In this paper we will study the criteria for oscillation of the equation[a(t)(z"(t))]' +\sum_j=1^m fj(t; x(j(t))) = 0and establish new oscillation criteria some examples of the obtained results are given.Our technique is Riccati's method.Keywords: Oscillation, Third order, Nonlinear equation, Neutral type.
Author Biography
A.M. Hassan, Faculty of science , Benha University ,Egypt
