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带单调漂移的随机发展方程的Harnack不等式及其应用

Harnack Inequality and Applications for Stochastic Evolution Equations with Monotone Drifts

Wei Liu

摘要:

本文证明了一大类具有单调漂移的随机发展方程的迁移半群的无量纲Harnack不等式。作为应用,建立了相应的变迁半群的遍历性、超(或超)压缩性和紧性。此外,还得到了转移半群到不变测度的指数收敛性和谱间隙的存在性。主要结果应用于许多具体的随机发展方程,如随机反应扩散方程、随机多孔介质方程和希尔伯特空间中的随机p-Laplace方程。

英文摘要:

In this paper, the dimension-free Harnack inequality is proved for the associated transition semigroups to a large class of stochastic evolution equations with monotone drifts. As applications, the ergodicity, hyper-(or ultra-)contractivity and compactness are established for the corresponding transition semigroups. Moreover, the exponential convergence of the transition semigroups to invariant measure and the existence of a spectral gap are also derived. The main results are applied to many concrete stochastic evolution equations such as stochastic reaction-diffusion equations, stochastic porous media equations and the stochastic p-Laplace equation in Hilbert space.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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