"The role of concavity in applications of Avery type fixed point theore" by Abdulmalik A. Altwaty and Paul W. Eloe
 

Document Type

Article

Publication Date

2012

Publication Source

Journal of Mathematical Inequalities

Abstract

In this article we apply an extension of an Avery type fixed point theorem to a family of boundary value problems for higher order ordinary differential equations. The theorem employs concave and convex functionals defined on a cone in a Banach space. We begin by extending a known application to a right focal boundary value problem for a second order problem to a conjugate boundary value problem for a second order problem. We then extend inductively to a two point boundary value problem for a higher order equation. Concavity of differentiable functions plays a key role in the application to second order equations. A concept of generalized concavity plays the same key role in the application to the higher order equation.

Inclusive pages

79-90

ISBN/ISSN

1846-579X

Document Version

Published Version

Comments

This document is made available in compliance with the publisher's policy on self-archiving or with the express permission of the publisher. Permission documentation is on file.

Volume

6

Issue

1

Peer Reviewed

yes

Link to published version

Included in

Mathematics Commons

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