Opuscula Math. 32, no. 4 (2012), 719-730
Oscillation behavior of second order nonlinear neutral differential equations with deviating arguments
Elmetwally M. Elabbasy
T. S. Hassan
O. Moaaz
Abstract.
Oscillation criteria are established for second order nonlinear neutral differential equations with deviating arguments of the form \[r(t)\psi(x(t))|z'(t)|^{\alpha -1} z'(t)+ \int_a^b q(t,\xi)f(x(g(t,\phi)))d\sigma (\xi) =0,\quad t\gt t_0,\] where \(\alpha \gt 0\) and \(z(t)= x(t)+p(t)x(t-\tau)\). Our results improve and extend some known results in the literature. Some illustrating examples are also provided to show the importance of our results.
Keywords:
oscillation, second order, neutral differential equations, deviating arguments.
Mathematics Subject Classification:
34C10, 34C15.
About the authors ▼
Elmetwally M. Elabbasy
Mansoura University, Department of Mathematics, Faculty of Science Mansoura, Egypt
T. S. Hassan
Mansoura University, Department of Mathematics, Faculty of Science Mansoura, Egypt
O. Moaaz
Mansoura University, Department of Mathematics, Faculty of Science Mansoura, Egypt
About the article ▼
Received: 2011-08-14.
Revised: 2012-02-08.
Accepted: 2012-02-20.
Cite this article as ▼
Elmetwally M. Elabbasy, T. S. Hassan, O. Moaaz, Oscillation behavior of second order nonlinear neutral differential equations with deviating arguments, Opuscula Math. 32, no. 4 (2012), 719-730,
http://dx.doi.org/10.7494/OpMath.2012.32.4.719.
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