# Seminars and Working Groups

## Geometry and Topology Seminar - Organized by Julien Keller and Duncan McCoy

**Normally the Seminar is held Fridays at 11:00 AM in room PK-5115, Président-Kennedy Building, UQAM. All changes are indicated. To attend virtually, here is the link: https://uqam.zoom.us/j/98999725241**

- November 17, 2023 == Joe Boninger, Boston College

*Twisted knots and the perturbed Alexander invariant* - November 10, 2023 == Mike Wong, University of Ottawa

*Knot Floer homology, barcodes, and primality* - November 3, 2023 == Eva Miranda, Universitat Politècnica de Catalunya

*The Weinstein conjecture, 44 years later* - October 27, 2023, PK-5675 == Yann Rollin, Nantes

*Moment maps in Symplectic geometry and applications to PL symplectic geometry* - October 20, 2023 == Abdellah Lahdili, UQAM

*The Einstein-Hilbert functional in Kähler and Sasaki geometry*: slides - October 13, 2023 == Thomas Barthelmé, Queen's University

*Group actions on bifoliated planes and classification of (pseudo)-Anosov flows in dimension 3* - October 6, 2023, 2:00 pm == Simone Gutt, Université Libre de Bruxelles

*Around almost complex structures* - October 6, 2023 == Claude LeBrun, Stony Brook

*Gravitational Instantons, Weyl Curvature, and Conformally Kahler Geometry* - September 29, 2023 == Tian-Jun Li, University of Minnesota

- September 22, 2023 == Masafumi Hattori, University of Kyoto

*K-stability of CY fibrations over curves*: notes - September 15, 2023 == Daniel Litt, University of Toronto

*Hodge theory, braid groups, and some questions about 2x2 matrices*

## Geometric Group Theory Seminar - Organized by Zachary Munro, William Chong, Chris Karpinski and Piotr Przytycki

**The seminar is held on Wednesdays at 3:00 PM in 920 Burnside Hall**

- November 29, 2023 == Duncan McCoy, UQAM

*Obstructing cusp types of arithmetic hyperbolic manifolds* - November 22, 2023 == Nima Hoda, McGill

*Tree of graph boundaries of hyperbolic groups* - November 8, 2023 == Connor Sell, UQAM

*Cusps of arithmetic hyperbolic manifolds* - November 1, 2023 == Piotr Przytycki, McGill

*Trees, fixed-points and the Cremona group* - October 25, 2023 == Zachary Munro, McGill

*Random Groups are not n-Cubulated* - October 18, 2023 == Ran Tao, CMU

*Quasi-treeable CBERs are treeable via median graphs* - September 13, 2023 == Christopher Karpinski, McGill

*A weak Tits alternative for groups acting on buildings* - August 30, 2023 == Kasia Jankiewicz, University of California, Santa Cruz

*Centers of Artin groups*

## Algebraic Geometry Seminar - Organized by Brent Pym, Jake Levinson, Steven Lu and Joel Kamnitzer

**The seminar is held on Wednesdays at 1:00 pm, PK-5675, UQAM
**

- November 29, 2023 == Changho Han, University of Waterloo

*Extending Torelli map from Smyth's alternative compactifications of the moduli of curves* - November 15, 2023 == Jake Levinson, Université de Montréal

*Minimal fibering degrees and asymptotic degrees of irrationality* - October 3, 2023 == Dave Anderson, Ohio State University/CRM-Simons

*Schubert polynomials, strong transversality, and equivariant positivity* - September 20, 2023 == Mykola Matviichuk, Imperial College London

*Elliptic Log Symplectic Brackets on Projective Bundles* - September 19, 2023 == Karol Palka, Institute of Mathematics, Polish Academy of Sciences

*Almost minimal models and applications* - September 5, 2023 == Kang Zao, Universität Mainz

*On the rigidity and hyperbolicity of families of higher dimensional varieties*

## Symplectic Seminar - Organized by: Octav Cornea (Montréal), Helmut Hofer (IAS), Vincent Humilière (Paris), Agustin Moreno (IAS), Leonid Polterovich (Tel Aviv), Egor Shelukhin (Montréal), Shira Tanny (IAS), Sara Tukachinsky (Tel Aviv), Claude Viterbo (Paris)

**The seminar meets by ZOOM on Fridays at 9:15. The new Symplectic Zoominar is co-organized with Princeton/IAS, Tel Aviv and Paris.
**

## Geometric Analysis Seminar - Organized by Pengfei Guan, Joshua Flynn, Jérôme Vétois

**The seminar is held on Tuesdays at 2:30 PM in Burnside 1104 **