Existence and uniqueness of periodic solutions for a kind of Duffing equation with two deviating arguments
In this paper, we use the coincidence degree theory to establish new results on the existence and uniqueness of T-periodic solutions for a kind of Duffing equation with two deviating arguments of the form x '' + Cx'(t) + g(1)(t, x (t - tau(1) (1)) + g(2) (t, X (t - tau(2)(t)) = p(t) (c) 2006 Elsevier Ltd. All rights reserved.
periodic solution duffing equation deviating argument coincidence degree