Periodic solutions for a kind of Liénard equation with two deviating arguments

In this paper, we use the coincidence degree theory to establish new results on the existence of T-periodic solutions for the Liénard equation with two deviating arguments of the formx″(t)+f(x(t))x′(t)+g1(t,x(t-τ1(t)))+g2(t,x(t-τ2(t)))=p(t).x″(t)+f(x(t))x′(t)+g1(t,x(t-τ1(t)))+g2(t,x(t-τ2(t)))=p(t).