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

May 9, 2025 == Kuan-Hui Lee, Univ. of California, Irvine
The stability of steady pluriclosed soliton
May 2, 2025 == François Nicoleau, Nantes
Global counterexamples to uniqueness for a Calderón problem with smooth conductivities
April 25, 2025 == Richard Melrose, MIT
Gluing and generalized products
April 11, 2025 == Mehdi Lejmi, CUNY
Balanced HKT metrics
April 4, 2025 == Yannick Sire, Johns Hopkins University
Harmonic maps between singular spaces
March 28, 2025 == Roberto Albesiano, Waterloo
From division to extension
March 14, 2025 == Xi Chen, University of Alberta
Cuspidal curves on K3 surfaces
March 7, 2025, 10:00 AM == Behrouz Taji, UNSW Sidney
Boundedness results for families of non-canonically polarized varieties
February 21, 2025 == Ana Balibanu, Louisiana State University
Transversal slices in quasi-Poisson manifolds
February 7, 2025 == Katherine Goldman, McGill
Residual properties of 2-dimensional Artin groups
January 31, 2025 == Jean Pierre Mutanguha, McGill
Canonically decomposing fibrations: 3-manifolds & groups
January 17, 2025 == Patricia Sorya, UQAM
Borner les chirurgies de Dehn non caractérisantes non entières
January 10, 2025 == Chung-Ming Pan, UQAM
Singular Gauduchon metrics and Hermite-Einstein problem on non-Kähler varieties
December 13, 2024 == Olivier Martin, IMPA
Isotrivial Lagrangian fibrations of hyper-Kähler manifolds of K3^[n] and Kum_n type
December 6, 2024 == Caleb Jonker, University of Toronto
Curvatures in generalized Kähler geometry
November 29, 2024 == Panos Dimakis, University of Maryland
On a conjecture of Simpson
November 22, 2024 == Kathryn Mann, Cornell
(bi)-Foliations of the plane and laminations of the circle
CANCELLED - November 15, 2024 == Yannick Sire, Johns Hopkins
Geometric measure of nodal, critical and singular sets for solutions of degenerate equations
November 8, 2024 == Bruno de Oliveira, University of Miami
Chern numbers ratios of surfaces with big cotangent bundle
October 25, 2024 == Freid Tong, University of Toronto
Complete Calabi-Yau metrics and optimal transport problems
October 18, 2024 == Chris Kottke, New College of Florida
Geometric analysis on quasi-fibered boundary (QFB) manifolds
October 4, 2024 == Julien Paupert, Arizona State University.
Complex hyperbolic and projective deformations of Kleinian groups
September 27, 2024 == Nathaniel Sagman, Université du Luxembourg
Labourie’s conjecture and Higgs bundles at high energy
September 13, 2024 == Frédéric Rochon, UQAM
Warped quasi-asymptotically conical Calabi-Yau metrics
September 6, 2024 == Anna Parlak, UC Davis
Faces of the Thurston norm ball dynamically represented by multiple distinct flows

Geometric Group Theory Seminar - Organized by William Chong, Chris Karpinski, Piotr Przytycki and Dani Wise

The seminar is held on Wednesdays at 4:00 PM in 920 Burnside Hall, McGill

April 9, 2025 == Othmane Oukrid, McGill University
Odd Moebius—Kantor Ring Puzzles
April 2, 2025 == Arya Vadnere, University at Buffalo
Gromov boundary of the Grand Arc Graph
March 26, 2025 == Nicholas Touikan, University of New Brunswick
On the conjugacy separability of mapping tori of polynomially growing free group automorphisms
March 19, 2025 == Sam Fisher, University of Oxford
Virtually free-by-cyclic RFRS groups
March 12, 2025 == Aranka Hrušková, Weizmann Institute of Science
Asymptotically commuting measures share the Furstenberg-Poisson boundary
March 5, 2025 == Dani Wise, McGill
A survey on the Kervaire-Laudenbach conjecture
February 26, 2025 == Piotr Przytycki, McGill
A pair of Garside shadows
February 19, 2025 == Chris Karpinski, McGill
Hyperfiniteness of boundary actions of graphical small cancellation groups
February 12, 2025 == Olga Kharlampovich, CUNY, Grad Center and Hunter College
Effective Generalization of Hall’s Theorem for Limit Groups and Cube Complexes
February 5, 2025 == Christophe Hohlweg, UQAM
Shi arrangements in Coxeter groups
January 29, 2025 == Koichi Oyakawa, Vanderbilt University
Geometry and dynamics of the extension graph of graph product of groups
January 22, 2025 == Antoine Poulin, McGill
Measure equivalence of Baumslag-Solitar groups & type III relations
January 15, 2025 == Maninder Dhanauta, McGill
Virtual cactus group is virtually special compact
November 27, 2024 == William Chong, McGill
Embedding Partial HNN Extensions in Ascending HNN Extensions
November 20, 2024 == Bratati Som, University at Buffalo-SUNY
Acylindrical actions on trees and applications to the outer automorphism group of Baumslag-Solitar groups
November 13, 2024 == Daniel Wise, McGill
A small contribution to the Kervaire conjecture
November 6, 2024 == Paige Hillen, UC Santa Barbara
Latent symmetry of graphs and stretch factors in Out(Fn)
October 31, 2024 == Catherine Pfaff, Institute for Advanced Study & Queen’s University
Train track automata for outer automorphisms of free groups and geodesics in outer space
October 23, 2024 == Amy Herron, University at Buffalo
Triangle Presentations in ~A₂ Bruhat-Tits Buildings
October 9, 2024 == Bojun Zhao, UQAM
Reconstruction of Anosov flows from infinity
October 2, 2024 == Katherine Goldman, McGill University
Curvature of Shephard groups
September 25, 2024 == Jean Pierre Mutanguha, McGill University
The dynamics of free group endomorphisms
September 18, 2024 == Changjie Chen, Université de Montréal
Morse functions on the moduli space of hyperbolic surfaces
September 11, 2024 == Zachary Munro, Technion - Israel Institute of Technology
A Coarse Geometric Obstruction to Cubulation

