Departmental Colloquium
Catharina Stroppel
University of Bonn
Categorification of fractions via Euler characteristics
Abstract: In this talk I will explain the main idea, motivation and a few
consequences of the concept of categorification. All this will be
illustrated by an example coming from knot theory and low dimensional
topology. It turns out that often invariants of knots or links and
3-manifols are given by certain rational numbers which would like to be
categorified, or interpreted as an Euler characteristics of some
complex. The first steps of a possible answer will be explained.
The concept behind this is very general and uses ideas appearing in
representation theory and algebraic geometry.
Friday March 2, 2012 at 3:00 PM in SEO 636