Events at the Mathematics Department

(Fields Institute for Research in Mathematical Sciences:  Weekly Activities)

You can select multiple seminars by pressing "Ctrl" and mouse-clicking.


Thursday February 28, 2013

15:10 16:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

The mathematical languages for patterns of quantum entanglement by Xiao-Gang Wen (Perimeter Institute)

Thursday March 14, 2013

15:10 16:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Formal group laws, Hecke algebras and Oriented cohomology theories by Kirill Zaynullin (University of Ottawa)

Thursday March 21, 2013

15:10 16:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

A classification of SET phases by G-extensions of spherical fusion categories by Lucy Zhang (University of Toronto)

Thursday April 04, 2013

15:10 16:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Quantum Hamiltonian reduction of W-algebras by Stephen Morgan (University of Toronto)

Thursday April 11, 2013

15:10 16:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Asymptotic behavior of multiplicities of reductive group actions by Kiumars Kaveh (University of Pittsburgh)

Thursday May 02, 2013

15:10 16:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Beak diagrams and surface tangles by Philippe Humbert (University of Strasbourg)

Monday July 08, 2013

11:00 12:00 | Geometric Representation Theory | BA6180, Bahen Center, 40 St. George St.

The gap phenomenon in parabolic geometries by Dennis THE (Australian National University)

Thursday September 19, 2013

15:00 16:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

K-theoretic AGT conjecture by Yanagida Shintaro (Kyoto University)

Thursday September 26, 2013

15:00 16:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Cactus group and monodromy of Bethe vectors by Leonid Rybnikov (Higher School of Economics, Moscow)

Thursday October 03, 2013

15:00 16:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

On the torus-equivariant cohomology of p-compact flag varieties by Omar Ortiz (University of Western Ontario)

Thursday October 10, 2013

15:00 16:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Double Mirkovi\'c-Vilonen Cycles and the Naito-Sagaki-Saito Crystal by Dinakar Muthiah (University of Toronto)

Thursday October 24, 2013

15:00 16:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Representation homology and strong Macdonald conjectures by Yuri Berest (Cornell University)

Thursday October 31, 2013

15:00 16:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Double affine Hecke algebras and Jones polynomials by Peter Samuelson (University of Toronto)

Thursday November 07, 2013

15:00 16:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Quantization in positive characteristic and Langlands duality by Tsao-Hsien Chen (Northwestern University)

Thursday November 14, 2013

15:00 16:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Generalizing Kashiwara's equivalence to conic quantized symplectic manifolds by Gwyn Bellamy (University of Glasgow)

Thursday November 21, 2013

15:00 16:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

The mirabolic Hecke algebra by Daniele Rosso (University of Ottawa)

Thursday November 28, 2013

15:00 16:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Webs and quantum skew Howe duality by Joel Kamnitzer (University of Toronto)

Thursday January 23, 2014

15:00 16:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Cycles of Algebraic D-modules in positive characteristic by Chris Dodd (University of Toronto)

Thursday January 30, 2014

15:00 16:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Yangians and the affine Grassmanian by Alex Weekes (University of Toronto)

Thursday February 06, 2014

15:00 16:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Type A quiver loci and Schubert varieties by Jenna Rajchgot (University of Michigan)

Thursday February 27, 2014

15:00 16:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Cohomology rings of quiver moduli from the Harder-Narasimhan stratification by Jonathon Fisher (University of Toronto)

Thursday March 06, 2014

15:00 16:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

​Derived equivalences of hypertoric varieties by Brad Hannigan-Daley (University of Toronto)

Thursday March 20, 2014

15:00 16:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Tensor isomorphism between Yangians and quantum loop algebras by Sachin Gautam (Columbia University)

Thursday March 27, 2014

15:00 16:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Casselman-Shalika Formula for Loop Groups by Manish Patnaik (University of Alberta)

Thursday April 10, 2014

15:00 16:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

How to integrate the quantum group over a surface by David Jordan (University of Edinburgh)

Monday April 14, 2014

14:00 16:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Morse theory in representation theory and algebraic geometry by Thomas Nevins (University of Illinois at Urbana-Champaign)

