24.05.2024, 11:00 Uhr
– Campus Golm, Building 9, Room 2.22 and via Zoom
Arbeitsgruppenseminar Analysis
Arbeitsgruppenseminar Analysis mit Stefano Ronchi
Stefano Ronchi (Göttingen)
Viet Dang Nguyen (Lyon I)
I will present an overview of results obtained with Bin Zhang (Sichuan University). We will start by giving a simple example which shows the necessity to subtract infinities in quantum field theory. Then we introduce the notion of Feynman amplitudes and study their singularities using a zeta regularization with several parameters. Finally we will apply this method to perturbative renormalization of quantum field theories on Riemannian manifolds.