Weak Poincaré Inequalities in the Absence of Spectral Gaps
Weak Poincaré Inequalities in the Absence of Spectral Gaps
复制标题
没有谱间隙时的弱庞加莱不等式
DOI:
10.1007/s00023-019-00858-4
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Ben-Artzi J
中科院分区:
文献类型:
--
作者:
Ben-Artzi J
For generators of Markov semigroups which lack a spectral gap, it is shown how bounds on the density of states near zero lead to a so-called weak Poincaré inequality (WPI), originally introduced by Liggett (Ann Probab 19(3):935–959, 1991). Applications to general classes of constant coefficient pseudodifferential operators are studied. Particular examples are the heat semigroup and the semigroup generated by the fractional Laplacian in the whole space, where the optimal decay rates are recovered. Moreover, the classical Nash inequality appears as a special case of the WPI for the heat semigroup.
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DOI:
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发表时间:
1999
期刊:
影响因子:
--
作者:
L. Bertini;B. Zegarlinski
通讯作者:
B. Zegarlinski
影响因子:
1.3
作者:
N. Cancrini;F. Martinelli
通讯作者:
F. Martinelli
DOI:
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发表时间:
2009
期刊:
影响因子:
--
作者:
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通讯作者:
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DOI:
10.1214/10-aihp375
发表时间:
2009-02
期刊:
arXiv: Probability
影响因子:
--
作者:
J. Mourrat
通讯作者:
J. Mourrat
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
S. Bobkov
通讯作者:
S. Bobkov