Sigma Ideal Amenability of Banach Algebras


Authors

M. Momeni - Department of Mathematics, Science and Research Branch, Islamic Azad University (IAU), Tehran. T. Yazdanpanah - Department of Mathematics, Persian Gulf University, Bushehr 75169, Iran. M. R. Mardanbeigi - Department of Mathematics, Science and Research Branch, Islamic Azad University (IAU), Tehran.


Abstract

Let \(A\) be a Banach algebra and let \(I\) be a closed two-sided ideal in \(A\). \(A\) is \(I\)-weakly amenable if \(H^1(A,I^*) = \{0\}\). Further, \(A\) is ideally amenable if \(A\) is \(I\)-weakly amenable for every closed two-sided ideal \(I\) in \(A\). In this paper we introduce \(\sigma\)-ideal amenability for a Banach algebra \(A\), where \(\sigma\) is an idempotent bounded endomorphism of \(A\).


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ISRP Style

M. Momeni, T. Yazdanpanah, M. R. Mardanbeigi, Sigma Ideal Amenability of Banach Algebras, Journal of Mathematics and Computer Science, 8 (2014), no. 3, 319-325

AMA Style

Momeni M., Yazdanpanah T., Mardanbeigi M. R., Sigma Ideal Amenability of Banach Algebras. J Math Comput SCI-JM. (2014); 8(3):319-325

Chicago/Turabian Style

Momeni, M., Yazdanpanah, T., Mardanbeigi, M. R.. "Sigma Ideal Amenability of Banach Algebras." Journal of Mathematics and Computer Science, 8, no. 3 (2014): 319-325


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