Finite dimensionality in scole of Banach algebras

It is shown that if the socle soc(A) of a semisimple Banach algebra A is norm-closed, then soc(A) is already finite dimensional. The proof makes use of the Al-Moajil theorem. However it is remarked that our main theorem is an extension of the Al-Moajil's.

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Main Author: Sin-Ei Takahasi
Format: Article
Language:English
Published: Wiley 1984-01-01
Series:International Journal of Mathematics and Mathematical Sciences
Subjects:
Online Access:http://dx.doi.org/10.1155/S0161171284000570
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author Sin-Ei Takahasi
author_facet Sin-Ei Takahasi
author_sort Sin-Ei Takahasi
collection DOAJ
description It is shown that if the socle soc(A) of a semisimple Banach algebra A is norm-closed, then soc(A) is already finite dimensional. The proof makes use of the Al-Moajil theorem. However it is remarked that our main theorem is an extension of the Al-Moajil's.
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institution Kabale University
issn 0161-1712
1687-0425
language English
publishDate 1984-01-01
publisher Wiley
record_format Article
series International Journal of Mathematics and Mathematical Sciences
spelling doaj-art-56d7d162337c4b5db774500f6d1598da2025-02-03T00:59:26ZengWileyInternational Journal of Mathematics and Mathematical Sciences0161-17121687-04251984-01-017351952210.1155/S0161171284000570Finite dimensionality in scole of Banach algebrasSin-Ei Takahasi0Department of Mathematics, Ibaraki University, Mito, Ibaraki 310, JapanIt is shown that if the socle soc(A) of a semisimple Banach algebra A is norm-closed, then soc(A) is already finite dimensional. The proof makes use of the Al-Moajil theorem. However it is remarked that our main theorem is an extension of the Al-Moajil's.http://dx.doi.org/10.1155/S0161171284000570compactrumsocleminimal idempotentminimal left idealannihilator.
spellingShingle Sin-Ei Takahasi
Finite dimensionality in scole of Banach algebras
International Journal of Mathematics and Mathematical Sciences
compactrum
socle
minimal idempotent
minimal left ideal
annihilator.
title Finite dimensionality in scole of Banach algebras
title_full Finite dimensionality in scole of Banach algebras
title_fullStr Finite dimensionality in scole of Banach algebras
title_full_unstemmed Finite dimensionality in scole of Banach algebras
title_short Finite dimensionality in scole of Banach algebras
title_sort finite dimensionality in scole of banach algebras
topic compactrum
socle
minimal idempotent
minimal left ideal
annihilator.
url http://dx.doi.org/10.1155/S0161171284000570
work_keys_str_mv AT sineitakahasi finitedimensionalityinscoleofbanachalgebras