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检索条件"主题词=Hypercontractivity"
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hypercontractivity and Absolute Continuity of Gaussian Generalized Mehler Semigroups in Hilbert Spaces
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Acta Mathematicae Applicatae Sinica 2006年 第1期22卷 91-102页
作者: Guo-lie Lan Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing 100080 China Graduate School of the Chinese Academy of Sciences Beijing 100049 China
In this paper, we prove the hypercontra,ctivity of a non-differentiable Gaussian generalized Mehler semigroup using direct probabilistic argumcents, This result implics the exponential convergence of the scmigroup at ... 详细信息
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The Equivalence of hypercontractivity and Logarithmic Sobolev Inequality for q(-1≤q≤1)-Ornstein-Uhlenbeck Semigroup
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Chinese Annals of Mathematics,Series B 2020年 第4期41卷 615-626页
作者: Lunchuan ZHANG School of Mathematics Renmin University of ChinaBeijing 100086China
In this paper the author proves the equivalence of hypercontractivity and logarithmic Sobolev inequality for q-Ornstein-Uhlenbeck semigroup Ut(q)=Γq(e-tI)(-1≤q≤1),whereΓq is a q-Gaussian functor.
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JOINT HOLDER CONTINUITY OF PARABOLIC ANDERSON MODEL
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Acta Mathematica Scientia 2019年 第3期39卷 764-780页
作者: Yaozhong HU Khoa Lê Department of Mathematical and Statistical Sciences University of Alberta Department of Mathematics South Kensington Campus Imperial College London
We obtain the H?lder continuity and joint H?lder continuity in space and time for the random field solution to the parabolic Anderson equation ■ in d-dimensional space, where ■ is a mean zero Gaussian noise with tem... 详细信息
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SOME RECENT PROGRESS ON STOCHASTIC HEAT EQUATIONS
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Acta Mathematica Scientia 2019年 第3期39卷 874-914页
作者: Yaozhong HU Department of Mathematical and Statistical Sciences University of Alberta
This article attempts to give a short survey of recent progress on a class of elementary stochastic partial differential equations (for example, stochastic heat equations) driven by Gaussian noise of various covarianc... 详细信息
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