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Presented By: Department of Mathematics

Topology Seminar

Khovanov homology detects split links

Extending ideas of Hedden-Ni, we show that the module structure on Khovanov homology detects split links. The proof is via an analogous result for untwisted Heegaard Floer homology of the branched double cover. Along the way, we will describe an interpretation of the module structure on untwisted Heegaard Floer homology in terms of twisted Heegaard Floer homology. This is joint with Robert Lipshitz. Speaker(s): Sucharit Sarkar (UCLA)

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