGill University
A vanishing result for the second L²-Betti number.
13 novembre 2019 == Elizabeth Fields, University of Illinois at Urbana-Champaign
Trees, dendrites, and the Cannon-Thurston map
6 novembre 2019 == Jens Harlander, Boise State University
Geometry and topology of labeled oriented trees.
30 octobre 2019 == Nima Hoda, École normale supérieure
Crystallographic Helly Groups
23 octobre 2019 == Kasia Jankiewicz, University of Chicago
Residual finiteness of three generator Artin groups
16 octobre 2019 == Heejoung Kim, University of Illinois at Urbana-Champaign
Algorithms detecting stability and Morseness for finitely generated groups
9 octobre 2019 == Rémi Coulon, Institut de recherche mathématique de Rennes
Twisted Patterson-Sullivan measure and applications to growth problems
2 octobre 2019 == Catherine Pfaff, Queen's University
Typical trees: an Out(F_r) excursion
25 septembre 2019 == Piotr Przytycki, McGill University
Tits alternative in dimension 2
18 septembre 2019 == Michael Brandenbursky, Ben-Gurion University
Entropy, metrics and quasi-morphisms
11 septembre 2019 == Daniel Woodhouse, University of Oxford
Action rigidity of free products of hyperbolic manifold groups
10 avril 2019 == Leonid Potyagailo, Université de Lille
Martin and Floyd boundaries of finitely generated groups
3 avril 2019 == Joshua Greene, Boston College
On loops intersecting at most once
27 mars 2019 == Steven Boyer, UQAM
Deforming foliations in branched covers and the L-space conjecture
20 mars 2019 == Alexandre Martin, Heriot-Watt University
The Tits alternative for two-dimensional Artin groups
13 mars 2019 == Piotr Przytycki, McGill University
Torsion groups do not act on 2-dimensional CAT(0) complexes
6 mars 2019 == Doron Puder, Tel Aviv University
Matrix integrals, graphs on surfaces, and mapping class group
27 février 2019 == Sami Douba, McGill University
2-Systems of arcs on spheres with prescribed endpoints
20 février 2019 == Hugh Thomas, UQAM
Parking functions via piecewise-linear transformations of R^m
6 février 2019 == Zachary Munro, McGill
Weak Modularity and Euclidean Buildings
30 janvier 2019 == Dani Wise, McGill
Bicollapsibility and groups with torsion
23 janvier 2019 == Michael Lipnowski, McGill
Geometry of the smallest 1-form Laplacian eigenvalue on hyperbolic manifolds
16 janvier 2019 == Nima Hoda, McGill
Constructing bisimplices
9 janvier 2019 == Jonah Gaster, McGill
Computing discrete harmonic maps between hyperbolic surfaces
12 décembre 2018 == Jacek Świątkowski, University of Wrocław)
Topological characterization of boundaries of free products of groups
jeudi, 6 décembre 2018, salle 920 == Jingyin Huang, Ohio State University
Quasi-isometric rigidity of 2-dimensional Artin groups
28 novembre 2018 == Matthew Haulmark, Vanderbilt University
Non-hyperbolic groups with Menger curve boundary
21 novembre 2018 == Tomasz Prytuła, Max Planck Institute
Classifying space for proper actions for groups admitting a strict fundamental domain
14 novembre 2018 == Valentina Disarlo, Heidelberg University
Cubical geometry in the polygonalization complex
7 novembre 2018 == Timothée Marquis, Université Catholique de Louvain
On geodesic ray bundles in buildings
31 octobre 2018 == Ilya Gekhtman, University of Toronto
Growth rates of invariant random subgroups in negative curvature
24 octobre 2018 == Marcin Sabok, McGill University
The Hrushovski property for hypertournaments and profinite topologies
17 octobre 2018 == Camille Horbez, Université Paris-Sud
Growth under automorphisms of hyperbolic groups
10 octobre 2018 == Macarena Covadonga Robles Arenas, McGill University
Measuring complexity of curves on surfaces
4 octobre 2018, 16h00 == Ruth Charney, Brandeis University
A geometric approach to Artin groups
3 octobre 2018 == Daniel Woodhouse, Technion
Revisiting Leighton’s graph covering theorem
26 septembre 2018 == Giulio Tiozzo, University of Toronto
Random walks and WPD actions
19 septembre 2018 == Florestan Brunck, McGill University
Non-Obtuse Dissection of Tetrahedra
12 septembre 2018 == Yann Pequignot, McGill University
An introduction to Borel chromatic numbers
5 septembre 2018 == Damian Osajda, University of Wrocław
Two-dimensional Artin groups and metric systolicity

