Seminar series
Date
Tue, 29 Oct 2019
12:00
12:00
Location
L4
Speaker
Erik Panzer
Organisation
Oxford
Feynman integrals govern the perturbative expansion in quantum field theories. As periods, these integrals generate representations of a motivic Galois group. I will explain this idea and illustrate the 'coaction principle', a mechanism that constrains which periods can appear at any loop order.