Journal of Mathematical Inequalities · Volume 6, Issue 1 The role of concavity in applications of avery type fixed point theorems to higher order differential equations 06-08 Pages 79-90 DOI 10.7153/jmi-06-08 Downloads Short PDF Full PDF PNG Authors Abdulmalik A. Altwaty Paul W. Eloe Keywords boundary value problem fixed point theorem generalized concavity higher order ordinary differential equation Subject classes 34B15 34B27 47H10