Fermions and perturbation theory of strongly continuous semigroups
Martedì 27 Febbraio alle ore 15:30 presso l’Aula 3014 nell'Edificio U5, il Prof. Batu Güneysu (Technische Universität Chemnitz) terrà il seguente seminario
Title: Fermions and perturbation theory of strongly continuous semigroups
Abstract: In this talk I will explain an algebraic machinery based on Fermionic integration, which basically allows to rewrite expressions of the form
ꭍtσn e−s1HP1e−(s2−s1)HP2…e−(sn−sn−1)HPne−(t−sn)H ds1…dsn, t ≥ 0,
as strongly continuous semigroups. Here, H ≥ 0 is an unbounded selfadjoint operator and each Pj is an unbounded possibly non-selfadjoint operator. Applications to noncommutative geometry (and if time admits: loop space geometry) will also be presented.
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