Existence of solutions of an integral equation of Chandrasekhar type in the theory of radiative transfer

We give an existence theorem for some functional-integral equations which includes many key integral and functional equations that arise in nonlinear analysis and its applications. In particular, we extend the class of characteristic functions appearing in Chandrasekhar's classical inte...

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Main Authors: Josefa Caballero, Angelo B. Mingarelli, Kishin Sadarangani
Format: Article
Language:English
Published: Texas State University 2006-05-01
Series:Electronic Journal of Differential Equations
Subjects:
Online Access:http://ejde.math.txstate.edu/Volumes/2006/57/abstr.html
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author Josefa Caballero
Angelo B. Mingarelli
Kishin Sadarangani
author_facet Josefa Caballero
Angelo B. Mingarelli
Kishin Sadarangani
author_sort Josefa Caballero
collection DOAJ
description We give an existence theorem for some functional-integral equations which includes many key integral and functional equations that arise in nonlinear analysis and its applications. In particular, we extend the class of characteristic functions appearing in Chandrasekhar's classical integral equation from astrophysics and retain existence of its solutions. Extensive use is made of measures of noncompactness and abstract fixed point theorems such as Darbo's theorem.
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spelling doaj.art-936f4002b2bf4db79b4a06a6add24b292022-12-22T02:01:05ZengTexas State UniversityElectronic Journal of Differential Equations1072-66912006-05-01200657111Existence of solutions of an integral equation of Chandrasekhar type in the theory of radiative transferJosefa CaballeroAngelo B. MingarelliKishin SadaranganiWe give an existence theorem for some functional-integral equations which includes many key integral and functional equations that arise in nonlinear analysis and its applications. In particular, we extend the class of characteristic functions appearing in Chandrasekhar's classical integral equation from astrophysics and retain existence of its solutions. Extensive use is made of measures of noncompactness and abstract fixed point theorems such as Darbo's theorem.http://ejde.math.txstate.edu/Volumes/2006/57/abstr.htmlMeasure of noncompactnessBanach algebraintegral equationfunctional equationfixed pointVolterraChandrasekhar H-functionsChandrasekhar integral equationradiative transfer.
spellingShingle Josefa Caballero
Angelo B. Mingarelli
Kishin Sadarangani
Existence of solutions of an integral equation of Chandrasekhar type in the theory of radiative transfer
Electronic Journal of Differential Equations
Measure of noncompactness
Banach algebra
integral equation
functional equation
fixed point
Volterra
Chandrasekhar H-functions
Chandrasekhar integral equation
radiative transfer.
title Existence of solutions of an integral equation of Chandrasekhar type in the theory of radiative transfer
title_full Existence of solutions of an integral equation of Chandrasekhar type in the theory of radiative transfer
title_fullStr Existence of solutions of an integral equation of Chandrasekhar type in the theory of radiative transfer
title_full_unstemmed Existence of solutions of an integral equation of Chandrasekhar type in the theory of radiative transfer
title_short Existence of solutions of an integral equation of Chandrasekhar type in the theory of radiative transfer
title_sort existence of solutions of an integral equation of chandrasekhar type in the theory of radiative transfer
topic Measure of noncompactness
Banach algebra
integral equation
functional equation
fixed point
Volterra
Chandrasekhar H-functions
Chandrasekhar integral equation
radiative transfer.
url http://ejde.math.txstate.edu/Volumes/2006/57/abstr.html
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AT kishinsadarangani existenceofsolutionsofanintegralequationofchandrasekhartypeinthetheoryofradiativetransfer