H. R. E. Vishki

activity

20072024

most citedModule homomorphisms and multipliers on locally compact quantum groups

6 citations · 18 across the 13 of their papers we have counts for

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9 papers · 1 filter

math.FA2024

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 $k$ -orthogonally additive property ( $k$ -OA property, for short) if every orthogonally additive k-homogeneous polynomial $P:\mathcal{A}\to \mathbb…

math.FA2021

The principle of local reflexivity and an extension of the identity $B (E, X^{}) ≅ B (E, X)^{}$

Ramin Faal, Hamid Reza Ebrahimi Vishki

By using the Principle of Local Reflexivity (PLR), we prove that for every two Banach spaces $E$ and $X$ there exists a suitable ultrafilter $U$ such that $ \mathcal{F}(E…

math.FA2010

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.

math.FA2009

Filters and Semigroup Compactification Properties

M. Akbari Tootkaboni, H. R. E. Vishki

Stone- $C ˘$ ech compactifications derived from a discrete semigroup $S$ can be considered as the spectrum of the algebra $B (S)$ or as a collection of ultrafilters on…

math.FA2009★ 4 cited

A Class of Distal Functions on Semitopological Semigroups

A. Jabbari, H. R. E. Vishki

The norm closure of the algebra generated by the set ${n \mapsto λ^{n^{k}} :$ $λ \in T$ and $k \in N}$ of functions on $(Z, +)$ was studied in \cite{S}…

math.FA2009

Constructions preserving $n$ -weak amenability of Banach algebras

A. Jabbari, M. S. Moslehian, H. R. E. Vishki

A surjective bounded homomorphism fails to preserve $n$ -weak amenability, in general. We however show that it preserves the property if the involved homomorphism enjoys a right inv…