MMN-706

Asymptotic properties of eigenvalues and eigenfunctions of a Sturm-Liouville problem with discontinuous weight function

Abstract

In this paper, we extend some spectral properties of regular Sturm-Liouville problems to those which consist of a Sturm-Liouville equation with discontinuous weight at two interior points together with spectral parameter-dependent boundary conditions. By modifying some techniques of [C. T. Fulton, Two-point boundary value problems with eigenvalue parameter contained in the boundary conditions, Proc. Roy. Soc. Edinburgh Sect. A 77 (1977) 293-308; E. C. Titchmarsh, Eigenfunctions expansion associated with second order differential equations l, Oxford Univ. Press, London, 1962], we give an operator-theoretic formulation for the considered problem and obtain asymptotic formulas for the eigenvalues and eigenfunctions.


Vol. 15 (2014), No. 1, pp. 197-209
DOI: https://doi.org/10.18514/MMN.2014.706


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