Chengjun Guo

Existence of subharmonic solutions and homoclinic orbits for a class of even higher order differential equations

Using the variational structure and the Z 2 group index theory we establish the existence of subharmonic solutions and homoclinic solutions for a class of even higher order differential equation.

Existence of homoclinic orbits for a class of first-order differential difference equations

Abstract In this article we consider via critical point theory the existence of homoclinic orbits of the first-order differential difference equation z ˙ ( t ) + B ( t ) z ( t ) + f ( t , z ( t + τ ) , z ( t ) , z ( t - τ ) ) = 0.

Existence of Periodic Solutions for a Class of Second-Order Neutral Differential Equations with Multiple Deviating Arguments

Usando el teorema del punto fijo de Kranoselskii y el teorema de continuacion de Mawhin establecemos la existencia de soluciones periodicas de una ecuacion diferencial neutral de segundo orden con argumento de desviacion multiple.