Contributor info: Prof. Michel Rausch de Traubenberg

Idrish Huet, Michel Rausch de Traubenberg, Christian Schubert

SciPost Phys. Proc. 14, 031 (2023) · published 24 November 2023 | Toggle abstract · pdf

It is well-known that the symmetry group of a Feynman diagram can give important information on possible strategies for its evaluation, and the mathematical objects that will be involved. Motivated by ongoing work on multi-loop multi-photon amplitudes in quantum electrodynamics, here I will discuss the usefulness of introducing a polynomial basis of invariants of the symmetry group of a diagram in Feynman-Schwinger parameter space.

Rutwig Campoamor-Stursberg, Marc de Montigny, Michel Rausch de Traubenberg

SciPost Phys. Proc. 14, 022 (2023) · published 23 November 2023 | Toggle abstract · pdf

We report on recent work concerning a new type of generalised Kac-Moody algebras based on the spaces of differentiable mappings from compact manifolds or homogeneous spaces onto compact Lie groups.

Rutwig Campoamor-Stursberg, Marc de Montigny, Michel Rausch de Traubenberg, Mauricio Valenzuela

SciPost Phys. Proc. 14, 001 (2023) · published 23 November 2023 | Toggle abstract · pdf

Introduction to the proceedings of the 34th International Colloquium on Group Theoretical Methods in Physics.