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  5. 2025

Low-Dimensional Topology

Icon: calendar Low-Dimensional Session Talk #3.2 | 2025 Aug 12 from 03:00PM to 03:25PM (Central Time (US & Canada)) | HUMB 144

‟Thompson's Groups, Annular Links, and Tangles” by Louisa Liles <lml2tb@virginia.edu>, Unaffiliated

Abstract:

Vaughan Jones showed how to associate links in the $3$-sphere to elements of Thompson’s group $F$ and proved that $F$ gives rise to all link types. This talk will introduce Jones’s construction and discuss two recent extensions– the first is a method of building annular links from Thompson’s group $T$, which contains $F$ as a subgroup, and the second is a method of building $(n,n)$-tangles, which give rise to an action of $F$ on Khovanov’s chain complexes. This talk includes joint work with Slava Kruskhal and Yangxiao Luo.