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arXiv 1405.3121math.APmath.FA
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关于调制空间中带势的薛定谔方程

On the Schrödinger equation with potential in modulation spaces

Elena Cordero, Fabio Nicola

摘要:

本文研究了二次和次二次哈密顿量受位势扰动的薛定谔方程。特别是,我们将集中在有界的,但不一定光滑扰动。我们将把这种演化表示为一类调制空间中的亚代数算子和一类具有符号的伪微分算子的合成。关于奇点的奇性传播,我们使用了一个新的概念,波前集,它允许在我们的上下文中的传播的最佳结果的表达式。为了支持这一主张,许多与现有文献的比较进行这项工作。

英文摘要:

This work deals with Schrödinger equations with quadratic and sub-quadratic Hamiltonians perturbed by a potential. In particular we shall focus on bounded, but not necessarily smooth perturbations. We shall give a representation of such evolution as the composition of a metaplectic operator and a pseudodifferential operator having symbol in certain classes of modulation spaces. About propagation of singularities, we use a new notion of wave front set, which allows the expression of optimal results of propagation in our context. To support this claim, many comparisons with the existing literature are performed in this work.

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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