9–11 Sept 2024
Catania
Europe/Rome timezone

Euler-Mellin-Feynman Integrals and Intersection Theory

10 Sept 2024, 11:35
40m
Villa Cerami (Catania)

Villa Cerami

Catania

Via Crociferi 91

Speaker

Pierpaolo Mastrolia (Istituto Nazionale di Fisica Nucleare)

Description

I elaborate on the vector space structures of Euler-Mellin-Feynman Integrals,
emerging from the application of Intersection Theory of (twisted) De Rahm Co-homology,
and discuss the crucial role of the intersection numbers as fundamental mathematical quantities,
ruling linear relations (integration-by-parts identities or contiguity relations, differential and difference equations),
as well as quadratic relations (Riemann bilinear relations), and higher order relations obeyed by those integrals.
I comment on the correspondence between the vector space of integrals and the D-module structure of the differential operators acting on them.
I report on the methods we introduced for evaluating intersection numbers of differential n-forms, and their application to the
direct decomposition of integrals in terms of master integrals, to be considered as the generators of the vector space.
I conclude on the applicability of these novel techniques and ideas in various areas of modern Physics and Mathematics.

Primary author

Pierpaolo Mastrolia (Istituto Nazionale di Fisica Nucleare)

Presentation materials