activity
19962025
most citedBakry-Emery curvature and diameter bounds on graphs

46 citations · 299 across the 52 of their papers we have counts for

collaborators

63 papers

math.DG2025

Horospherical mean curvature functions and D'Atri spaces

Gerhard Knieper, JeongHyeong Park, Norbert Peyerimhoff

We consider simply connected Riemannian manifolds without conjugate points for which the horospherical mean curvature function is continuous, reversible and invariant under the geo…

math.DG2025

A generalized Cheeger inequality and the Steklov Problem on finite graphs

Bobo Hua, Supanat Kamtue, Shiping Liu +2

We prove generalized Cheeger inequalities for eigenvalues of Laplacians for reversible Markov chains. Then we apply Hassannezhad and Miclo's convergence result to obtain Jammes Che…

math.SP2025

On a magneto-spectral invariant on finite graphs

Chunyang Hu, Bobo Hua, Supanat Kamtue +3

In this paper, we introduce a magneto-spectral invariant for finite graphs. This invariant vanishes on trees and is maximized by complete graphs. We compute this invariant for cycl…

math.CO2024

Polyhedral volume ratios, Izmestiev's Colin de Verdiere matrices and Spectral Gaps

Ioannis Ivrissimtzis, Carsten Lange, Shiping Liu +1

We present a relation between volumes of certain lower dimensional simplices associated to a full-dimensional primal and polar dual polytope in R^k. We then discuss an application…

math.CO2024

A note on Steinerberger's curvature for graphs

David Cushing, Supanat Kamtue, Erin Law +3

In this note, we provide Steinerberger curvature formulas for block graphs, discuss curvature relations between two graphs and the graph obtained by connecting them via a bridge, a…

math.DG2024

Entropic curvature not comparable to other curvatures -- or is it?

Supanat Kamtue, Shiping Liu, Florentin Münch +1

In this paper we consider global -curvatures of finite Markov chains with associated means in the spirit of the entropic curvature (based on the logarithmic mean) by Erbar-M…