Séminaire de géométrie algébrique

28 mai 2025 == Pavel Shlykov, Edinburgh
Quiver varieties in dimension four
7 mai 2025 == Sylvester Zhang, University of Minnesota
Affine Robinson-Schensted Correspondence and Affine Flag varieties
30 avril 2025 == Davood Nejaty, University of Melbourne
A topological mirror symmetry for pairs of commuting Higgs fields
26 mars 2025 == Jonathan Boretsky, McGill University
On two Notions of Flag Positivity
jeudi, 6 mars 2025 à 15h == Sándor Kovács, University of Washington
KSB stability is automatic in codimension 3
19 février 2025 == Ana Balibanu, Louisiana State University
An analogue of Whittaker reduction for group-valued moment maps
5 février 2025 == Rui Xiong, University of Ottawa
Chern classes of subvarieties over partial flag varieties
22 janvier 2025 == Vasily Krylov, Harvard University
From geometric realizations of affine Hecke algebras to character formulas
8 janvier 2025 == Joseph Helfer, Simons Center for Geometry and Physics
The integral Chow ring of the moduli stack of compact type curves of genus 2
11 décembre 2024 == Olivier Martin, IMPA
The Xiao conjecture for surfaces fibered by trigonal genus 5 curves
4 décembre 2024 == Marielle Ong, University of Toronto
Parabolic Multiplicative Affine Springer Fibers
20 novembre 2024 == Yu Li, University of Toronto
Polynomial integrable systems from cluster structures
6 novembre 2024 == Bruno de Oliveira, Université de Miami
Canonical singularities and surfaces with big cotangent bundle
30 octobre 2024 == Dennis Gaitsgory, Max Planck Institute
Algebro-geometric version of the Fargues-Scholze Bun_G
23 octobre 2024 == Leonid Rybnikov, Université de Montréal
Cactus flower curves, integrable systems, and crystals
9 octobre 2024 == Jenna Rajchgot, McMaster University
Determinants, Pfaffians, symmetric quivers, and symmetric varieties
25 septembre 2024 == Artem Kalmykov, McGill University
A tale of an R-matrix
11 septembre 2024 == Mike Roth, Queen’s University
r-point Seshadri constants and the solution to the symplectic packing problem for P¹ x P¹
4 septembre 2024 == Tudor Pădurariu, CNRS-Université Pierre et Marie Curie-Université Paris Diderot
Coherent sheaves on the commuting stack
10 avril 2024 == Thomas Brazelton, Harvard
Real planar curves - algebraic, geometric, and topological aspects
27 mars 2024 == Chenxi Yin, UQAM
Valuative invariants for spherical varieties and applications to K-stability
13 mars 2024 == Maxence Mayrand, Université de Sherbrooke
Shifted coisotropics and Moore-Tachikawa topological quantum field theories
28 février 2024 == Guillermo Gallego, Universidad Complutense de Madrid
Multiplicative Hitchin fibration and Langlands duality
14 février 2024 == Steven Lu, UQAM
Hyperkahler manifolds dominable by Cⁿ, Part II
31 janvier 2024 == Steven Lu, UQAM
Hyperkahler manifolds dominable by Cⁿ
17 janvier 2024 == Michael Groechenig, University of Toronto
Topological properties of the Frobenius-pullback for flat connections
13 décembre 2023 == Sam Payne, UT Austin
Tropical linear series and Kodaira dimensions of moduli spaces
29 novembre 2023 == Changho Han, University of Waterloo
Extending Torelli map from Smyth's alternative compactifications of the moduli of curves
15 novembre 2023 == Jake Levinson, Université de Montréal
Minimal fibering degrees and asymptotic degrees of irrationality
3 octobre 2023 == Dave Anderson, Ohio State University/CRM-Simons
Schubert polynomials, strong transversality, and equivariant positivity
20 septembre 2023 == Mykola Matviichuk, Imperial College London
Elliptic Log Symplectic Brackets on Projective Bundles
19 septembre 2023 == Karol Palka, Institute of Mathematics, Polish Academy of Sciences
Almost minimal models and applications
5 septembre 2023 == Kang Zao, Universität Mainz
On the rigidity and hyperbolicity of families of higher dimensional varieties
23 septembre 2022 == Ruxandra Moraru, University of Waterloo
Co-Higgs bundles on Poisson surfaces
7 octobre 2022 == Carl Mautner, UC Riverside
Perverse sheaves on symmetric products of the plane
21 octobre 2022 == Sam Payne, UT Austin
Cohomology of moduli spaces of curves
4 novembre 2022 == Ruiran Sun, McGill
One-pointed Shafarevich's conjecture for moduli spaces
of canonically polarized manifolds
18 novembre 2022 == Eric Boulter, Waterloo
Moduli Spaces of Sheaves on Kodaira Surfaces
13 janvier 2023 == Tony Pantev, University of Pennsylvania
Mirror symmetry, intersection of quadrics, and Hodge theory
27 janvier 2023 == Lucien Hennecart, University of Edinburgh
The BPS Lie algebra of 2-Calabi-Yau categories
10 février, 2023 == Soheil Memarian, University of Toronto
Hyperbolicity of Complex Ball Quotients
24 février 2023 == Nathan Grieve, Carleton University /
Collège militaire royal / UQAM
On convex bodies for linear systems and consequences for K-stability and arithmetic
10 mars 2023 == Jacques Hurtubise, McGill
Almost toric structures for moduli of bundles
24 mars 2023 == Ramtin Sasani, Concordia
Symplectic aspects of Gaudin integrable systems and Szegö kernel variational method
*10 mai 2023, 15h00* Notez le changement de jour et d'heure == Clément Dupont, Université de Montpellier
Motivic Galois theory for algebraic Mellin transforms and Feynman integrals