Tuesday April 15, 2014

13:00 14:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Cohomology vanishing for quantum Hamiltonian reductions by Kevin McGerty (Oxford)

Thursday January 29, 2015

13:00 14:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Introduction to Macdonald Polynomials by Peter Samuelson (University of Toronto)

Tuesday February 03, 2015

10:00 11:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Stable bases for cyclic quiver varieties by Andrei Negut (Columbia University)

Monday September 21, 2015

16:15 17:30 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Billey-Postnikov decompositions and a compactification of cotangent bundles of cominuscule Grassmannians by William Slofstra (University of Waterloo)

Monday September 28, 2015

16:15 17:30 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Elliptic quantum groups by Sachin Gautum (Perimeter Institute)

Monday October 05, 2015

16:15 17:30 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Modular representations with a two-block nilpotent central character by Vinoth Nandakumar (University of Utah)

Friday October 16, 2015

16:15 17:30 | Geometric Representation Theory | FI230, Fields Institute, 222 College St.

Bernstein inequality and holonomic modules by Ivan Loseu (Northeastern University)

Monday October 26, 2015

16:15 17:30 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Modular representation theory of classical groups in p-adic rank by Pavel Etingof (MIT)

16:15 17:30 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Modular representation theory of classical groups in p-adic rank by Pavel Etingof (MIT)

Monday November 02, 2015

16:15 17:30 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

(Real) Schubert Calculus from Marked Points on P^1 by Jake Levinson (University of Michigan)

Monday November 09, 2015

16:00 17:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

(K-theoretic) Hall algebras and sheaves on stacks by Francesco Sala (University of Western Ontario)

Monday November 16, 2015

16:15 17:30 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Quasi-Coxeter algebras by Valerio Toledano Laredo (Northeastern University)

Monday November 23, 2015

16:15 17:30 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Crystal combinatorics from PBW bases by Peter Tingley (Loyola University)

Monday November 30, 2015

16:15 17:30 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Modular representations of affine nil-Hecke algebras and Grothedieck¹s Chow motives of versal flags by Kirill Zaynullin (University of Ottawa)

Monday January 11, 2016

16:00 17:00 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Double Yangians and their appearance in physics by Kevin Costello (Perimeter Institute)

Monday January 18, 2016

15:10 16:30 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Conormal varieties and Temperley-Lieb pipe dreams by Allen Knutson (Cornell University)

Monday January 25, 2016

16:15 17:30 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

(Some) Applications of 3d Gauge Theories to Geometric representation theory by Tudor Dimofte (Perimeter Institute)

Monday February 01, 2016

16:15 17:30 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Monodromy of shift of argument eigenvectors and cactus groups by Joel Kamnitzer (University of Toronto)

Monday February 08, 2016

16:15 17:30 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Kostka-Shoji polynomials by Michael Finkelberg (HSE (Moscow))

Monday February 22, 2016

16:15 17:30 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Understanding the Bernstein center: some recent advances by Alexander Braverman (University of Toronto)

Monday February 29, 2016

16:15 17:30 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Double Bruhat cells and Poisson groupoids. by Victor Mouquin (University of Toronto)

Monday March 07, 2016

16:15 17:30 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

P=W for nodal curves, in rank one by Michael McBreen (MIT)

Monday March 14, 2016

16:15 17:30 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Quantization, reduction mod p, and Autoequivalences of the Weyl algebra by Chris Dodd (Perimeter Institute)

Monday March 21, 2016

16:15 17:30 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Preprojective algebra structure on Skew-group algebras by Louis-Phillipe Thibault (University of Toronto)

Monday March 28, 2016

16:15 17:30 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

GKZ-Hypergeometric Systems and Tilting Sheaves in Hypertoric Category O by Justin Hilburn (University of Oregon)

Monday April 04, 2016

16:15 17:30 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

The Iwahori-Hecke algebra for p-adic loop groups: the double-coset basis and double-affine Bruhat order by Dinakar Muthiah (University of Alberta)

