Johnson pseudo-contractibility of certain Banach algebras and their nilpotent ideals

M. Askari-Sayah, A. Pourabbas, A. Sahami

In this paper, we study the notion of Johnson pseudo-contractibility for certain Banach algebras. For a bicyclic semigroup $S$, we show that ${\ell }^1(S)$ is not Johnson pseudo-con…