The talk will introduce diagrammatic categorification in topology, graph theory and algebra. We describe torsion in Khovanov link homology via related chromatic homology for graphs, and define a categorification of the polynomial ring Z[x] based on a geometrically defined algebra of planar diagrams.
Geometry-Topology Seminar
Thursday, October 14, 2010 - 4:30pm
Radmila Sazdanovic
University of Pennsylvania