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. As of May 8, 2020, the CIRGET Seminar meets virtually. Zoom link: https://uqam.zoom.us/j/98999725241

  • July 24, 2020 == Livio Liechti, Université de Fribourg
    TBA
  • July 17, 2020 == Joshua Howie, UC Davis
    TBA
  • July 10, 2020 == Gabriele Mondello, Università di Roma, La Sapienza
    On spherical surfaces of genus 1 with 1 conical point
  • July 3, 2020 == Nicolina Istrati, Tel Aviv University
    Variational problems in conformal geometry - slides and talk
  • June 26, 2020 == Martin Bobb, UT Austin
    Decomposition along flats for convex projective manifolds - talk
  • June 19, 2020 == Vaibhav Gadre, University of Glasgow
    Statistical hyperbolicity of Teichmuller spaces - slides and talk
  • June 12, 2020 == Eiji Inoue, Tokyo
    mu-cscK metrics and muK-stability of polarized manifolds - slides and talk
  • June 5, 2020 == Ben Weinkove, Northwestern
    The Chern-Ricci flow - slides and talk
  • May 29, 2020 == Lukas Lewark, Regensberg
    Squeezed knots - slides and talk
  • May 22, 2020 == Patrick Orson, Boston College
    Topologically embedding spheres in knot traces
  • May 15, 2020 == Ekatarina Amerik, Paris Sud
    Around the cone conjecture for hyperkähler manifolds - slides
  • May 8, 2020 == Henri Guenancia, CNRS, Toulouse
    Families of singular Kähler-Einstein metrics - slides
  • March 6, 2020 == Clayton McDonald, Boston College
    Doubly slice odd pretzel knots
  • February 21, 2020 == Artour Tomberg, University of Western Ontario
    Vector bundles on twistor spaces of hyperkähler manifolds
  • February 14, 2020 == Joel Kamnitzer, University of Toronto
    Symplectic duality and the Hikita Conjecture
  • February 7, 2020, 10:00 == Gavin Ball, CIRGET, UQAM
    Closed G2-structures inducing a conformally flat metric
  • January 31, 2020 == Michael Albanese, CIRGET, UQAM
    Almost Complex Structures on Rational Homology Spheres
  • January 24, 2020 == Michael Lipnowski, McGill
    The Seiberg-Witten equations and the length spectrum of hyperbolic three-manifolds
  • January 17, 2020 == Tyrone Ghaswala, CIRGET
    Infinite-type surfaces and the arcs that survive
  • December 6, 2019 == Lars Sektnan, Aarhus University
    Optimal symplectic connections on holomorphic submersions
  • November 29, 2019 == Thomas Hockenhull, University of Glasgow
    Koszul duality and Knot Floer homology
  • November 22, 2019, 10:00 == Ahmad Issa, UBC
    Embedding Seifert fibered spaces in the 4-sphere
  • November 22 2019 == Sungmo Kang, University of Texas at Austin
    Hyperbolic primitive/Seifert knots in the 3-sphere
  • November 8, 2019 == Andrei Moroianu, Paris 11
    Weakly complex homogeneous spaces
  • November 1, 2019 == Kenji Fukaya, Kyoto University
    Virtual fundamental chain and its application
  • October 18, 2019 == Fei Hu, Waterloo
    Dynamical degrees of self-maps on abelian varieties
  • October 11, 2019 == Maxence Mayrand, University of Toronto
    Symplectic reduction, GIT quotients, and Nahm’s equations
  • October 4, 2019, 10:00 ==Kang Zuo, Mainz
    A p-adic characterization of modular curves
  • October 4, 2019 == Georges Dloussky, Marseille
    Positive (1,1) currents on some non-Kähler compact complex surfaces
  • September 27, 2019 == Gerard Freixas, Institut de mathématiques de Jussieu
    On the BCOV invariant of Calabi-Yau manifolds
  • September 20, 2019, 10:00 == Michael Brandenbursky, Ben-Gurion University
    Fragmentation norm and relative quasimorphisms
  • September 20, 2019 == Jen Hom, Georgia Tech
    More concordance homomorphisms from knot Floer homology
  • September 13, 2019 == Artem Kotelskiy
    Immersed curves in Khovanov homology
  • September 13, 10:00 == Linh Truong, Institute for Advanced Study
    An infinite rank summand of the homology cobordism group
  • September 11, 2019 == Brendan Owens, University of Glasgow
    Embeddings of rational balls
  • September 9, 2019 == Mike Willis, UCLA
    Defining Khovanov homology and Rasumussen’s invariant in #r(S1 x S2)
  • September 6, 2019 == David Calderbank, Bath
    GL2 geometries and quaternionic manifolds with symmetry
  • September 6, 2019 at 10:00 == Ian Zemke, Princeton
    Ribbon concordances and knot Floer homology
  • August 23, 2019 == Shu-Cheng Chang, National Taiwan University
    Yau’s Uniformization Conjecture in Sasakian Manifolds

