English

A new Improvement of Ambarzumyan's Theorem

Spectral Theory 2016-12-13 v1

Abstract

We extend the classical Ambarzumyan's theorem to the quasi-periodic boundary value problems by using only a part knowledge of one spectrum. We also weaken slightly the Yurko's conditions on the first eigenvalue.

Keywords

Cite

@article{arxiv.1612.03622,
  title  = {A new Improvement of Ambarzumyan's Theorem},
  author = {Alp Arslan Kiraç},
  journal= {arXiv preprint arXiv:1612.03622},
  year   = {2016}
}