Séminaire symplectique

11 octobre 2024 == Adi Dickstein, Tel Aviv University
Symplectic topology and ideal-valued measures
4 octobre 2024 == Zihong Chen, MIT
The exponential type conjecture for quantum connections
20 septembre 2024 == Michael Brandenbursky, Ben-Gurion University
The C⁰-gap between entropy-zero and autonomous Hamiltonian diffeomorphisms of surfaces
8 octobre 2021 == Jean-Philippe Chassé, UdeM; Leo Digiosia, Rice; Rima Chatterjee, Cologne
Convergence and Riemannian bounds on Lagrangian submanifolds;
Cylindrical contact homology of links of simple singularities;
Cabling of knots in overtwisted contact manifolds
15 octobre 2021 == Umberto Hryniewicz, RWTH Aachen
Results on abundance of global surfaces of section
22 octobre 2021 == Yaniv Ganor, Technion
Big fiber theorems and ideal-valued measures in symplectic topology
29 octobre 2021 == Yakov Eliashberg, Stanford
Detecting non-trivial elements in the spaces of Legendrian knots via Algebraic K-theory
5 novembre 2021 == Rohil Prasad, Princeton; Alex Pieloch, Columbia; Jimmy Chow, CUHK
The smooth closing lemma for area-preserving surface diffeomorphisms;
Sections and unirulings of families over the projective line;
Hofer geometry of coadjoint orbits and Peterson's theorem
19 novembre 2021 == Fabio Gironella, HU Berlin
Exact orbifold fillings of contact manifolds
26 novembre 2021 == Mohammed Abouzaid, Columbia
Complex cobordism and Hamiltonian fibrations
10 décembre 2021 == Urs Frauenfelder, Augsburg
GIT quotients and symplectic data analysis
17 décembre 2021 == Wenyuan Li, Northwestern; Jakob Hedicke, Bochum; Johan Asplund, Uppsala
Estimating Reeb chords using microlocal sheaf theory;
Lorentzian distance functions on the group of contactomorphisms;
Simplicial descent for Chekanov-Eliashberg dg-algebras
14 janvier 2022 == Michael Sullivan, UMass Amherst
Quantitative Legendrian geometry
21 janvier 2022 == Susan Tolman, UIUC
Beyond semitoric
28 janvier 2022 == Dustin Connery-Grigg, UdeM; Pazit Haim-Kislev, Tel Aviv; Thibaut Mazuir, Paris
Geometry and topology of Hamiltonian Floer complexes in low-dimension;
Symplectic capacities of p-products;
Higher algebra of A-infinity algebras in Morse theory
11 février 2022 == Ely Kerman, UIUC
On symplectic capacities and their blind spots
18 février 2022 == Umut Varolgunes, Boğaziçi
à venir
25 février 2022 == Erman Cineli, Paris
à venir
4 mars 2022 == Marie-Claude Arnaud, Paris
à venir
14 mai 2021 == Daniel Álvarez-Gavela, MIT
Caustics of Lagrangian homotopy spheres with stably trivial Gauss map
7 mai 2021 == Laura Starkston, UC Davis
Unexpected fillings, singularities, and plane curve arrangements
16 avril 2021 == Maxim Jeffs, Harvard; Côme Dattin, Nantes; Bingyu Zhang, Institut Fourier, Université Grenoble Alpes
Mirror symmetry and Fukaya categories of singular varieties;
Wrapped sutured Legendrian homology and the conormal of braids
Capacities from the Chiu-Tamarkin complex
9 avril 2021 == Sara Tukachinsky, IAS
Relative quantum cohomology and other stories
