Singular Soergel Bimodules

Tue, 27/01/2009
17:00
Geordie Williamson (Oxford) Algebra Seminar Add to calendar L2
To any Coxeter group (W,S) together with an appropriate representation on V one may associate various categories of "singular Soergel bimodules", which are certain bimodules over invariant subrings of regular functions on V. I will discuss their definition, basic properties and explain how they categorify the associated Hecke algebras and their parabolic modules. I will also outline a motivation coming from geometry and (if time permits) an application in knot theory.