Geometric Group Theory Seminar - Organised by Macarena Covadonga Robles Arenas

Normally, the seminar is held on Wednesdays at 3:00 PM, Burnside Hall, room 1140, McGill. As of March 18, 2020, the Seminar is held online.

  • March 25, 2020 == Sami Douba, McGill
    Finitely generated subgroups of compact Lie groups
  • March 18, 2020 == Merlione Incerti-Medici, Zurich
    Topologies and metrics on the Morse boundary
  • March 11, 2020 == Ilya Kapovich, Hunter College of CUNY
    Singularity properties of random free group automorphisms and of random trees in the boundary of Outer space
  • February 19, 2020 == James Farre, Yale University
    Hyperbolic volume and bounded cohomology
  • February 12, 2020 == Michał Marcinkowski, IMPAN
    Bounded cohomology of transformation groups
  • February 5, 2020 == Tyrone Ghaswala, Université du Québec à Montréal
    Promoting circular-orderability to left-orderability
  • January 29, 2020 == Rylee Lyman, Tufts University
    Train Tracks, Orbigraphs and CAT(0) Free-by-cyclic groups
  • January 22, 2020 == Damian Osajda, University of Wrocław
    Helly groups
  • January 15, 2020 == Dani Wise, McGill
    Intro to word-hyperbolic groups
  • January 8, 2020 == Abdalrazzaq Zalloum, Queen’s University
    Growth of stable subgroups in Morse-local-to-global groups
  • November 20, 2019 == Dani Wise, McGill University
    A vanishing result for the second L2-Betti number.
  • November 13, 2019 == Elizabeth Fields, University of Illinois at Urbana-Champaign
    Trees, dendrites, and the Cannon-Thurston map
  • November 6, 2019 == Jens Harlander, Boise State University
    Geometry and topology of labeled oriented trees.
  • October 30, 2019 == Nima Hoda, École normale supérieure
    Crystallographic Helly Groups
  • October 23, 2019 == Kasia Jankiewicz, University of Chicago
    Residual finiteness of three generator Artin groups
  • October 16, 2019 == Heejoung Kim, University of Illinois at Urbana-Champaign
    Algorithms detecting stability and Morseness for finitely generated groups
  • October 9, 2019 == Rémi Coulon, Institut de recherche mathématique de Rennes
    Twisted Patterson-Sullivan measure and applications to growth problems
  • October 2, 2019 == Catherine Pfaff, Queen’s University
    Typical trees: an Out(Fr) excursion
  • September 25, 2019 == Piotr Przytycki, McGill University
    Tits alternative in dimension 2
  • September 18, 2019 == Michael Brandenbursky, Ben-Gurion University
    Entropy, metrics and quasi-morphisms
  • September 11, 2019 == Daniel Woodhouse, University of Oxford
    Action rigidity of free products of hyperbolic manifold groups

Symplectic Seminar - Organised by: Octav Cornea and Egor Shelukhin

Normally the seminar meets on Fridays, from 1:40 to 2:40 at UQAM, room PK-5115. As of March 27, 2020, the Seminar is held by ZOOM at the times indicated. The new Symplectic Zoominar is co-organized with Princeton/IAS, Tel Aviv and Paris. Main ZOOM link: https://umontreal.zoom.us/j/94366166514?pwd=OHBWcGluUmJwMFJyd2IwS1ROZ0FJdz09 (backup/alternate link https://princeton.zoom.us/j/745635914)

