19.11.2025, 13:00 Uhr
– Haus 9, Raum 2.22
Forschungsseminar Diskrete Spektraltheorie
Calculus of variations for nonlocal Sobolev–Bregman forms
Artur Rutkowski
Fernando Lledo (University Carlos III de Madrid)
In the present talk I will briefly review certain aspects of the dichotomy amenable/paradoxical in the category of metric spaces and inverse semigroups. Then I will address the question of defining a reasonable metric structure on a discrete inverse semigroup and study the properties of its uniform Roe algebra like Foelner type conditions, nuclearity or exactness.