วันพุธที่ 16 สิงหาคม 2566 เวลา 15.00 - 16.30 น. เรามีนัดสัมมนาทางวิชาการกัน ณ ห้อง 608/5 ชั้น 15 ควบคู่กับ Facebook Live

"Introduction to Ricci curvature on discrete spaces"

by Dr. Supanat Kamtue

Postdoctoral researcher at Yau Mathematical Sciences Center, Tsinghua University, Beijing, China

Abstract: This talk is an overview on three different Ricci curvature notions defined on graphs, namely Ollivier-Ricci curvature, Baky-Emery curvature and Entropic Ricci curvature. I will talk about their motivations from Riemannian geometry and optimal transport theory. I will then review some geometric properties on manifolds related to Ricci curvature (for instance, Cheeger constant, spectral gap and diameter bound) and discuss their discrete analogues on graphs.