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Beibei Liu, Max Planck Institute / Georgia Tech, The four-ball genus of links via the Heegaard Floer homology

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October 21 | 2:00 pm - 3:00 pm EDT

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The Heegaard Floer homology introduced by Ozsvath and Szabo provides a lot of link invariants to study links in the three-sphere and its surgery manifolds. In this talk, we exact some invariants from the package to give bounds for the four-ball genus of links in the three-sphere. We also give a family of links where the bound is sharp.

Host: Tye Lidman

Instructions to join: Zoom invitation is sent to the geometry and topology seminar list. If you are not on the list, please, contact the host to get the link.



October 21

2:00 pm - 3:00 pm
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