Existence of Periodic Solutions of Nonlinear Neutral Differential Equation with Deviating Argument

摘要

Existence criteria is established for the periodic solution of the nonlinear neutral delay differential equation x′(t) = f(t,x(t), x(t - τ_1(t)),x′(t - τ_2(t))) + p(t) by means of an abstract continuous theorem of k-set contractive operator and some analysis technique.