%0 Journal Article %T A Fourth-Order Boundary Value Problem with One-Sided Nagumo Condition %A Song Wenjing %A Gao Wenjie %J Boundary Value Problems %D 2011 %I Springer %X The aim of this paper is to study a fourth-order separated boundary value problem with the right-hand side function satisfying one-sided Nagumo-type condition. By making a series of a priori estimates and applying lower and upper functions techniques and Leray-Schauder degree theory, the authors obtain the existence and location result of solutions to the problem. %U http://www.boundaryvalueproblems.com/content/2011/569191