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math.CO2019★ 16 cited
Curvatures, graph products and Ricci flatness
David Cushing, Supanat Kamtue, Riikka Kangaslampi +2
In this paper, we compare Ollivier Ricci curvature and Bakry-Émery curvature notions on combinatorial graphs and discuss connections to various types of Ricci flatness. We show tha…
math.CO2019
Quartic graphs which are Bakry-Émery curvature sharp
David Cushing, Supanat Kamtue, Norbert Peyerimhoff +1
We give a classification of all connected quartic graphs which are (infinity) curvature sharp in all vertices with respect to Bakry-Émery curvature. The result is based on a comput…