Periodic solutions of a class of fourth-order superlinear differential equations
Summary: This paper deals with the periodic solutions of a class of fourth-order superlinear differential equations. By using the classical variational techniques and symmetric mountain pass lemma, the periodic solutions of a single equation in literature are extended to that of equations, and also, the cubic growth of nonlinear term is extended to a general form of superlinear growth.
fourth-order superlinear differential equations
scientific article; zbMATH DE number 6116407