Vanishing of the first $(\sigma ,\tau )$-cohomology group of triangular Banach algebras

M. Khosravi, M. S. Moslehian, A. N. Motlagh

In this paper, we define the first topological $(\sigma ,\tau )$-cohomology group and examine vanishing of the first $(\sigma ,\tau )$-cohomology groups of certain triangular Banach algebras. We apply…