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Universal Journal of Mathematics and Mathematical Sciences

Universal Journal of Mathematics and Mathematical Sciences
Volume 2, Issue 1, Pages 95 - 102 (July 2012)

ON THE CONDITIONS OF OSCILLATION OF FIRST ORDER NONLINEAR FUNCTIONAL DIFFERENTIAL EQUATIONS

Zeng Qingwu

Abstract:

We discuss the oscillations of first order nonlinear functional differential equations and obtain the conditions that ensure all solutions oscillate. These conditions are necessary and sufficient when the coefficient function reduces to a constant.

Keywords and phrases:

first order nonlinear neutral equations, solutions, oscillations.

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