On the Oscillation of Functional-Differential Equations

Document Type : Original Article

Author

Department of Mathematics, Military Technical College Cairo, Egypt.

Abstract

In this paper it ispproved that for the RDE y"(t)- E pi(t) y(gi(t))=
f(t), every bounded solution is oscillatory under certainiconditions imposed. on the functions pi,gi and f for i=1,2,..,n.