2 avril 2021 == Sheel Ganatra, USC
Categorical non-properness in wrapped Floer theory
26 mars 2021 == Jesse Huang, UIUC; Shaoyun Bai, Princeton; Thomas Melistas, UGA
Variation of FLTZ skeleta;
SU(n)-Casson invariants and symplectic geometry
The Large-Scale Geometry of Overtwisted Contact Forms
19 mars 2021 == Egor Shelukhin, Université de Montréal
Lagrangian configurations and Hamiltonian maps
12 mars 2021 == Oleg Lazarev, Harvard
Inverting primes in Weinstein geometry
5 mars 2021 == Sobhan Seyfaddini, IMJ-PRG
Periodic Floer homology and the large-scale geometry of Hofer's metric on the sphere
26 février 2021 == Sylvain Courte, Grenoble
Twisted generating functions and the nearby Lagrangian conjecture
19 février 2021 == Daniel Pomerleano, Boston
Intrinsic mirror symmetry and categorical crepant resolutions
12 février 2021 == Cheuk Yu Mak, Edinburgh
Non-displaceable Lagrangian links in four-manifolds
5 février 2021 == Baris Yusuf Kartal, Princeton
Algebraic torus actions on Fukaya categories and tameness of change in Floer homology
under symplectic isotopies
29 janvier 2021 == Alexandre Jannaud (Sorbonne), Tim Large (MIT), Oliver Edtmair (Berkeley)
Dehn-Seidel twist, C⁰ symplectic geometry and barcodes;
Floer K-theory and exotic Liouville manifolds
3D convex contact forms and the Ruelle invariant
22 janvier 2021 == Basak Gurel, University of Central Florida
Pseudo-rotations vs. rotations
15 janvier 2021 == Lisa Jeffrey, University of Toronto
Symplectic implosion
11 décembre 2020 == Zhengyi Zhou, IAS, Princeton
Hierarchies of contact manifolds via rational SFT
4 décembre 2020 == Eva Miranda, Universitat Politècnica de Catalunya
The singular Weinstein conjecture and the Contact/Beltrami mirror
27 novembre 2020 == Yu-Wei Fan (Berkeley), Surena Hozoori (Georgia Tech), Marcelo Atallah (Montreal)
Shifting numbers in triangulated categories;
Symplectic Geometry of Anosov Flows in Dimension 3 and Bi-Contact Topology;
Hamiltonian no-torsion
20 novembre 2020 == Paul Biran, ETH, Zürich
Persistence and Triangulation in Lagrangian Topology
13 novembre 2020 == Nick Sheridan, Edinburgh
Quantum cohomology as a deformation of symplectic cohomology
6 novembre 2020 == Kai Cieliebak, Augsburg
Secondary coproducts in Morse and Floer homology
30 octobre 2020 == Simon Allais (ENS Lyon), Orsola Capovilla-Searle (Duke), Julian Chaidez (UCB)
Generating functions in Hamiltonian dynamics and symplectic-contact rigidity;
Weinstein handle decompositions of complements of toric divisors in toric 4 manifolds;
ECH Embedding Obstructions For Rational Surfaces
23 octobre 2020 == Michael Hutchings, Berkeley
Examples related to Viterbo's conjectures
16 octobre 2020 == Umut Varolgunes, Stanford
Mirror symmetry for chain type polynomials
9 octobre 2020 == Lev Buhovsky, Tel Aviv
The Arnold conjecture, spectral invariants and C⁰ symplectic topology
2 octobre 2020 == Dusa McDuff, Columbia
Embedding ellipsoids into the one-point blowup of $\C P^2$
25 septembre 2020 == Jun Zhang, Montreal
