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arXiv 1504.04124math.AP
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非齐次Landau方程的Cauchy问题和指数稳定性

Cauchy problem and exponential stability for the inhomogeneous Landau equation

Kleber Carrapatoso, Isabelle Tristani, Kung-Chien Wu

摘要:

本文讨论了在硬势、麦克斯韦势和中等软势情况下环面上的非齐次朗道方程。我们首先调查的线性化方程,我们证明相关的半群的指数衰减估计。然后,我们转向非线性方程,我们使用线性化的半群衰变,以构建一个接近平衡设置的解决方案。最后,我们证明了这样的解决方案的指数稳定性,与我们想要的最佳速率接近的半群衰变。

英文摘要:

This work deals with the inhomogeneous Landau equation on the torus in the cases of hard, maxwellian and moderately soft potentials. We first investigate the linearized equation and we prove exponential decay estimates for the associated semigroup. We then turn to the nonlinear equation and we use the linearized semigroup decay in order to construct solutions in a close-to-equilibrium setting. Finally, we prove a exponential stability for such a solution, with a rate as close as we want to the optimal rate given by the semigroup decay.

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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