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  1. Topology and Dynamics
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  3. SumTopo
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  5. 2025

Plenary and Semi-Plenary Talks

Icon: calendar Semi-Plenary Talks #4.2 | 2025 Aug 14 from 01:00PM to 02:00PM (Central Time (US & Canada)) | HUMB 150

Subevent of Semi-Plenary Talks #4

‟Infinite Games” by Jocelyn Bell <bell@hws.edu>, Hobart and William Smith Colleges

Abstract:

Nearly a century ago, the first infinite topological game was played on the tabletops of the Scottish Cafe in Poland. Now known as the Banach-Mazur game, it appeared in Problem 43 of the Scottish Book, posed by Banach and answered by Mazur. Since then, many others have been defined. A topological game typically involves two players alternately choosing objects from a space, such as points or open sets, according to a list of rules. They have been used not only to define topological properties but also to prove results seemingly unrelated to games. In this talk, we’ll play some of these games and discuss recent results.