Monday September 12, 2016

14:10 15:00 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Monodromy of the Casimir connection and Coxeter categories by Andrea Appel (University of Southern California)

Thursday September 22, 2016

15:00 17:00 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

A Poly-Time Knot Polynomial Via Solvable Approximation by Dror Bar-Natan (University of Toronto)

15:10 17:00 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

A Poly-Time Knot Polynomial Via Solvable Approximation by Dror Bar-Natan (University of Toronto)

Monday September 26, 2016

15:10 16:30 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Minuscule Schubert calculus and the geometric Satake correspondence by David Anderson (Ohio State University)

Thursday October 20, 2016

15:00 16:30 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Brick varieties and the toric variety of the associahedron by Laura Escobar (University of Illinois Urbana-Champaign)

Thursday October 27, 2016

15:00 16:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

On the Medvedev-Scanlon Conjecture in dimension 3 by Matthew Satriano (University of Waterloo)

Thursday November 10, 2016

15:00 16:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Interval pattern avoidance for K-orbit closures by Alexander Woo (University of Idaho)

Monday November 21, 2016

15:10 16:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Murnaghan-Nakayama Rules in Schubert Calculus by Frank Sottile (Texas A&M University)

Thursday December 01, 2016

15:00 16:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Gaudin model and opers by Leonid Rybnikov (Higher School of Economics)

Thursday January 12, 2017

15:10 16:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Tropicalization of Higher Teichmuller Spaces by Ian Le (Perimeter Institute)

Thursday February 02, 2017

15:10 16:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

A reason for representation theorists to play billiards by Aaron Fenyes (University of Toronto)

Thursday February 09, 2017

15:10 16:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Gauge theory, vertex algebras and the Geometric Langlands program by Davide Gaiotto (Perimeter Institute)

Thursday March 02, 2017

15:10 16:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Quantum K-theory of the Grassmannian and the Baxter Operator by Petr Pushkar (Columbia University)

Thursday March 09, 2017

15:10 16:30 | Geometric Representation Theory | See Abstract

Positive representations of quantum groups by Alexander Shapiro (University of Toronto)

Thursday March 23, 2017

15:10 16:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Monodromy of Bethe vectors and crystals by Joel Kamnitzer (University of Toronto)

Thursday March 30, 2017

15:10 16:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Towards new relative compactifications of Calogero-Moser space by Asilata Bapat (University of Georgia)

Thursday April 06, 2017

15:10 16:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Donaldson-Thomas transformations for moduli spaces of local systems on surfaces by Linhui Shen (Northwestern University)

Thursday April 27, 2017

15:10 16:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Positive Representations of Split Real Quantum Groups by Ivan Chi-Ho Ip (Kyoto University)

Friday May 26, 2017

13:00 14:30 | Geometric Representation Theory | BA6180, Bahen Center, 40 St. George St.

Categorification via blocks of modular representations of sl_n by Vinoth Nandakumar (University of Sydney)

Friday June 09, 2017

13:00 14:30 | Geometric Representation Theory | BA6183, Bahen Center, 40 St. George St.

Tensor Multiplicity via Upper Cluster Algebras by JiaRui Fei (NCTS Taipei)

Friday September 15, 2017

14:10 15:30 | Geometric Representation Theory | See Abstract

Asymptotic Hecke algebra and its spectral description by Alexander Braverman (University of Toronto)

Friday September 22, 2017

14:10 15:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Stable envelopes and derived equivalences by Roman Bezrukavnikov (MIT)

Friday September 29, 2017

14:10 15:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Perfect bases, MV cycles, and measures by Joel Kamnitzer (University of Toronto)

Friday October 06, 2017

14:10 15:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

The extended BFN category and shifted Yangians by Ben Webster (University of Waterloo)

Friday October 13, 2017

14:10 15:30 | Geometric Representation Theory | FI230, Fields Institute, 222 College St.

