New oscillation ciriteria of first order delay differential equations

• Autorzy: Kubiaczyk I. , Saker S. H.
• Języki publikacji: EN

Abstrakty

EN

In this paper we shall consider the first order delay differential equations with variable coefficients. Some new sufficient conditions for oscillation of all solutions are obtained. Our results based on the analysis of the generalized charachterestic equation. The results partially improve some previously known results in the literature. Some examples are considered to illustrate our main results.

Słowa kluczowe

EN

oscillation; delay differential equations

• Wydawca: De Gruyter
• Czasopismo: Demonstratio Mathematica
• Rocznik: 2002
• Tom: Vol. 35, nr 2
• Strony: 313--324
• Opis fizyczny: Bibliogr. 20 poz.

Twórcy

autor

Kubiaczyk I.

• Faculty of Mathematics and Computer Science, Adam Mickiewicz University, Matejki 48/49, 60-769 Poznan, Poland

autor

Saker S. H.

• Faculty of Mathematics and Computer Science, Adam Mickiewicz University, Matejki 48/49, 60-769 Poznan, Poland
• Mathematical Department, Faculty of Sciences, Mansoura University, Mansoura 35516, Egypt

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