Title: Odd Khovanov Homology Via Hyperplane Arrangements
Program: Symplectic and Contact Geometry and Connections to Low-Dimensional Topology
Speaker: Zsuzsanna Dancso, Fields Institute
Date: Thurssday, October 4, 2012
Time: 1:00pm – 2:00pm
Place: Seminar Room 313, Simons Center
Abstract: We will describe a construction of Odd Khovanov homology (isomorphic to that of Ozsvath-Rasmussen-Szabo) as a special case of a homology theory for (signed) hyperplane arrangements. Hyperplane arrangements are a combinatorial structure which include graphs and link projections as subsets. Our construction is invariant under Gale duality, which is a notion of duality generalising planar graph duality. The talk is based on joint work with Anthony Licata; arXiv: 1205.2784.