A Sears-type self-adjointness result for discrete magnetic Schrödinger operators

Document Type

Article

Publication Date

12-15-2012

Subject Area

ARRAY(0x55a43e5c0408)

Abstract

In the context of a weighted graph with vertex set V and bounded vertex degree, we give a sufficient condition for the essential self-adjointness of the operator δ σ+W, where δ σ is the magnetic Laplacian and W:V→R is a function satisfying W(x)≥-q(x) for all x∈V, with q:V→[1, ∞). The condition is expressed in terms of completeness of a metric that depends on q and the weights of the graph. The main result is a discrete analogue of the results of I. Oleinik and M.A. Shubin in the setting of non-compact Riemannian manifolds. © 2012 Elsevier Ltd.

Publication Title

Journal of Mathematical Analysis and Applications

Volume

396

Issue

2

First Page

801

Last Page

809

Digital Object Identifier (DOI)

10.1016/j.jmaa.2012.07.028

ISSN

0022247X

E-ISSN

10960813

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