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arXiv 2008.04273math.SPmath.APmath.CV
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谱渐近与节点集的界面

Interfaces in spectral asymptotics and nodal sets

Steve Zelditch

摘要:

这在很大程度上是一个调查的结果共同获得的鲍里斯哈宁和彭周接口的谱渐近性,无论是薛定谔运营商对$L^2({\mathbb R}^d)$和托普利茨哈密顿作用于全纯部分的丰富线丛$L \to M$在凯勒流形$(M, ω)$。界面是指在物理空间${\mathbb R}^d$或相空间中的超曲面,其将谱渐近为标准的允许区域与谱渐近为非标准的禁止区域分开。主要问题是给出两种类型的渐近性在超曲面(即界面)上的详细过渡。在实薛定谔条件下,渐近性为艾里型;在凯勒条件下,渐近性为高斯误差函数(Erf)型。此外,我们还引入了正厄米线丛的Bargmann-Fock空间,并研究了在这种情况下的界面渐近性。

英文摘要:

This is largely a survey of results obtained jointly with Boris Hanin and Peng Zhou on interfaces in spectral asymptotics, both for Schrödinger operators on $L^2({\mathbb R}^d)$ and for Toeplitz Hamiltonians acting on holomorphic sections of ample line bundles $L \to M$ over Kähler manifolds $(M, ω)$. By an interface is meant a hypersurface, either in physical space ${\mathbb R}^d$ or in phase space, separating an allowed region where spectral asymptotics are standard and a forbidden region where they are non-standard. The main question is to give the detailed transition between the two types of asymptotics across the hypersurface (i.e. interface). In the real Schrödinger setting, the asymptotics are of Airy type; in the Kähler setting they are of Erf (Gaussian error function) type. In addition, we introduce the Bargmann-Fock space of a positive Hermitian line bundle and study interface asymptotics in that setting.

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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