Bilal Ahmad Wani

Commutativity of Banach Algebras with Derivations and Local Identities

In this paper we prove a transfer principle for Banach algebras and use it to show that, for local identities of product type, the algebraic hypotheses of the commutativity theorems of Yood type are superfluous. Such theorems assume an algebraic identity only on a small part of the algebra and only with an exponent tha...