Exotic cluster structures on $SL​_n$ by Michael Shapiro (Michigan State University)

Friday October 20, 2017

15:10 16:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

The center of the reflection equation algebra (and quantum group) for $\mathfrak{gl}_n$ by Noah White (University of California, Los Angeles)

Friday October 27, 2017

14:10 15:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

From dimers to webs by Chris Fraser (Indiana University - Purdue University, Indianapolis)

Friday November 03, 2017

14:10 15:30 | Geometric Representation Theory | FI230, Fields Institute, 222 College St.

Central Degeneration of Semi-infinite Orbits and Mirkovic-Vilonen Cycles in the Affine Grassmannian by Qiao Zhou (Perimeter Institute)

Friday November 10, 2017

14:10 15:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

The Coherent Satake Category by Harold Williams (University of California, Davis)

Friday November 17, 2017

14:10 15:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

On dimensions of irreducible representations of semisimple Lie algebras in characteristic $p$. by Ivan Loseu (Northeastern University)

Friday November 24, 2017

14:10 15:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Physics of the Categorical Geometric Langlands Correspondence by Philsang Yoo (Yale University)

Thursday January 04, 2018

15:10 16:00 | Geometric Representation Theory | BA6180, Bahen Center, 40 St. George St.

Exceptionally simple PDE by Dennis The (University of Tromso)

Thursday January 11, 2018

13:10 14:00 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Kostant Convexity and the Affine Grassmannian by Jacinta Torres (Max Planck Institute Leipzig)

Friday January 19, 2018

15:30 17:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Cycles on the special fiber of some Shimura varieties and Tate conjecture by Liang Xiao (University of Connecticut)

Friday January 26, 2018

13:10 14:30 | Geometric Representation Theory | FI230, Fields Institute, 222 College St.

Beilinson-Bernstein localization via the wonderful compactification by Iordan Ganev (IST Austria)

Friday February 02, 2018

14:10 15:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Mirror Symmetry and Modular Representations for Hypertoric Varieties by Michael Michael McBreen McBreen (University of Toronto)

Friday February 09, 2018

14:10 15:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Cohen-Macaulay representation theory for Gorenstein algebras by Vincent Gelinas (University of Toronto)

Friday February 16, 2018

14:10 15:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Semi-infinite cohomology vs quantum group cohomology by Chia-Cheng Liu (University of Toronto)

Friday March 02, 2018

14:10 15:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Twisted Yangians of symplectic and orthogonal Lie algebras by Curtis Wendlandt (University of Alberta)

Friday March 09, 2018

14:10 15:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Hecke algebras and categorification by Liron Speyer (University of Virginia)

Friday March 30, 2018

13:10 14:00 | Geometric Representation Theory | BA6183, Bahen Center, 40 St. George St.

A Kazhdan-Lusztig algorithm for Whittaker modules by Anna Macquarie Romanov (University of Utah)

Friday April 06, 2018

14:10 15:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Shifted quantum affine algebras and modified quantum difference Toda systems by Oleksandr Tsymbaliuk (Yale University)

Friday April 13, 2018

14:10 15:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Cluster theory of the quantum Toda chain by Gus Schrader (Columbia University)

Friday April 20, 2018

13:10 14:30 | Geometric Representation Theory | BAB026, Bahen Center, 40 St. George St.

Singular Hodge theory of matroids by Nicholas Proudfoot (University of Oregon)

Friday May 04, 2018

14:10 15:30 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Quantum Frobenius phenomena on multiplicative quiver varieties. by David Jordan (University of Edinburgh)

Friday May 25, 2018

14:10 15:30 | Geometric Representation Theory | HU1018, 215 Huron St.

