Elmetwally M. Elabbasy, Taher S. Hassan, Samir H. Saker
Abstract:
Oscillation criteria are obtained for all solutions
of first-order nonlinear neutral delay differential equations.
Our results extend and improve some results well known
in the literature. Some examples are considered to
illustrate our main results.
Submitted August 2, 2005. Published November 30, 2005.
Math Subject Classifications: 34K15, 34C10.
Key Words: Oscillation; non-oscillation; neutral delay of
differential equations.
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Elmetwally M. Elabbasy Department of Mathematics Faculty of Science, Mansoura University Mansoura, 35516, Egypt email: emelabbasy@mans.edu.eg |
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Taher S. Hassan Department of Mathematics Faculty of Science, Mansoura University Mansoura, 35516, Egypt email: tshassan@mans.edu.eg |
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Samir H. Saker Department of Mathematics Faculty of Science, Mansoura University Mansoura, 35516, Egypt email: shsaker@mans.edu.eg |
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