The Khovanov stable homotopy type
The Khovanov stable homotopy type
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Robert Lipshitz, Minerva Distinguished Visitor & University of Oregon
Fine Hall 314
Livestream: https://youtube.com/live/2BQznkXWPko
The Khovanov stable homotopy type is a refinement of Khovanov homology. It takes the form of a CW complex (or CW spectrum) with one cell per generator of the Khovanov complex. There are two constructions: the original one (with Sarkar) in terms of flow categories, and a streamlined version (with Lawson and Sarkar) using an intermediate category of matrices of sets. In this lecture, we will give that streamlined construction (omitting a few proofs).