Boundary Value Problem with Retarded Argument and a Finite Number of Transmission Conditions

  • M. M. TharwatEmail author
Research paper
Part of the following topical collections:
  1. Mathematics


In the present paper, our boundary value problem is Sturm–Liouville problem with retarded argument and transmission conditions at the finitely many points of discontinuity. This is the first work containing several points of discontinuity in the theory of differential equations with retarded argument. The main purpose of this paper is to obtain asymptotic formulas for the eigenvalues and corresponding eigenfunctions of this boundary value problem. The simplicity of the eigenvalues is proved. In special case when our problem with retarded argument and transmission conditions at one point of discontinuity, the obtained results coincide with the corresponding results in Bayramov et al. (Appl Math Comput 191, 592–600, 2007).


Sturm–Liouville problem Retarded argument Transmission conditions Discontinuous boundary value problems Asymptotic of eigenvalues 

Mathematics Subject Classification

34L16 94A20 65L15. 


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Copyright information

© Shiraz University 2018

Authors and Affiliations

  1. 1.Department of Mathematics and Computer Science, Faculty of ScienceBeni-Suef UniversityBeni-SuefEgypt

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