On a conjecture of Bump–Nakasuji–Naruse about the Casselman basis by Changjian Su (Institut des hautes études scientifiques (IHÉS))

Friday September 07, 2018

15:15 16:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Pizzas and Kazhdan-Lusztig atlases on toric surfaces by Balazs Elek (University of Toronto)

Friday September 14, 2018

15:15 17:00 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Localization for W-algebras by Gurbir Dhillon (Stanford University)

Friday September 21, 2018

15:00 17:00 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

W-algebras and moduli of sheaves on surfaces by Andrei Negut (MIT)

Friday September 28, 2018

15:00 17:00 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Towards a categorification of a projection from the affine to the finite Hecke algebra in type A by Kostiantyn Tolmachov (Perimeter Institute)

Friday October 05, 2018

15:00 17:00 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

The Quantum Hikita Conjecture by Michael McBreen (University of Toronto)

Friday October 12, 2018

13:00 15:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

On localization in positive characteristic by Roman Bezrukavnikov (MIT)

15:00 17:00 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Yangians from Nakajima quiver varieties by Ben Davison (Edinburgh University)

Friday October 19, 2018

15:00 17:00 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Open de Rham spaces and the purity conjecture for wild character varieties. by Dimitri Wyss (Paris 6)

Friday October 26, 2018

15:15 17:00 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Category O and Mixed Motives by Jens Eberhardt (UCLA)

Friday November 02, 2018

15:15 17:00 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Bernstein-Sato polynomials in positive characteristic and Hodge theory by Thomas Bitoun (University of Toronto)

Friday November 09, 2018

15:00 17:00 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Weyl group action on weight zero Mirković-Vilonen cycles and equivariant multiplicities by Dinakar Muthiah (Kavli Institute for the Physics and Mathematics of the Universe, University of Tokyo)

Friday November 16, 2018

15:00 17:00 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Harish-Chandra bimodules over quantized symplectic singularities by Ivan Losev (University of Toronto)

Friday November 23, 2018

15:00 17:00 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

On the Kirwan map for moduli of Higgs bundles by Emily Cliff (University of Illinois at Urbana Champaign)

Friday November 30, 2018

15:00 17:00 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

K-theoretic enumerative geometry and the Hilbert scheme of points on a surface by Noah Arbesfeld (Columbia University)

Friday January 18, 2019

16:00 18:00 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Homology of affine Grassmannian and quantum cohomology by Changjian Su (University of Toronto)

Friday January 25, 2019

16:00 17:00 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Local geometric Langlands and Lie superalgebras by Alexander Braverman (University of Toronto)

Friday March 01, 2019

16:00 18:00 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Hilbert schemes of points on singular surfaces by Balazs Szendroi (University of Oxford)

Friday March 08, 2019

16:00 17:00 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Symplectic leaves for generalized affine Grassmannian slices by Alex Weekes (Perimeter Institute)

Friday March 15, 2019

16:00 18:00 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

Drinfeld-Gaitsgory interpolation Grassmannian and geometric Satake equivalence by Vasily Krylov (National Research University Higher School of Economics)

Friday March 22, 2019

15:00 16:00 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

On G-equivariant quantizations of nilpotent coadjoint orbits by Dmytro Matvieievskyi (Northeastern University)

16:00 17:00 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

The two-legged K-theoretic equivariant vertex by Anton Osinenko (Columbia University)

Friday March 29, 2019

15:00 16:00 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

The PT/M-correspondence by Yakov Kononov (Columbia University)

Friday April 19, 2019

16:00 17:00 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

MV cycles from generalized orbital varieties by Anne Dranowski (University of Toronto)

Friday September 06, 2019

15:10 16:30 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

3d mirror symmetry for elliptic stable envelopes by Andrey Smirnov (University of California, Berkeley)

Friday September 13, 2019

14:00 16:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Homological mirror symmetry for the universal centralizer by Xin Jin (Boston College)

Friday September 20, 2019

14:00 16:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Tamely ramified geometric Langlands correspondence in positive characteristic by Shiyu Shen (University of Toronto Mississauga)

Friday September 27, 2019

14:00 15:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Cotangent Schubert Calculus by Leonardo Mihalcea (Virginia Tech)

Friday October 04, 2019

14:00 15:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Conformal blocks for Galois covers of algebraic curves by Jiuzu Hong (University of North Carolina at Chapel Hill)

Friday October 11, 2019

14:00 15:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

From puzzles to Lagrangian correspondences: a branching story by Iva Halacheva (Northeastern University)

Friday October 18, 2019

14:00 15:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Double Bott-Samelson cells and cluster algebras by Linhui Shen (Michigan State University)

Wednesday October 23, 2019

13:00 14:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Finite-dimensional representations of quantized Gieseker varieties by José Rodríguez (UC Davis)

Friday October 25, 2019

14:00 15:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

A Catalogue of Twists for Supersymmetric Quantum Field Theory by Chris Elliott (University of Massachusetts Amherst)

Friday November 01, 2019

13:00 14:30 | Geometric Representation Theory | FI230, Fields Institute, 222 College St.

