Periodic solutions for p-Laplacian neutral Liénard equation with a sign-variable coefficient

Abstract: Using Lu''s continuation theorem, the extension one of Manásevich–Mawhin, we study the existence of periodic solutions for p-Laplacian neutral Liénard equation of the formIt is meaningful that the coefficient ahead of the nonlinear term is allowed to change sign in this paper, which could be achieved infrequently in corresponding papers. [Copyright &y& Elsevier]