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On the size of planar graphs with positive Lin-Lu-Yau Ricci curvature

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 نشر من قبل Linyuan Lu
 تاريخ النشر 2020
  مجال البحث
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We show that if a planar graph $G$ with minimum degree at least $3$ has positive Lin-Lu-Yau Ricci curvature on every edge, then $Delta(G)leq 17$, which then implies that $G$ is finite. This is an analogue of a result of DeVos and Mohar [{em Trans. Amer. Math. Soc., 2007}] on the size of planar graphs with positive combinatorial curvature.

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