Li-Yau inequality on graphs
Li-Yau inequality on graphs
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图上的 Li-Yau 不等式
DOI:
10.4310/jdg/1424880980
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发表时间:
2013-06
影响因子:
2.5
通讯作者:
Shing-Tung Yau
中科院分区:
文献类型:
--
作者:
Yong Lin;Gabor Lippner;Dan Mangoubi;Shing-Tung Yau
We prove the Li-Yau gradient estimate for the heat kernel on graphs. The only assumption is a variant of the curvature-dimension inequality, which is purely local, and can be considered as a new notion of curvature for graphs. We compute this curvature for lattices and trees and conclude that it behaves more naturally than the already existing notions of curvature. Moreover, we show that if a graph has non-negative curvature then it has polynomial volume growth.
We also derive Harnack inequalities and heat kernel bounds from the gradient estimate, and show how it can be used to strengthen the classical Buser inequality relating the spectral gap and the Cheeger constant of a graph.
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DOI:
--
发表时间:
2006
期刊:
--
影响因子:
--
作者:
L. Peter
通讯作者:
L. Peter
影响因子:
3.7
作者:
Sturm, Karl-Theodor
通讯作者:
Sturm, Karl-Theodor
DOI:
10.1090/conm/073/954626
发表时间:
1987
期刊:
--
影响因子:
--
作者:
J. Dodziuk;L. Karp
通讯作者:
J. Dodziuk;L. Karp
影响因子:
0.5
作者:
T. Coulhon;A. Grigor’yan;F. Zucca
通讯作者:
T. Coulhon;A. Grigor’yan;F. Zucca
影响因子:
1.9
作者:
P. Buser
通讯作者:
P. Buser