3d-mirror symmetry and real life by Andrei Okounkov (Columbia University)

14:30 16:00 | Geometric Representation Theory | FI230, Fields Institute, 222 College St.

Cluster structure on K-theoretic Coulomb branches by Alexander Shapiro (The University of Edinburgh)

Friday November 15, 2019

14:00 15:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

The Structure of Multiplicative Preprojective Algebras by Daniel Kaplan (Imperial College London)

Friday November 22, 2019

14:00 15:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Slices of the Affine Grassmannian and Quantum Cohomology by Ivan Danilenko (Columbia University)

Friday January 10, 2020

14:00 15:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Representations of Lie algebras of vector fields on algebraic varieties by Yuly Billig (Carleton University)

15:30 16:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Hypertoric varieties and graph invariants by Michael McBreen (Harvard CMSA / QGM Aarhus)

Friday January 17, 2020

14:00 15:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Towards a fibrewise compactification of the Mishchenko--Fomenko system by Peter Crooks (Northeastern University)

Friday January 24, 2020

14:00 15:30 | Geometric Representation Theory | FI210, Fields Institute, 222 College St.

HOMFLY-PT Knot Homology and 3d Mirror Symmetry by Justin Hilburn (Perimeter Institute)

Friday January 31, 2020

14:00 15:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

The Coxeter Transformation and Promotion by Emine Yildirim (Queen's University)

Friday February 07, 2020

13:30 15:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

S(ymplectic) duality: where do we stand? by Ben Webster (University of Waterloo)

Friday February 14, 2020

13:30 15:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Spaltenstein varieties of pure dimension by Yiqiang Li (SUNY at Buffalo )

Friday February 28, 2020

13:30 15:30 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

Mirkovic-Vilonen cycles, preprojective algebra modules and Duistermaat-Heckman measures by Joel Kamnitzer (University of Toronto)

Friday March 06, 2020

13:30 15:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

K-theoretic Hall algebras for quivers with potential by Tudor Padurariu (MIT)

Thursday March 12, 2020

14:30 15:30 | Geometric Representation Theory | HU1018, 215 Huron St.

A monomial basis for the cohomology rings of regular nilpotent Hessenberg varieties by Tatsuya Horiguchi (Osaka University)

Thursday March 19, 2020

14:00 15:00 | Geometric Representation Theory | Stewart Library, Fields Institute, 222 College St.

[Canceled]

The integral cohomology rings of Peterson varieties by Hiraku Abe (Osaka Prefectural University)

Friday September 25, 2020

14:00 15:30 | Geometric Representation Theory | Virtual

Cohomology of the moduli of Higgs bundles, the Hausel-Thaddeus conjecture, and the P=W conjecture by Junliang Shen (MIT)

Friday October 02, 2020

10:00 11:30 | Geometric Representation Theory | Virtual

Frobenius structure conjecture and application to cluster algebras by Tony Yue Yu (Université Paris-Sud, Paris-Saclay)

Friday October 09, 2020

14:00 15:30 | Geometric Representation Theory | Virtual

Derived cobordism theories by Toni Annala (University of British Columbia)

Friday October 16, 2020

14:00 15:30 | Geometric Representation Theory | Virtual

p-adic orbital integrals and knot homology by Oscar Kivinen (University of Toronto)

Friday October 23, 2020

14:00 15:00 | Geometric Representation Theory | Virtual

Geometric Langlands for l-adic sheaves by Sam Raskin (The University of Texas at Austin)

Friday October 30, 2020

14:00 15:00 | Geometric Representation Theory | Virtual

Spherical varieties, L-functions, and crystal bases by Jonathan Wang (MIT)

