15 juin 2026 à 3 juillet 2026
Institut Henri Poincaré
Fuseau horaire Europe/Paris

Czenky: Cochain valued TQFTs from nonsemisimple modular tensor categories

29 juin 2026, 14:00
30m
Institut Henri Poincaré

Institut Henri Poincaré

Bâtiment Borel, 11, Rue Pierre et Marie Curie 75005 Paris

Description

Consider a finite modular tensor category A. In [DGGPR] the authors exhibit a 3-dimensional topological field theory Z_A: Bord_A -> Vect, which, in the case where A is semisimple, recovers the usual Reshetikhin-Turaev TQFT. In the present work we show that this extends naturally to a TQFT which takes values in the symmetric tensor category of linear cochains. This cochain valued theory furthermore respects (certain classes of) homotopies.

[DGGPR] M. De Renzi, A. M. Gainutdinov, N. Geer, B. Patureau-Mirand, and I. Runkel. 3-dimensional TQFTs from non-semisimple modular categories. Sel. Math. New Ser., 28(2):42, 2022.

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