01:12:56
published on June 11, 2026
On actions of braid groups on triangulated categories arising in cluster theory
By Bernhard Keller
![[1956] L’énergie des gaz de bosons dilués](/media/cache/video_light/uploads/video/SeminaireBourbaki.png)
Combinatorics of Feynman integrals
Appears in collection : Algebraic combinatorics, resurgence, moulds and applications / Combinatoire algébrique, résurgence, moules et applications
Very recently, David Roberts and I have discovered wonderful conditions imposed on Feynman integrals by Betti and de Rham homology. In decoding the corresponding matrices, we encounter asymptotic expansions of a refined nature. In making sense of these, we appear to have some refuge in resurgence.
