Existence and uniqueness of periodic solutions for a kind of Liénard equation with multiple deviating arguments

摘要

In this paper, a kind of Liénard equation with multiple deviating arguments of the form x"(t)+f(x(t))x¢(t)+å_k=1ng_k(t,x(t-t_k(t)))=p(t)x''(t)+f(x(t))x'(t)+sum_{k=1}^{n}g_{k}(t,x(t-tau_{k}(t)))=p(t)