activity
19952026
most citedThe elliptic Hall algebra and the equivariant K-theory of the Hilbert scheme of

129 citations · 692 across the 54 of their papers we have counts for

collaborators

60 papers

math.RT2026

Duality functors for Coulomb branches I

Sabin Cautis, Eric Vasserot

To a quiver of finite type one can associate two abelian categories: the category of finite dimensional modules over the corresponding affine quiver Hecke algebra and the Coulomb c…

math.AG2026

Hecke operators on symplectic surfaces and -independence

Ben Davison, Lucien Hennecart, Tasuki Kinjo +2

We prove Toda's chi-independence conjecture for the BPS cohomology of moduli spaces of one-dimensional sheaves on quasi-projective symplectic surfaces, relative to the Chow variety…

math.AG2026

Cohomological Hall algebras of one-dimensional sheaves on surfaces and Yangians

Duiliu-Emanuel Diaconescu, Mauro Porta, Francesco Sala +2

This paper provides the first algebraic characterization of an algebra of cohomological Hecke operators associated with modifications of coherent sheaves on a smooth surface al…

math.RT2025

On the geometric Satake equivalence for Kac-Moody groups

Alexis Bouthier, Eric Vasserot

This article establishes a geometric Satake equivalence for affine Kac-Moody groups as an equivalence of abelian semisimple categories over algebraically closed fields. We define a…

math.RT2025

Representations of shifted affine quantum groups and Coulomb branches

Michela Varagnolo, Eric Vasserot

We compare the integral category O of shifted affine quantum groups of symmetric and non symmetric types. To do so we compute the K-theoretic analog of the Coulomb branches with sy…

math.AG2025

Nilpotent cohomological Hall algebras of surfaces

Duiliu-Emanuel Diaconescu, Mauro Porta, Francesco Sala +2

This paper develops a framework for systematically studying cohomological "Hecke operators" associated with modifications of coherent sheaves on a smooth surface along a fixed…