Periodic solutions for pp-Laplacian Rayleigh equations

By employing Mawhin’s continuation theorem, the existence of the pp-Laplacian delay Rayleigh equation (φp(x′(t)))′+f(x′(t))+βg(x(t−τ(t)))=e(t)(φp(x′(t)))′+f(x′(t))+βg(x(t−τ(t)))=e(t) under various assumptions is obtained.