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Vietnam Journal of Mathematics 36:3(2008) 253-260  Homomorphisms, Amenability and Weak Amenability of Banach Algebras M. Eshaghi Gordji Abstract.  In this paper we find some necessary and sufficient conditions for a Banach algebra to be amenable or weakly amenable, by applying the homomorphisms on Banach algebras.   2000 Mathematics Subject Classification: 46H25. Keywords: Banach algebra, derivation, homomorphism.

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