A Homotopical Invariant of Weinstein Surfaces
Organizers
Speaker
Shanon Rubin
Time
Friday, May 23, 2025 3:30 PM - 4:30 PM
Venue
Shuangqing-B627
Abstract
We construct explicit models for the homotopy limits of diagrams of microlocal sheaf categories which arise from Weinstein surfaces with arboreal skeleta. This is done by characterizing all relevant Reedy model structures on the categories of diagrams that we care about. We prove invariance using a complete set of moves for Weinstein homotopies in this setting. Finally we give combinatorial presentations of the invariant for all topological surfaces.