Acta Mathematica Vietnamica
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On Approximately σ -biflat Banach Algebras
Sanaz Haddad Sabzevar , Amin Mahmoodipp. 671-681
Abstract
We define and study approximate versions of σ-biflatness and σ-biprojectivity of a Banach algebra A where σ ∈Hom(A). We generalize the concepts pseudo amenability and pseudo contractibility via homomorphisms. We investigate their relations.