Some spectral comparison results on infinite quantum graphs

Author:

Bifulco P.1ORCID,Kerner J.1ORCID

Affiliation:

1. Department of Mathematics and Computer Science, FernUniversität in Hagen , 58084 Hagen, Germany

Abstract

In this paper we establish spectral comparison results for Schrödinger operators on a certain class of infinite quantum graphs, using recent results obtained in the finite setting. We also show that new features do appear on infinite quantum graphs such as a modified local Weyl law. In this sense, we regard this paper as a starting point for a more thorough investigation of spectral comparison results on more general infinite metric graphs.

Funder

Deutsche Forschungsgemeinschaft

Publisher

AIP Publishing

Reference34 articles.

1. An elementary introduction to quantum graphs;Geom. Comput. Spectral Theory,2017

2. D. Mugnolo , “What is actually a metric graph?,” arXiv:1912.07549 (2019).

3. Spectral theory of semibounded Sturm–Liouville operators with local interactions on a discrete set;J. Math. Phys.,2010

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