Two-component L-space links, satellite and the tau-invariant

Series
Geometry Topology Seminar
Time
Monday, April 7, 2025 - 2:00pm for 1 hour (actually 50 minutes)
Location
Skiles 006
Speaker
Daren Chen – CalTech
Organizer
Jennifer Hom

A result by Ozsvath and Szabo states that the knot Floer complex of an L-space knot is a staircase. In this talk, we will discuss a similar result for two-component L-space links: the link Floer complex of such links can be thought of as an array of staircases. We will describe an algorithm to extract this array directly from the H-function of the link. As an application, we will discuss how to use this and the link surgery formula to compute the knot Floer complex and the tau-invariant of a certain class of satellite knots. This is joint work with Ian Zemke and Hugo Zhou.