Triangulated persistence categories
18 septembre 2020 == Cheol-Hyun Cho, Seoul
Fukaya category for Landau-Ginzburg orbifolds and Berglund-Hübsch
homological mirror symmetry for curve singularities
11 septembre 2020 == Vincent Colin, Nantes
Reeb dynamics in dimension 3 and broken book decompositions
4 septembre 2020 == Georgios Dimitroglou Rizell, Uppsala
Hamiltonian classification and unlinkedness of fibres in cotangent bundles of Riemann surfaces
24 juillet 2020 == John Pardon, Princeton
Pontryagin--Thom for orbifold bordism
17 juillet 2020 == Yusuke Kawamoto (Paris); Shira Tanny (Tel Aviv); Javier Martínez-Aguinaga (Madrid)
Homogeneous quasimorphism, C⁰-topology and Lagrangian intersection; Floer theory of disjointly
supported Hamiltonians; Formal Legendrian and horizontal embeddings
10 juillet 2020 == Peter Ozsvath, Princeton
Knot Floer homology and bordered algebras
3 juillet 2020 == Tara Holm (Cornell)/Ana Rita Pires(Edinburgh)
Infinite staircases and reflexive polygons (Part of Ellipsoid day joint with
Western Hemisphere Virtual Symplectic Seminar)
26 juin 2020 == Ailsa Keating, Cambridge
Distinguishing monotone Lagrangians via holomorphic annuli
19 juin 2020 == Igor Uljarevic, Belgrade
Exotic symplectomorphisms and contact circle action
12 juin 2020 == Mark Mclean, SUNY at StonyBrook
Floer Cohomology and Arc Spaces
5 juin 2020 == Trois exposés courts
Voir https://dms.umontreal.ca/~cornea/Seminar.html
29 mai 2020 == Alex Oancea, Orsay, Paris
Duality for Rabinowitz-Floer homology
22 mai 2020 == Denis Auroux, Harvard
Mirrors of curves and their Fukaya categories
15 mai 2020 == Jo Nelson, Rice
Reflections on Cylindrical Contact Homology
8 mai 2020 == Marco Mazzucchelli, ENS-Lyon
Spectral characterizations of Besse and Zoll Reeb flows
1 mai 2020 == Alberto Abbondandolo, Bochum
Zoll contact forms are local maximisers of the systolic ratio
24 avril 2020 == Lisa Traynor, Bryn Mawr
The Geography of Immersed Lagrangian Fillings of Legendrian Submanifolds
17 avril 2020 == Nicholas Wilkins, Bristol
Equivariant quantum operations and relations between them
10 avril 2020 == Leonid Polterovich, Tel Aviv
Geometry of Quantum Uncertainty
3 avril 2020 == Daniel Cristofaro-Gardiner, IAS
The simplicity conjecture
27 mars 2020 == Octav Cornea, Montréal
Fragmentation pseudo-metrics and Lagrangian submanifolds
13 mars 2020 == Umut Varolgunes, Stanford
Super-rigidity of skeleta associated to complements of symplectic divisors
28 février 2020 == Egor Shelukhin, UdeM
Smith theory in Floer homology, persistence, and dynamics
21 février 2020 == Egor Shelukhin, UdeM
Smith theory in filtered Floer homology
14 février 2020 == Octav Cornea, UdeM
Marked Lagrangian submanifolds and Fukaya categories
7 février 2020 == Jean-Philippe Chassé, UdeM
The topology of Lagrangian submanifolds calibrated by curvature
31 janvier 2020 == Dustin Connery-Grigg, UdeM
A Geometric Realization of the Hamiltonian Floer Complex for Surfaces
24 janvier 2020 == Jun Zhang, CRM-UdeM
