102 citations · 388 across the 40 of their papers we have counts for
5 papers · 1 filter
T-structures on dg-categories and derived deformations
Francesco Genovese, Wendy Lowen, Michel Van den Bergh
This paper is a sequel to "t-structures and twisted complexes on derived injectives" by the same authors. We develop the foundations of the infinitesimal derived deformation theory…
On cohomological and K-theoretical Hall algebras of symmetric quivers
Valery Lunts, Špela Špenko, Michel Van den Bergh
We give a brief review of the cohomological Hall algebra CoHA and the K-theoretical Hall algebra KHA associated to quivers. In the case of symmetric qui…
Catalan numbers, parking functions, permutahedra and noncommutative Hilbert schemes
Valery Lunts, Špela Špenko, Michel Van den Bergh
We find an explicit -equivariant bijection between the integral points in a certain zonotope in , combinatorially equivalent to the permutahedron, and the set of…
Non-commutative crepant resolutions, an overview
Michel Van den Bergh
Non-commutative crepant resolutions (NCCRs) are non-commutative analogues of the usual crepant resolutions that appear in algebraic geometry. In this paper we survey some results a…
On the GKZ discriminant locus
Špela Špenko, Michel Van den Bergh
Let be an integral matrix and let be the convex hull of its columns. By a result of Gelfand, Kapranov and Zelevinski, the so-called principal -determinant locus is equal…