Perelman’s Entropy and Doubling Property on Riemannian Manifolds
Perelman’s Entropy and Doubling Property on Riemannian Manifolds
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DOI:
10.1007/s12220-010-9180-x
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发表时间:
2009-11
影响因子:
1.1
通讯作者:
Fabrice Baudoin;N. Garofalo
中科院分区:
文献类型:
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作者:
Fabrice Baudoin;N. Garofalo
The purpose of this work is to study some monotone functionals of the heat kernel on a complete Riemannian manifold with nonnegative Ricci curvature. In particular, we show that on these manifolds, the gradient estimate of Li and Yau (Acta Math. 156, 153–201, 1986), the gradient estimate of Ni (J. Geom. Anal. 14(1), 87–100, 2004), the monotonicity of the Perelman’s entropy and the volume doubling property are all consequences of an entropy inequality recently discovered by Baudoin and Garofalo, arXiv:0904.1623 , 2009. The latter is a linearized version of a logarithmic Sobolev inequality that is due to D. Bakry and M. Ledoux (Rev. Mat. Iberoam. 22, 683–702, 2006).