On an Approximate Solution to Rodriguez Conjecture

Rickart Theorem ensures the automatic continuity of a dense range homomorphism from a Banach algebra into a strongly Semisimple Banach algebra. Rodriguez conjecture is an extension of Rickart theorem in order to include the nonassociative algebras as follows:<br /> <span style="text-de...

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Main Authors: Amir Mohammed, Ruqiya Balu
Format: Article
Language:English
Published: Mosul University 2006-07-01
Series:Al-Rafidain Journal of Computer Sciences and Mathematics
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Online Access:https://csmj.mosuljournals.com/article_164044_80945347d3b6b7bbf6d5be25e371c4bc.pdf
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author Amir Mohammed
Ruqiya Balu
author_facet Amir Mohammed
Ruqiya Balu
author_sort Amir Mohammed
collection DOAJ
description Rickart Theorem ensures the automatic continuity of a dense range homomorphism from a Banach algebra into a strongly Semisimple Banach algebra. Rodriguez conjecture is an extension of Rickart theorem in order to include the nonassociative algebras as follows:<br /> <span style="text-decoration: underline;">Rodriguez conjecture</span>:Every densely valued homomorphism from a complete normed nonassociative algebra into another one with zero strong radical is continuous.<br /> There is an affirmative answer of Rodriguez conjecture in particular case of power-associative algebra’s. In this work, we give an approximate solution of Rodriguez conjecture:<br /> If A and B are complete normed nonassociative algebras and if f is a dense range homomorphism from A into B such that M(A) (the multiplication algebra of A) is full and B is strongly Semisimple, then f is continuous.<br /> Finally, we give a Gelfand theorem on automatic continuity as a corollary and as an applied example of our approximate solution of Rodriguez conjecture.<br />
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spelling doaj-art-89953dfec6b54857a8daa9cf7e1e3b832025-08-20T02:09:37ZengMosul UniversityAl-Rafidain Journal of Computer Sciences and Mathematics1815-48162311-79902006-07-0131435310.33899/csmj.2006.164044164044On an Approximate Solution to Rodriguez ConjectureAmir Mohammed0Ruqiya Balu1Department of Mathematics College of Education University of Mosul, Mosul, IraqCollege of Education, University of Mosul, IraqRickart Theorem ensures the automatic continuity of a dense range homomorphism from a Banach algebra into a strongly Semisimple Banach algebra. Rodriguez conjecture is an extension of Rickart theorem in order to include the nonassociative algebras as follows:<br /> <span style="text-decoration: underline;">Rodriguez conjecture</span>:Every densely valued homomorphism from a complete normed nonassociative algebra into another one with zero strong radical is continuous.<br /> There is an affirmative answer of Rodriguez conjecture in particular case of power-associative algebra’s. In this work, we give an approximate solution of Rodriguez conjecture:<br /> If A and B are complete normed nonassociative algebras and if f is a dense range homomorphism from A into B such that M(A) (the multiplication algebra of A) is full and B is strongly Semisimple, then f is continuous.<br /> Finally, we give a Gelfand theorem on automatic continuity as a corollary and as an applied example of our approximate solution of Rodriguez conjecture.<br />https://csmj.mosuljournals.com/article_164044_80945347d3b6b7bbf6d5be25e371c4bc.pdfautomatic continuityrickart theorembanach algebrarodriguez conjecturegelfand theorem
spellingShingle Amir Mohammed
Ruqiya Balu
On an Approximate Solution to Rodriguez Conjecture
Al-Rafidain Journal of Computer Sciences and Mathematics
automatic continuity
rickart theorem
banach algebra
rodriguez conjecture
gelfand theorem
title On an Approximate Solution to Rodriguez Conjecture
title_full On an Approximate Solution to Rodriguez Conjecture
title_fullStr On an Approximate Solution to Rodriguez Conjecture
title_full_unstemmed On an Approximate Solution to Rodriguez Conjecture
title_short On an Approximate Solution to Rodriguez Conjecture
title_sort on an approximate solution to rodriguez conjecture
topic automatic continuity
rickart theorem
banach algebra
rodriguez conjecture
gelfand theorem
url https://csmj.mosuljournals.com/article_164044_80945347d3b6b7bbf6d5be25e371c4bc.pdf
work_keys_str_mv AT amirmohammed onanapproximatesolutiontorodriguezconjecture
AT ruqiyabalu onanapproximatesolutiontorodriguezconjecture