%0 Journal Article
%T Existence and Uniqueness of Periodic Solution for Nonlinear Second-Order Ordinary Differential Equations
%A Zu Jian
%J Boundary Value Problems
%D 2011
%I Springer
%X We study periodic solutions for nonlinear second-order ordinary differential problem . By constructing upper and lower boundaries and using Leray-Schauder degree theory, we present a result about the existence and uniqueness of a periodic solution for second-order ordinary differential equations with some assumption.
%U http://www.boundaryvalueproblems.com/content/2011/192156