Khovanov homology and the s-invariant
Khovanov homology and the s-invariant
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Robert Lipshitz, Minerva Distinguished Visitor & University of Oregon
Fine Hall 314
Livestream: https://youtube.com/live/bf-tw4BQu-Y
This talk is where the work begins. We will start by recalling the Jones polynomial of a knot, then explain its refinement to a chain complex, the Khovanov complex. We will then explain a variant of that construction that gives a number, Rasmussen’s s-invariant.