SPECTRA OF SELF-ADJOINT EXTENSIONS AND APPLICATIONS TO SOLVABLE SCHRÖDINGER OPERATORS

Author:

BRÜNING JOCHEN1,GEYLER VLADIMIR12,PANKRASHKIN KONSTANTIN13

Affiliation:

1. Institut für Mathematik, Humboldt-Universität zu Berlin, Rudower Chaussee 25, 12489 Berlin, Germany

2. Mathematical Faculty, Mordovian State University, 430000 Saransk, Russia

3. Département de Mathématiques, Université Paris Nord, 99 av. J.-B. Clément, 93430 Villetaneuse, France

Abstract

We give a self-contained presentation of the theory of self-adjoint extensions using the technique of boundary triples. A description of the spectra of self-adjoint extensions in terms of the corresponding Krein maps (Weyl functions) is given. Applications include quantum graphs, point interactions, hybrid spaces and singular perturbations.

Publisher

World Scientific Pub Co Pte Lt

Subject

Mathematical Physics,Statistical and Nonlinear Physics

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