Combinatorial Dyson-Schwinger equations in tensorial field theory
Basic data for this talk
Type of talk: scientific Talk
Name der Vortragenden: Thürigen, Johannes
Date of talk: 17/11/2021
Talk language: English
URL of slides: https://www.esi.ac.at/events/t543/
Information about the event
Name of the event: Higher structures emerging from renormalisation
Event period: 15/11/2021 - 19/11/2021
Event location: Erwin Schrödinger Institute, Vienna, Austria
Event website: https://web.math.uni-potsdam.de/viennaconference2021/
Abstract
Perturbative renormalization in local quantum field theory is described mathematically by the Connes-Kreimer Hopf algebra of Feynman diagrams. This algebra generalizes from usual graphs to ``strand graphs'', the combinatorial objects underlying a broad class of non-local theories, in particular tensorial field theory. As a consequence one can identify Hochschild 1-cocycles and describe the non-perturbative regime of such theories in terms of combinatorial Dyson-Schwinger equations.Speakers from the University of Münster
| Thürigen, Johannes |
Publications referred to in the talk
Thürigen, J (2021) In: Symmetry, Integrability and Geometry: Methods and Applications, 17, 094. doi:10.3842/SIGMA.2021.094 Research article (journal) | Peer reviewed | Published |