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CMSA Freedman Seminar 9.25.26.docx

4-manifold topology and collision rank of groups

Virtual

Freedman Seminar Speaker: Slava Krushkal (University of Virginia) Title: 4-manifold topology and collision rank of groups Abstract: I will introduce collision rank and show that groups of finite collision rank […]

CMSA Member Seminar 9.25.26.docx

Member Seminar

CMSA Room G10 CMSA, 20 Garden Street, Cambridge

Member Seminar Speaker: Lorenzo Riva, CMSA Title: Un-extending extended TQFTs Abstract: An ordinary topological quantum field theory (TQFT) assigns invariants to manifolds of dimensions n in a way that is compatible with […]