  • September 11, 2020, 9:15 == Vincent Colin, Nantes
    TBA
  • September 4, 2020, 9:15 == Georgios Dimitroglou Rizell, Uppsala
    TBA
  • July 24, 2020, 9:15 == John Pardon, Princeton
    TBA
  • July 17, 2020, 9:15 == Three 20 min research talks: Yusuke Kawamoto (Paris); Shira Tanny (Tel Aviv); Javier Martínez-Aguinaga (Madrid)
    TBA
  • July 10, 2020, 9:15 == Peter Ozsvath, Princeton
    TBA
  • July 3, 2020, 9:15 == Tara Holm (Cornell)/Ana Rita Pires(Edinburgh)
    Infinite staircases and reflexive polygons (Part of Ellipsoid day joint with Western Hemisphere Virtual Symplectic Seminar)
  • June 26 2020, 9:15 == Ailsa Keating, Cambridge
    Distinguishing monotone Lagrangians via holomorphic annuli
  • June 19 2020, 9:15 == Igor Uljarevic, Belgrade
    Exotic symplectomorphisms and contact circle action
  • June 12 2020, 9:15 == Mark Mclean, SUNY, Stony Brook
    Floer Cohomology and Arc Spaces
  • June 5 2020, 9:15 == Three short research talks
    See https://dms.umontreal.ca/~cornea/Seminar.html
  • May 29 2020, 9:15 == Alex Oancea, Orsay, Paris
    Duality for Rabinowitz-Floer homology
  • May 22, 2020, 9:15 == Denis Auroux, Harvard
    Mirrors of curves and their Fukaya categories
  • May 15, 2020, 9:15 == Jo Nelson, Rice
    Reflections on Cylindrical Contact Homology
  • May 8, 2020, 9:15 == Marco Mazzucchelli, ENS-Lyon
    Spectral characterizations of Besse and Zoll Reeb flows
  • May 1, 2020, 9:15 == Alberto Abbondandolo, Bochum
    Zoll contact forms are local maximisers of the systolic ratio
  • April 24, 2020, 9:15 == Lisa Traynor, Bryn Mawr
    The Geography of Immersed Lagrangian Fillings of Legendrian Submanifolds
  • April 17, 2020, 9:15 == Nicholas Wilkins, Bristol
    Equivariant quantum operations and relations between them
  • April 10, 2020, 9:15 == Leonid Polterovich, Tel Aviv
    Geometry of Quantum Uncertainty
  • April 3, 2020, 9:15 == Daniel Cristofaro-Gardiner, IAS
    The simplicity conjecture
  • March 27, 2020, 9:00 == Octav Cornea, Montreal
    Fragmentation pseudo-metrics and Lagrangian submanifolds
  • March 13, 2020 == Umut Varolgunes, Stanford
    Super-rigidity of skeleta associated to complements of symplectic divisors
  • February 28, 2020 == Egor Shelukhin, UdeM
    Smith theory in Floer homology, persistence, and dynamics
  • February 21, 2020 == Egor Shelukhin, UdeM
    Smith theory in filtered Floer homology
  • February 14, 2020 == Octav Cornea, UdeM
    Marked Lagrangian submanifolds and Fukaya categories
  • February 7, 2020 == Jean-Philippe Chassé, UdeM
    The topology of Lagrangian submanifolds calibrated by curvature
  • January 31, 2020 == Dustin Connery-Grigg, UdeM
    A Geometric Realization of the Hamiltonian Floer Complex for Surfaces
  • January 24, 2020 == Jun Zhang, CRM-UdeM
    Relative growth rate and contact Banach-Mazur distance
  • January 17, 2020 == Fabian Ziltener, Utrecht University
    Coisotropic submanifolds of symplectic manifolds, leafwise fixed points, and spherical nonsqueezing
  • November 8, 2019 == Richard Hind, Notre Dame
    Packing and squeezing Lagrangian tori
  • November 1, 2019 == Kenji Fukaya, Kyoto University
    Lagrangian Floer theory in the divisor complement
  • October 18, 2019 == Jun Zhang, CRM
    Shape invariant and coarse Banach-Mazur distance
  • October 11, 2019, 1:15 == Dmitry Faifman, CRM
    Holmes-Thompson intrinsic volumes and Finsler manifolds
  • October 4, 2019 == Xiudi Tang, Toronto
    Symplectic ray removal and its applications
  • September 26, 2019 == Pierre-Alexandre Mailhot, Université de Montréal
    The Calabi homomorphism and Lagrangian cobordisms
  • September 20, 2019 == Michael Usher, UGA
    Local rigidity and C0symplectic and contact topology

Working Groups 2019-20