On the stability and behavior of solutions in mixed differential equations with delays and advances

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YENİÇERİOĞLU A. F., YAZICI C., Pinelas S.

MATHEMATICAL METHODS IN THE APPLIED SCIENCES, vol.45, no.8, pp.4468-4496, 2022 (SCI-Expanded, Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 45 Issue: 8
  • Publication Date: 2022
  • Doi Number: 10.1002/mma.8049
  • Journal Name: MATHEMATICAL METHODS IN THE APPLIED SCIENCES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, Communication Abstracts, Compendex, INSPEC, MathSciNet, Metadex, zbMATH, Civil Engineering Abstracts
  • Page Numbers: pp.4468-4496
  • Kocaeli University Affiliated: Yes

Abstract

In this study, some new results are obtained on asymptotic behavior and stability analysis of the mixed type differential equation x'(t) = integral(0)(-1) x(t - r(1)(theta))dv(theta) + integral(0)(-1) x(t + r(2)(theta))d eta(theta), where x(t) is an element of R, r(1)(theta) and r(2)(theta) are real nonnegative continuous functions on [-1,0], and v(theta) and eta(theta) are real valued functions of bounded variation on [-1,0]. These results were obtained by using an appropriate real root of the characteristic equation. Moreover, by the use of two appropriate distinct real roots of the corresponding characteristic equation, a new result on the behavior of solutions is established. Five examples are also given to illustrate our results. We also presented the application of the obtained results in the special case of constant coefficients and have given three different cases in one example. The results obtained in this article show that real roots play an important role.