Oscillation of nonlinear differential equations with advanced arguments

الملخص EN

This paper is concerned with the oscillation of all solutions of the n-th order delay differential equation x(n)(t) + P(t) f (x(r(t))) = 0, n ≥ 2 .

The necessary and sufficient conditions for oscillatory solutions are obtained and other conditions for nonoscillatory solution to converge to zero are established.