14:00 15:00 | Geometric Representation Theory | Virtual

Spherical varieties, L-functions, and crystal bases by Jonathan Wang (MIT)

Friday November 06, 2020

14:00 15:00 | Geometric Representation Theory | Virtual

ON THE CENTER OF THE SMALL QUANTUM GROUP AND RELATED RESULTS by Pablo Boixeda Alvarez (Institute for Advanced Studies (IAS))

Friday November 13, 2020

14:00 15:00 | Geometric Representation Theory | Virtual

Hitchin fibration and commuting variety by Tsao-Hsien Chen (University of Minnesota, Twin Cities)

Friday November 20, 2020

14:00 15:00 | Geometric Representation Theory | Virtual

Steinberg slices in quasi-Poisson manifolds by Ana Balibanu (Harvard University)

Thursday December 03, 2020

14:00 15:00 | Geometric Representation Theory | Virtual

The asymptotic geometry of the Hitchin moduli space by Laura Fredrickson (University of Oregon)

Friday December 04, 2020

14:00 15:00 | Geometric Representation Theory | Virtual

The asymptotic geometry of the Hitchin moduli space by Laura Fredrickson (University of Oregon)

Friday February 26, 2021

13:30 14:30 | Geometric Representation Theory | Virtual

Monodromic model for Khovanov-Rozansky homology by Kostya Tolmachov (University of Toronto)

Friday March 12, 2021

14:00 15:00 | Geometric Representation Theory | Virtual

A Weak Categorical Quantum Toroidal Action on the Derived Categories of Hilbert Schemes by Yu Zhao (MIT)

Friday March 19, 2021

14:00 15:00 | Geometric Representation Theory | Virtual

The unramified affine springer fiber and the nabla operator by Erik Carlsson (University of California Davis)

Friday March 26, 2021

14:00 15:00 | Geometric Representation Theory | Virtual

Sheaves on semi-infinite flags as factorization modules by Justin Campbell (Caltech)

Friday April 02, 2021

10:00 11:00 | Geometric Representation Theory | Virtual

Spectra of Bethe subalgebras of Yangian Y(gl_n) by Aleksei Ilin (HSE)

Friday April 09, 2021

14:00 15:00 | Geometric Representation Theory | Virtual

Motivic Chern classes of the Schubert cells and applications by Changjian Su (University of Toronto)

Friday April 16, 2021

14:00 15:00 | Geometric Representation Theory | Virtual

Eisenstein series via factorization homology of Hecke categories by Quoc Ho (IST Austria)

Friday April 23, 2021

14:00 15:00 | Geometric Representation Theory | Virtual

Nabla operator, affine permutations, and affine Springer fibers by Anton Mellit (IST Austria)

Tuesday October 19, 2021

14:00 15:30 | Geometric Representation Theory | See Abstract

Stable map resolutions and Bj\"orner-Wachs spheres by Allen Knutson (Cornell University)

Tuesday October 26, 2021

14:00 15:00 | Geometric Representation Theory | See Abstract

Derived Satake equivalence for Godement-Jacquet monoids by Jonathan Wang (Perimeter Institute)

Tuesday November 02, 2021

14:00 15:00 | Geometric Representation Theory | BA1200, Bahen Center, 40 St. George St.

Denominators in Lusztig's asymptotic Hecke algebra by Stefan Dawydiak (University of Toronto)

Tuesday November 09, 2021

14:00 15:00 | Geometric Representation Theory | BA1200, Bahen Center, 40 St. George St.

Examples of Hecke eigen-functions for moduli spaces of bundles over local non-archimedian field. by Alexander Braverman (University of Toronto)

Tuesday November 23, 2021

14:00 15:00 | Geometric Representation Theory | BA1200, Bahen Center, 40 St. George St.

Complex K-theory of the moduli space of Higgs bundles by Shiyu Shen (University of Toronto)

Tuesday December 07, 2021

14:00 15:00 | Geometric Representation Theory | Virtual

Categorical Representation Theory and the Coarse Quotient by Tom Gannon (UT Austin)