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- W2956229832 abstract "We study a modified notion of Ollivier's coarse Ricci curvature on graphs introduced by Lin, Lu, and Yau in [11]. We establish a rigidity theorem for complete graphs that shows a connected finite simple graph is complete if and only if the Ricci curvature is strictly greater than one. We then derive explicit Ricci curvature formulas for strongly regular graphs in terms of the graph parameters and the size of a maximal matching in the core neighborhood. As a consequence we are able to derive exact Ricci curvature formulas for strongly regular graphs of girth 4 and 5 using elementary methods. An example is provided that shows there is no exact formula for the Ricci curvature for strongly regular graphs of girth $3$ that is purely in terms of graph parameters." @default.
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- W2956229832 date "2020-11-20" @default.
- W2956229832 modified "2023-09-26" @default.
- W2956229832 title "Condensed Ricci curvature of complete and strongly regular graphs" @default.
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- W2956229832 doi "https://doi.org/10.2140/involve.2020.13.559" @default.
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