Some Results on Fixed Point Theorems in Banach Algebras

<p>Let X be a Banach algebra and D be a nonempty subset of X. Let (T 1, T 2) be a pair of self mappings on D satisfying some specific conditions. Here we discuss different situations for existence of solution of the operator equation u = T 1 uT 2 u in D. Similar results are established in case...

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Main Authors: Dipankar Das, Nilakshi Goswami, Vishnu Narayan Mishra
Format: Article
Language:English
Published: Etamaths Publishing 2017-01-01
Series:International Journal of Analysis and Applications
Online Access:http://www.etamaths.com/index.php/ijaa/article/view/839
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author Dipankar Das
Nilakshi Goswami
Vishnu Narayan Mishra
author_facet Dipankar Das
Nilakshi Goswami
Vishnu Narayan Mishra
author_sort Dipankar Das
collection DOAJ
description <p>Let X be a Banach algebra and D be a nonempty subset of X. Let (T 1, T 2) be a pair of self mappings on D satisfying some specific conditions. Here we discuss different situations for existence of solution of the operator equation u = T 1 uT 2 u in D. Similar results are established in case of reflexive Banach algebra X with the subset D. Again, considering a bounded, open and convex subset B in a uniformly convex Banach algebra X with three self mappings T 1 ,T 2 ,T 3 on B, we derive the conditions for existence of solution of the operator equation u = T 1 uT 2 u + T 3 u in B. Application of some of these results to the tensor product is also shown here with some examples.</p>
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spelling doaj.art-c7e3dbedb2bc4069bcc35eafec8c1bc62022-12-21T18:37:43ZengEtamaths PublishingInternational Journal of Analysis and Applications2291-86392017-01-011313240212Some Results on Fixed Point Theorems in Banach AlgebrasDipankar DasNilakshi GoswamiVishnu Narayan Mishra<p>Let X be a Banach algebra and D be a nonempty subset of X. Let (T 1, T 2) be a pair of self mappings on D satisfying some specific conditions. Here we discuss different situations for existence of solution of the operator equation u = T 1 uT 2 u in D. Similar results are established in case of reflexive Banach algebra X with the subset D. Again, considering a bounded, open and convex subset B in a uniformly convex Banach algebra X with three self mappings T 1 ,T 2 ,T 3 on B, we derive the conditions for existence of solution of the operator equation u = T 1 uT 2 u + T 3 u in B. Application of some of these results to the tensor product is also shown here with some examples.</p>http://www.etamaths.com/index.php/ijaa/article/view/839
spellingShingle Dipankar Das
Nilakshi Goswami
Vishnu Narayan Mishra
Some Results on Fixed Point Theorems in Banach Algebras
International Journal of Analysis and Applications
title Some Results on Fixed Point Theorems in Banach Algebras
title_full Some Results on Fixed Point Theorems in Banach Algebras
title_fullStr Some Results on Fixed Point Theorems in Banach Algebras
title_full_unstemmed Some Results on Fixed Point Theorems in Banach Algebras
title_short Some Results on Fixed Point Theorems in Banach Algebras
title_sort some results on fixed point theorems in banach algebras
url http://www.etamaths.com/index.php/ijaa/article/view/839
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