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arXiv 1704.04436math.APmath-phmath.MPmath.SP
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解的预解式和次指数时间衰减的Gevrey估计

Gevrey estimates of the resolvent and sub-exponential time-decay of solutions

Xue Ping Wang

摘要:

本文研究一类非自伴Schr{<$}dinger算子H,它是某个模型算子H 0的扰动,满足加权强制性假设.对于模型算子H 0,我们证明了预解式的导数在阈值为零时满足Gevrey估计.作为应用,我们建立了半群e-tH和e-itH(t > 0)的大时间展开式,其馀项具有次指数时间衰减估计,包括可能存在的零特征值和实共振.

英文摘要:

In this article, we study a class of non-selfadjoint Schr{ö}dinger operators H which are perturbation of some model operator H 0 satisfying a weighted coercive assumption. For the model operator H 0 , we prove that the derivatives of the resolvent satisfy some Gevrey estimates at threshold zero. As application, we establish large time expansions of semigroups e --tH and e --itH for t > 0 with subexponential time-decay estimates on the remainder, including possible presence of zero eigenvalue and real resonances.

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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