E.M.E. Zayed; M.A. El-Moneam
E.M.E. Zayed; M.A. El-Moneam
摘要:
The main objective of this article is to study the oscillatory behavior of the
solutions of the following nonlinear functional differential equations
(a(t)x'(t))'+δ1p(t)x'(t)+δ2q(t)f(x(g(t)))=0,
for 0≤ t0 ≤t, where δ1=± 1 and δ2=± 1. The functions p,q,g:[t0,∞ )→R, f:R→R are continuous, a(t)>0, p(t)≥0,q(t)≥0 for t≥t0,limt→∞g(t)=∞, and q is not identically zero on any subinterval of [t0,∞). Moreover, the functions
q(t),g(t), and a(t) are continuously differentiable.
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