2016/12/12 by Alp Arslan Kıraç, Kiraç, Alp Arslan
Mathematics · Social Sciences · #Advanced Mathematical Theories #Advanced Mathematical Identities #Religion and Sociopolitical Dynamics in Nigeria
paper · pdf · doi:10.48550/arxiv.1612.03622
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.