Periodic solutions for Liénard type p-Laplacian equation with a deviating argument

In this paper, we use the coincidence degree theory to establish new results on the existence of T-periodic solutions for the Liénard type p-Laplacian equation with a deviating argument of the form:(ϕp(x′(t)))′+f(x(t))x′(t)+g(t,x(t-τ(t)))=e(t).(ϕp(x′(t)))′+f(x(t))x′(t)+g(t,x(t-τ(t)))=e(t).