English

Completeness of eigenfunctions of Sturm-Liouville problems with discontinuities at three points

Functional Analysis 2012-02-28 v2 Classical Analysis and ODEs

Abstract

In this work, we study discontinuous Sturm-Liouville type problems with eigenparameter dependent boundary condition and transmission conditions at three interior points. A self-adjoint linear operator A is defined in a suitable Hilbert space H such that the eigenvalues of such a problem coincide with those of A. We show that the eigenvalues of the problem are analytically simple, and the eigenfunctions of A are complete in H.

Keywords

Cite

@article{arxiv.1202.4858,
  title  = {Completeness of eigenfunctions of Sturm-Liouville problems with discontinuities at three points},
  author = {Erdoğan Şen},
  journal= {arXiv preprint arXiv:1202.4858},
  year   = {2012}
}

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15 pages