Every Salami has two ends

06.11.2024, 13:00  –  Haus 9, Raum 0.17 und Zoom
Forschungsseminar Diskrete Spektraltheorie

Florentin Münch (Universität Leipzig)

Abstract: In this talk, we prove that every salami has exactly two ends. As is well known to experts, a salami is a weighted graph with non-negative Ollivier Ricci curvature with at least two ends of infinite mass. As an application we show a discrete positive mass theorem. The key idea is based on a non-linear heat flow for which we provide long-term convergence results in a general framework. The talk is based on joint works with Bobo Hua, Ruowei Li and Haohang Zhang.