Relative growth rate and contact Banach-Mazur distance
17 janvier 2020 == Fabian Ziltener, Utrecht University
Coisotropic submanifolds of symplectic manifolds, leafwise fixed points, and spherical nonsqueezing
8 novembre 2019 == Richard Hind, Notre Dame
Packing and squeezing Lagrangian tori
1 novembre 2019 == Kenji Fukaya, Kyoto University
Lagrangian Floer theory in the divisor complement
18 octobre 2019 == Jun Zhang, CRM
Shape invariant and coarse Banach-Mazur distance
11 octobre 2019, 13h15 == Dmitry Faifman, CRM
Holmes-Thompson intrinsic volumes and Finsler manifolds
4 octobre 2019 == Xiudi Tang, Toronto
Symplectic ray removal and its applications
26 septembre 2019 == Pierre-Alexandre Mailhot, Université de Montréal
The Calabi homomorphism and Lagrangian cobordisms
20 septembre 2019 == Michael Usher, UGA
Local rigidity and C⁰symplectic and contact topology
12 avril 2019 == Egor Shelukhin, Université de Montréal
Viterbo conjecture revisited
5 avril 2019 == Emmanuel Giroux, UMI CNRS-CRM
From Morse functions to symplectic Lefschetz fibrations on cotangent bundles
29 mars 2019 == Jeff Hicks, Berkeley
Wall Crossing and Lagrangian Cobordisms
22 mars 2019 == Baptiste Chantraine, Nantes et UMI-CNRS
Lagrangian cobordisms between Legendrian submanifolds and Lagrangian surgeries (continued)
15 mars 2019 == Nicholas Wilkins, Oxford/MIT
Quantum and Floer Steenrod squares
1 mars 2019 == Baptiste Chantraine, Nantes et UMI-CNRS
Lagrangian cobordisms between Legendrian submanifolds and Lagrangian surgeries
15 février 2019 == Brent Pym, McGill
Holonomic Poisson manifolds
8 février 2019 == Basak Gurel, U Central Florida, Orlando
Dynamics of Hamiltonian pseudo-rotations
1 février 2019, 14h40 == Gael Meigniez, U de Bretagne-Sud
A proof of the Mather-Thurston theorem
1 février 2019 == Alexandre Perrier, Université de Montréal
Lagrangian cobordism groups of surfaces of genus higher than one
25 janvier 2019 == Egor Shelukhin, Université de Montréal
Viterbo conjecture for Zoll symmetric spaces
7 décembre 2018 == Alexandre Perrier, Université de Montréal
Lagrangian cobordism groups of surfaces of genus higher than one
30 novembre 2018 == Egor Shelukhin, Université de Montréal
Viterbo conjecture for Zoll symmetric spaces
16 novembre 2018 == Amiel Peiffer-Smadja, Nantes
Functoriality of the Open-Closed map
9 novembre 2018 == Caitlin Leverson, Georgia Institute of Technology
26 octobre 2018 == Baptiste Chantraine, Nantes et UMI CNRS - CRM
Categories associated to Legendrian links II
12 octobre 2018, 14h35 == Jeremy Lane, University of Geneva
Gelfand-Zeitlin, Ginzburg-Weinstein, and partial tropicalization
12 octobre 2018, 13h30 == Dan Rutherford, Ball State University
Immersed Lagrangian cobordisms and augmentations
28 septembre 2018 == Michael Sullivan, UMASS Amherst and CRM
Cellular contact homology, augmentations and generating families for Legendrian surfaces
21 septembre 2018 == Baptiste Chantraine, Nantes et UMI CNRS - CRM
Categories associated to Legendrian links

