English

A note on Ambarzumian's theorem for quantum graphs

Spectral Theory 2024-05-07 v1 Mathematical Physics math.MP

Abstract

Based on the main result presented in a recent paper, we derive Ambarzumian-type theorems for Schr\"odinger operators defined on quantum graphs. We recover existing results such as the classical theorem by Ambarzumian and establish some seemingly new statements, too.

Keywords

Cite

@article{arxiv.2308.10881,
  title  = {A note on Ambarzumian's theorem for quantum graphs},
  author = {Patrizio Bifulco and Joachim Kerner},
  journal= {arXiv preprint arXiv:2308.10881},
  year   = {2024}
}

Comments

5 pages, comments welcome!

R2 v1 2026-06-28T12:00:40.853Z