A note on Ambarzumian's theorem for quantum graphs
arXiv:2308.10881 · doi:10.1007/s00013-024-01997-9
Abstract
Based on the main result presented in a recent paper, we derive Ambarzumian-type theorems for Schrödinger operators defined on quantum graphs. We recover existing results such as the classical theorem by Ambarzumian and establish some seemingly new statements, too.
arXiv comment5 pages, comments welcome!