Functional compression-expansion fixed point theorem

This paper presents a generalization of the fixed point theorems of compression and expansion of functional type. As an application, the existence of a positive solution to a second order conjugate boundary value problem is considered. We conclude with an extension to multivalued maps.

Bibliographic Details
Main Authors: Donal O'regan, Johnny Henderson, Richard Avery
Format: Article
Language:English
Published: Texas State University 2008-02-01
Series:Electronic Journal of Differential Equations
Subjects:
Online Access:http://ejde.math.txstate.edu/Volumes/2008/22/abstr.html
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author Donal O'regan
Johnny Henderson
Richard Avery
author_facet Donal O'regan
Johnny Henderson
Richard Avery
author_sort Donal O'regan
collection DOAJ
description This paper presents a generalization of the fixed point theorems of compression and expansion of functional type. As an application, the existence of a positive solution to a second order conjugate boundary value problem is considered. We conclude with an extension to multivalued maps.
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spelling doaj.art-81984666461340848e20ece9add21d3f2022-12-22T01:16:57ZengTexas State UniversityElectronic Journal of Differential Equations1072-66912008-02-01200822112Functional compression-expansion fixed point theoremDonal O'reganJohnny HendersonRichard AveryThis paper presents a generalization of the fixed point theorems of compression and expansion of functional type. As an application, the existence of a positive solution to a second order conjugate boundary value problem is considered. We conclude with an extension to multivalued maps.http://ejde.math.txstate.edu/Volumes/2008/22/abstr.htmlFixed-point theoremsconepositive solutionsmultivalued maps
spellingShingle Donal O'regan
Johnny Henderson
Richard Avery
Functional compression-expansion fixed point theorem
Electronic Journal of Differential Equations
Fixed-point theorems
cone
positive solutions
multivalued maps
title Functional compression-expansion fixed point theorem
title_full Functional compression-expansion fixed point theorem
title_fullStr Functional compression-expansion fixed point theorem
title_full_unstemmed Functional compression-expansion fixed point theorem
title_short Functional compression-expansion fixed point theorem
title_sort functional compression expansion fixed point theorem
topic Fixed-point theorems
cone
positive solutions
multivalued maps
url http://ejde.math.txstate.edu/Volumes/2008/22/abstr.html
work_keys_str_mv AT donaloregan functionalcompressionexpansionfixedpointtheorem
AT johnnyhenderson functionalcompressionexpansionfixedpointtheorem
AT richardavery functionalcompressionexpansionfixedpointtheorem