$(\sigma ,\tau )$-amenability of $C^{\ast }$-algebras

M. Mirzavaziri, M. S. Moslehian

Suppose that $\mathcal{A}$ is an algebra, $\sigma ,\tau :\mathcal{A}\to \mathcal{A}$ are two linear mappings such that both $\sigma (\mathcal{A})$ and $\tau (\mathcal{A})$ are subalgebras of ${\ma…