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Solution of a nonlocal problem for hyperbolic equations with piecewise constant argument of generalized type

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  • Assanova, Anar T.
  • Uteshova, Roza

Abstract

This paper proposes an effective method for solving a nonlocal problem for a system of second-order hyperbolic equations with piecewise constant time argument of generalized type. The method is based on the introduction of functional parameters that are set as the values of the desired solution along the lines of the domain partition with respect to the time variable. With the aid of the functional parameters and new unknown functions, the considered problem is reduced to an equivalent problem for a system of hyperbolic equations with data on the interior partition lines and functional relations with respect to the introduced parameters. We have developed a two-stage procedure to approximately solve the latter problem: firstly, we solve an initial-value problem for a system of differential equations in functional parameters; then, we solve a problem for a system of hyperbolic equations in new unknown functions with data on the interior partition lines. We have obtained some conditions for the convergence of approximate solutions to the exact solution of the problem under study in terms of input data and proved that these conditions guarantee the existence of a unique solution of the equivalent problem. Finally, we have established coefficient conditions for the unique solvability of the nonlocal problem.

Suggested Citation

  • Assanova, Anar T. & Uteshova, Roza, 2022. "Solution of a nonlocal problem for hyperbolic equations with piecewise constant argument of generalized type," Chaos, Solitons & Fractals, Elsevier, vol. 165(P2).
    • Handle: RePEc:eee:chsofr:v:165:y:2022:i:p2:s096007792200995x
    DOI: 10.1016/j.chaos.2022.112816
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    References listed on IDEAS

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    1. S. M. Shah & Joseph Wiener, 1983. "Advanced differential equations with piecewise constant argument deviations," International Journal of Mathematics and Mathematical Sciences, Hindawi, vol. 6, pages 1-33, January.
    2. Assanova, Anar T. & Uteshova, Roza E., 2021. "A singular boundary value problem for evolution equations of hyperbolic type," Chaos, Solitons & Fractals, Elsevier, vol. 143(C).
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