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arXiv 2206.04492math.APmath-phmath.MPmath.SP
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一类线性Boltzmann方程的亚稳性结果

Metastability results for a class of linear Boltzmann equations

Thomas Normand

摘要:

本文考虑了具有非定域碰撞算子的半经典线性Boltzmann模型。我们提供了尖锐的光谱渐近的小光谱在低温制度,从中我们推导出的返回到平衡的速率以及亚稳态的结果。的主要成分是通过hypocotive技术和建设尖锐的高斯准模通过适应WKB方法获得的预解估计。

英文摘要:

We consider a semiclassical linear Boltzmann model with a non local collision operator. We provide sharp spectral asymptotics for the small spectrum in the low temperature regime from which we deduce the rate of return to equilibrium as well as a metastability result. The main ingredients are resolvent estimates obtained via hypocoercive techniques and the construction of sharp Gaussian quasimodes through an adaptation of the WKB method.

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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