Sabin Cautis
University of British Columbia
Scientific, Colloquia
PIMS Scientific Session
12:30 - 1:30 PM: Lunch/Coffee/Tea/Snacks 1:30 - 1:35: Opening Remarks 1:35 - 1:50: Jonathan Hermon A simple characterization of the effective resistance metric on vertex transitive graphs The effective resistance satisfies the triangle inequality and...
Scientific, Seminar
Algebraic Geometry Seminar: Sabin Cautis (Columbia University)
I will describe an action of a quantized Heisenberg algebra on the (derived) categories of coherent sheaves on Hilbert schemes of ALE spaces (crepant resolutions of C^2/G). This action essentially lifts the actions of Nakajima and Grojnowski on the...
Scientific, Seminar
Special Algebraic Geometry Seminar/Topology and Related Seminars: Sabin Cautis, Columbia University
Abstract: Stratified flops show up in the birational geometry of symplectic varieties such as moduli spaces of sheaves. Varieties related by such flops are often derived equivalent (meaning that there is an equivalence between their derived...
Scientific, Seminar
UBC Math Department Colloquium: Sabin Cautis
The affine Grassmannian, though a somewhat esoteric looking object at first sight, is a fundamental algebro-geometric construction lying at the heart of a series of ideas connecting number theory (and the Langlands program) to geometric...