English

Inverse resonance problems for the Schroedinger operator on the real line with mixed given data

Mathematical Physics 2018-01-26 v2 math.MP

Abstract

In this work, we study inverse resonance problems for the Schr\"odinger operator on the real line with the potential supported in [0,1][0,1]. In general, all eigenvalues and resonances can not uniquely determine the potential. (i) It is shown that if the potential is known a priori on [0,1/2][0,1/2], then the unique recovery of the potential on the whole interval from all eigenvalues and resonances is valid. (ii) If the potential is known a priori on [0,a][0,a], then for the case a>1/2a>1/2, infinitely many eigenvalues and resonances can be missing for the unique determination of the potential, and for the case a<1/2a<1/2, all eigenvalues and resonances plus a part of so-called sign-set can uniquely determine the potential. (iii) It is also shown that all eigenvalues and resonances, together with a set of logarithmic derivative values of eigenfunctions and wave-functions at 1/21/2, can uniquely determine the potential.

Keywords

Cite

@article{arxiv.1703.01708,
  title  = {Inverse resonance problems for the Schroedinger operator on the real line with mixed given data},
  author = {Xiao-Chuan Xu and Chuan-Fu Yang},
  journal= {arXiv preprint arXiv:1703.01708},
  year   = {2018}
}

Comments

12 pages

R2 v1 2026-06-22T18:36:20.067Z