CIRGET Junior Seminar - Organized by Giacomo Bascape, Egor Morozov, Kelvin Ritland and Chenxi Yin

The seminar is held on Wednesdays at 11:00 am, PK-5675, UQAM

April 9, 2025 == Giovanny Soto, UQAM
Special metrics on toric manifolds arising from moment polytopes
March 26, 2025, 5pm == Benabida Abdou Oussama, UQAM
Asymptotics for resolutions and smoothings of Calabi-Yau conifolds
February 19, 2025, 5pm == Denis Vinokurov, Université de Montréal
Searching for Equivariant Harmonic Maps That Maximize Laplacian Eigenvalues on the Sphere
February 12, 2025 == Giacomo Bascape, UQAM
Square and/or Rectangle PEG Problem
January 29, 2025 == Alexis Leroux-Lapierre, McGill
Comparing two biperfect bases using category O
January 15, 2025 == Ruiran Sun, University of Toronto
An introduction to Shafarevich’s conjecture
November 26, 2024 == Emanuele Ronda, UQAM
Vanishing Theorems and application to positivity in Algebraic Geometry
November 5, 2024 == Habib Alizadeh, Université de Montréal
A few topics in Symplectic Geometry
October 29, 2024 == Zakaria Baammi, Université de Montréal
La chirurgie de Fintushel Stern sur une variété de dimension 4 le long d’un nœud K
October 22, 2024 == Bart Syroka, McGill
Balanced metrics on 6-manifolds of cohomogeneity one
October 8, 2024 == Giacomo Bascape, UQAM
3-manifolds and SU(2)-representations
October 1, 2024 == Xia Xiao, UQAM
Canonical metrics (e.g., constant scalar curvature Kähler metrics) on Riemann surfaces

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

The seminar is held on Wednesdays at 2:00 pm, PK-5675, UQAM

May 7, 2025 == Sylvester Zhang, University of Minnesota
Affine Robinson-Schensted Correspondence and Affine Flag varieties
April 30, 2025 == Davood Nejaty, University of Melbourne
A topological mirror symmetry for pairs of commuting Higgs fields
March 26, 2025 == Jonathan Boretsky, McGill University
On two Notions of Flag Positivity
Thursday, March 6, 2025, 3:00 pm == Sándor Kovács, University of Washington
KSB stability is automatic in codimension 3
February 19, 2025 == Ana Balibanu, Louisiana State University
An analogue of Whittaker reduction for group-valued moment maps
February 5, 2025 == Rui Xiong, University of Ottawa
Chern classes of subvarieties over partial flag varieties
January 22, 2025 == Vasily Krylov, Harvard University
From geometric realizations of affine Hecke algebras to character formulas
January 8, 2025 == Joseph Helfer, Simons Center for Geometry and Physics
The integral Chow ring of the moduli stack of compact type curves of genus 2
December 11, 2024 == Olivier Martin, IMPA
The Xiao conjecture for surfaces fibered by trigonal genus 5 curves
December 4, 2024 == Marielle Ong, University of Toronto
Parabolic Multiplicative Affine Springer Fibers
November 20, 2024 == Yu Li, University of Toronto
Polynomial integrable systems from cluster structures
November 6, 2024 == Bruno de Oliveira, University of Miami
Canonical singularities and surfaces with big cotangent bundle
October 30, 2024 == Dennis Gaitsgory, Max Planck Institute
Algebro-geometric version of the Fargues-Scholze Bun_G
October 23, 2024 == Leonid Rybnikov, Université de Montréal
Cactus flower curves, integrable systems, and crystals
October 9, 2024 == Jenna Rajchgot, McMaster University
Determinants, Pfaffians, symmetric quivers, and symmetric varieties
September 25, 2024 == Artem Kalmykov, McGill University
A tale of an R-matrix
September 11, 2024 == Mike Roth, Queen’s University
r-point Seshadri constants and the solution to the symplectic packing problem for P¹ x P¹
September 4, 2024 == Tudor Pădurariu, CNRS-Université Pierre et Marie Curie-Université Paris Diderot
Coherent sheaves on the commuting stack

Symplectic Seminar

The Symplectic Zoominar, co-organized with Princeton/IAS, Tel Aviv and Paris, meets on Fridays at 9:15. The local Symplectic seminar is held on Fridays at 1:30 PM at the CRM, room 4336.

October 11, 2024 == Adi Dickstein, Tel Aviv University
Symplectic topology and ideal-valued measures
October 4, 2024 == Zihong Chen, MIT
The exponential type conjecture for quantum connections
September 20, 2024 == Michael Brandenbursky, Ben-Gurion University
The C⁰-gap between entropy-zero and autonomous Hamiltonian diffeomorphisms of surfaces

Working Group in complex geometry - Organized by Chung-Ming Pan

The working group meets Thursdays from 2:00 PM to 3:30 PM in PK-5675, UQAM