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arXiv math/0005011math.SPmath.DG
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一阶系统对称线性关系的本质自伴性

Essential self-adjointness of symmetric linear relations associated to first order systems

Matthias Lesch

摘要:

本说明的目的是提出基本自伴性的几个标准。该方法是基于思想由于舒宾。本说明分为两部分。第一部分涉及对称的一阶系统的最一般的设置。这样一个对称的一阶微分方程系统在希尔伯特空间中自然地产生一个对称的线性关系。在这种情况下,甚至正则性也是非平凡的。我们将宣布一个正则性结果,并讨论这类系统的本质自伴性的准则。这部分是基于与马克·马拉默德的合作。详情将在其他地方公布。在第二部分中,我们考虑一个完备的黎曼流形$M$和一个作用在厄米向量丛$E,F$的截面之间的一阶微分算子$D:\cinfz{E}\to \cinfz{F}$。此外,设$V:\cinf{E}\to L^{\infty}_{\loc}(E)$是自伴零阶微分算子.给出了薛定谔算子$H=D^tD+V$本质自伴的一个充分条件.这推广了I.奥莱尼克\cite{Ole:ESA,Ole:CCQ,Ole:ESAG},M. Shubin \cite{Shu:CQC,Shu:ESA}和M.布雷弗曼\cite{Bra:SAS}。

英文摘要:

The purpose of this note is to present several criteria for essential self-adjointness. The method is based on ideas due to Shubin. This note is divided into two parts. The first part deals with symmetric first order systems on the line in the most general setting. Such a symmetric first order system of differential equations gives rise naturally to a symmetric linear relation in a Hilbert space. In this case even regularity is nontrivial. We will announce a regularity result and discuss criteria for essential self-adjointness of such systems. This part is based on joint work with Mark Malamud. Details will be published elsewhere. In the second part we consider a complete Riemannian manifold, $M$, and a first order differential operator, $D:\cinfz{E}\to \cinfz{F}$, acting between sections of the hermitian vector bundles $E,F$. Moreover, let $V:\cinf{E}\to L^{\infty}_{\loc}(E)$ be a self-adjoint zero order differential operator. We give a sufficient condition for the Schrödinger operator $H=D^tD+V$ to be essentially self-adjoint. This generalizes recent work of I. Oleinik \cite{Ole:ESA,Ole:CCQ,Ole:ESAG}, M. Shubin \cite{Shu:CQC,Shu:ESA}, and M. Braverman \cite{Bra:SAS}.

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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