19.11.2025, 13:00 Uhr
– Haus 9, Raum 2.22
Forschungsseminar Diskrete Spektraltheorie
Calculus of variations for nonlocal Sobolev–Bregman forms
Artur Rutkowski
Xueping Huang (Nanjing University)
Abstract: We consider the discrete analogue of semi-linear differential inequalities on weighted graphs. Under some technical conditions, we obtain almost sharp volume growth criteria for the non-existence of positive solutions. Two effective approaches to this problem will be discussed: one via test functions and another via potential theory.
This talk is based on joint work with Qingsong Gu and Yuhua Sun.