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A Homotopical Invariant of Weinstein Surfaces

组织者

深谷賢治 , 高鸿灏 , 袁航

演讲者

Shanon Rubin

时间

2025年05月23日 15:30 至 16:30

地点

Shuangqing-B627

摘要

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.