6 citations · 18 across the 13 of their papers we have counts for
13 papers
Orthogonally additive polynomials on the bidual of Banach algebras
Aminallah Khosravi, Hamid Reza Ebrahimi Vishki, Ramin Faal
We say that a Banach algebra A has -orthogonally additive property (-OA property, for short) if every orthogonally additive k-homogeneous polynomial $P:\mathcal{A}\to \mathbb…
The principle of local reflexivity and an extension of the identity
Ramin Faal, Hamid Reza Ebrahimi Vishki
By using the Principle of Local Reflexivity (PLR), we prove that for every two Banach spaces and there exists a suitable ultrafilter such that $ \mathcal{F}(E…
f-Biderivations and Jordan biderivations of unital algebras with idempotents
Mohammad Ali Bahmani, Driss Bennis, Hamid Reza Ebrahimi Vishki +1
The notion of f-derivations was introduced by Beidar and Fong to unify several kinds of linear maps including derivations, Lie derivations and Jordan derivations. In this paper we…
Lie derivations on trivial extension algebras
A. H. Mokhtari, F. Moafian, H. R. Ebrahimi Vishki
In this paper we provide some conditions under which a Lie derivation on a trivial extension algebra is proper, that is, it can be decomposed into the sum of a derivation and a cen…
A non-weakly amenable Banach algebra whose bidual is weakly amenable
H. R. Ebrahimi Vishki
We answer, in the negative, the question: Does a Banach algebra inherit weak amenability from its bidual?, which was open since 1996.
Module homomorphisms and multipliers on locally compact quantum groups
M. Ramezanpour, H. R. E. Vishki
For a Banach algebra with a bounded approximate identity, we investigate the -module homomorphisms of certain introverted subspaces of , and show that all -module ho…