English

Three quick recipes with fully extended oriented 2d TQFTs

Mathematical Physics 2024-11-12 v4 Category Theory math.MP Quantum Algebra Representation Theory

Abstract

It always happens: you have a talk for dinner and nothing prepared. Your signature dish never fails, but you have served it too many times already and you'd like to surprise your guests with something new. Try these quick, light and colourful reinterpretations of haute cuisine classics, like (nonabelian) Fourier transforms and the Plancherel theorem for finite groups.

Cite

@article{arxiv.2007.07215,
  title  = {Three quick recipes with fully extended oriented 2d TQFTs},
  author = {Domenico Fiorenza},
  journal= {arXiv preprint arXiv:2007.07215},
  year   = {2024}
}

Comments

Notes for a talk to be given somewhere. v4: a little more material added on group characters

R2 v1 2026-06-23T17:07:05.944Z