Wednesday, May 22 2019, 1:30pm Boyd Room 328 Title: Invariants of tangles from the Fukaya category of the 4-punctured sphere Abstract: I will discuss a reinterpretation of Bar-Natans description of Khovanov homology in terms of immersed curves in the 4-punctured sphere. This point of view has some interesting algebraic consequences; the talk will focus on examples. This is joint work with Artem Kotelskiy and Claudius Zibrowius.
