On the Invariance of Primitive Ideals via φ-derivations on Banach Algebras

• Journal title : Kyungpook mathematical journal
• Volume 53, Issue 4,  2013, pp.497-505
• Publisher : Department of Mathematics, Kyungpook National University
• DOI : 10.5666/KMJ.2013.53.4.497
Title & Authors
On the Invariance of Primitive Ideals via φ-derivations on Banach Algebras
Jung, Yong-Soo;

Abstract
The noncommutative Singer-Wermer conjecture states that every derivation on a Banach algebra (possibly noncommutative) leaves primitive ideals of the algebra invariant. This conjecture is still an open question for more than thirty years. In this note, we approach this question via some sufficient conditions for the separating ideal of $\small{{\phi}}$-derivations to be nilpotent. Moreover, we show that the spectral boundedness of $\small{{\phi}}$-derivations implies that they leave each primitive ideal of Banach algebras invariant.
Keywords
$\small{{\phi}}$-derivation;primitive ideal;Jacobson radical;separating space;spectrally bounded;
Language
English
Cited by
1.
Some conditions under which Jordan derivations are zero, Journal of Taibah University for Science, 2016
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