Groupe de travail 2024-25

Groupe de travail en géométrie complexe - Organisé par Chung-Ming Pan

Le groupe de travail a lieu le jeudi de 14h00 à 15h30 au PK-5675, UQAM

Groupe de travail 2021-22

Groupe de travail en topologie de basse dimension - Organisé par Tyrone Ghaswala

Le groupe de travail a lieu le lundi à 15h00 au PK-5675, UQAM

Groupe de travail en géométrie algébrique et différentielle - Organisé par Nathan Grieve, Steven Lu et Julien Keller

Le groupe de travail a lieu le jeudi à 12h30 au PK-5675, UQAM

9 décembre 2021 == Steven Lu, UQAM
On the moduli of elliptic curves
16 décembre 2021 == Xuankien Phung, UQAM
On Parshin-Arakelov theorem and uniformity of integral sections on elliptic surfaces
20 janvier 2022 == Ruiran Sun, McGill
An introduction to non-abelian Hodge theory
27 janvier 2022 == Xia Xiao, UQAM
Siu's invariance of plurigenera
2 février 2022 == Ariyan Javanpeykar, Johannes Gutenberg Universität
On Shafarevich's theorem
10 février 2022 == Michael Albanese, UQAM
Almost Complex Structures on Four-Manifolds
17 février 2022 == Houari Benammar, UQAM
An introduction to the notion of singular hermitian metric and positivity
of the direct image of twisted relative canonical bundle
10 mars 2022 == Nathan Grieve, RMC, Carleton
About Fourier transform techniques for derived categories and Chow rings of Abelian varieties
17 mars 2022 == Behrouz Taji, UNSW Sydney
Shafarevich conjecture; Hodge theory meets birational geometry and moduli
24 mars 2022 == Frédéric Rochon, UQAM
On Donaldson's theorem describing the moduli space of SU(2) monopoles on R³
31 mars 2022 == Dan Popovici, Toulouse
Two Notions of Hyperbolicity For Compact Complex Manifolds in Complex Codimension One

Séminaire sur la théorie des catégories

23 janvier 2023 == Ludovic D'Anjou-Madore, UQAM
Catégories de flèches et adjonctions
6 février 2023 == Ludovic D'Anjou-Madore, UQAM
Catégories de flèches et adjonctions II, (un) théorème de Lawvere
20 février 2023 == Ludovic D'Anjou-Madore, UQAM
Yoneda, densité et cocomplétion libre
6 mars 2023 == Marc-André Brochu, UQAM
Limites et Colimites
20 mars 2023 == Marc-André Brochu, UQAM
Limites et Colimites II
17 avril 2023 == Benjamin Dequêne, UQAM
Les complexes simpliciaux
1er mai 2023 == Ludovic D'Anjou-Madore, UQAM
Constructions élémentaires dans les ensembles simpliciaux

Groupe de travail 2019-20

Le lundi
13h00 == Groupes de travail sur la topologie de basse dimension
PK-5675, UQAM. Organisateur: Tyrone Ghaswala

Groupes de travail 2018-19

Le mardi
10h00 - 12h00 == Groupes de travail sur la topologie de basse dimension
PK-5675, UQAM. Organisateurs: Steven Boyer and Biji Wong
Le lundi
13h30 - 15h30 == Groupe de travail en géométrie kählérienne
PK-5675, UQAM. Organisateur: Lars Sektnan

Centre interuniversitaire de recherches en géométrie et topologie