Dear Topologists,
Today in seminar we have Allison Moore speaking.
The zoom link is the same as usual:
Topic: Okstate Topology Seminar
Time: This is a recurring meeting Meet anytime
Join Zoom Meeting
https://zoom.us/j/94529451960?pwd=ekkxYUsrRGt5bVdEQWJRN0JOZ04wZz09
Meeting ID: 945 2945 1960
Passcode: JSJDecomp
Her title and abstract are here:
Title: Conway spheres and immersed curves
Speaker: Allison Moore, Virginia Commonwealth University Date: Nov 9, 2021
Time: 3:00 PM (4PM eastern)
Room: Virtual
Abstract: A tangle decomposition along a Conway sphere breaks a knot or link into simpler pieces, each of which is a two-string tangle. In this talk, we’ll discuss how Heegaard Floer and Khovanov homologies can be approached and calculated using tangle
decompositions. In both cases, the algebraic invariants can be realized geometrically as immersed curves on the four-punctured sphere. This strategy turns out to be quite useful for studying L-space knots and investigating two classic open problems: the cosmetic
surgery conjecture and the cosmetic crossing conjecture. This is joint with Kotelskiy, Lidman, Watson and Zibrowius.
______________________
Neil R. Hoffman
Assistant Professor
Department of Mathematics
523 Math Science Building
Oklahoma State University
Stillwater, OK 74078-1058
405-744-7791