M. Gordji

activity

20052026

most citedDerivations into n-th duals of ideals of Banach algebras

3 citations · 15 across the 32 of their papers we have counts for

collaborators

Showing math.FAShow all

15 papers · 1 filter

math.FA2013

Generalization of Weak Amenability of Banach Algebras

Madjid Eshaghi Gordji, Ali Jabbari

New notion of weak amenability, $(φ, ψ)$ -weak amenability recently introduced. In this paper we consider this new notion and study $(φ, ψ)$ -weak amenability of group algebras $M (G)$ ,…

math.FA2009★ 1 cited

On the Mazur--Ulam theorem in fuzzy normed spaces

M. Eshaghi Gordji, N. Ghobadipour

In this paper, we establish the Mazur--Ulam theorem in the fuzzy strictly convex real normed spaces.

math.FA2009★ 1 cited

Fuzzy stability of ring homomorphisms and ring derivations on fuzzy Banach algebras

M. Eshaghi Gordji, N. Ghobadipour

In this paper, we establish the Hyers--Ulam--Rassias stability of ring homomorphisms and ring derivations on fuzzy Banach algebras.

math.FA2009

Stability of ternary Jordan homomorphisms and derivations associated to the generalized Jensen equation

M. Eshaghi Gordji, E. Rashidi, J. M. Rassias

In this paper, we establish the generalized Hyers-Ulam stability of Jordan homomorphisms and Jordan derivations between ternary algebras via the generalized Jensen equation $rf(\fr…

math.FA2009★ 2 cited

Fuzzy stability of additive--quadratic functional equations

M. Eshaghi Gordji, N. Ghobadipour, J. M. Rassias

In this paper we investigate the generalized Hyers- Ulam stability of the functional equation $f (2 x + y) + f (2 x - y) = f (x + y) + f (x - y) + 2 f (2 x) - 2 f (x)$ in fuzzy Banach spaces.

math.FA2009

Approximately Lie ternary $(σ, τ, ξ) -$ derivations on Banach ternary algebras

M. Eshaghi Gordji, R. Farrokhzad, S. A. R. Hosseinioun

Let $A$ be a Banach ternary algebra over a scalar field $R$ or $C$ and $X$ be a ternary Banach $A -$ module. Let $σ, τ$ and $ξ$ be linear mappings on $A$ , a linear mapping $…

math.FA2006

Module extensions of dual Banach algebras

M. Eshaghi Gordji, F. Habibian, A. Rejali

In this paper we define the module extension dual Banach algebras and we use this Banach algebras to finding the relationship between $w e a k^{*} -$ continuous homomorphisms of dual Bana…

math.FA2006

Left introverted subspaces of duals of Banach algebras and $W E A K^{*} -$ continuous derivations on dual Banach algebras

M. Eshaghi Gordji

Let $X$ be a left introverted subspace of dual of a Banach algebra. We study $Z_{t} (X^{*}),$ the topological center of Banach algebra $X^{*}$ . We fined the topological center of $(X\cA)^…

math.FA2006

First cohomology on weighted semigroup algebras

M. Eshaghi Gordji, F. Habibian, A. Rejali

The aim of this work is to generalize Johnson's techniques in order to apply them to establish a bijective correspondence between $S$ -derivations and continuous derivations on $M_a…

math.FA2006

Connes amenability of the second dual of Arens regular Banach algebras

M. Eshaghi Gordji

In this paper we study the Connes amenability of the second dual of Arens regular Banach algebras. Of course we provide a partial answer to the question posed by Volker Runde. Also…

math.FA2006★ 3 cited

Derivations into n-th duals of ideals of Banach algebras

M. Eshaghi Gordji, R. Memarbashi

We introduce two notions of amenability for a Banach algebra $A$ . Let $n \in N$ and let $I$ be a closed two-sided ideal in $A$ , $A$ is $n - I -$ weakly amenable if t…

math.FA2006★ 1 cited

Derivations into duals of closed ideals of Banach algebras

M. Eshaghi Gordji, B. Hayati, S. A. R. Hosseiniun

Let $A$ be a Banach algebra. We study those closed ideals $I$ of $A$ for which the first cohomology group of $A$ with coefficients in $I^{*}$ is trivial; i.e. $H^1(\ca…

math.FA2006★ 3 cited

Homomorphisms, amenability and weak amenability of Banach algebras

M. Eshaghi Gordji

In this paper we find some necessary and sufficient conditions for a Banach algebra to be amenable or weakly amenable, by applying the homomorphisms on Banach algebras.

math.FA2006

The fourth duals of Banach algebras

M. Eshaghi Gordji, S. A. R. Hosseiniun

Let $A$ be a Banach algebra. Then $A^{**}$ the second dual of $A$ is a Banach algebra with first (second) Arens product. We study the Arens products of $\cal A^{4}(=…

math.FA2005

Ideal amenability of Banach algebras on locally compact groups

M Eshaghi Gordji, S A R Hosseiniun

In this paper we study the ideal amenability of Banach algebras. Let $A$ be a Banach algebra and let $I$ be a closed two-sided ideal in $A$ , $A$ is $I$ -weakly amenab…

Generalization of Weak Amenability of Banach Algebras

On the Mazur--Ulam theorem in fuzzy normed spaces

Fuzzy stability of ring homomorphisms and ring derivations on fuzzy Banach algebras

Stability of ternary Jordan homomorphisms and derivations associated to the generalized Jensen equation

Fuzzy stability of additive--quadratic functional equations

Approximately Lie ternary (σ,τ,ξ)−derivations on Banach ternary algebras

Module extensions of dual Banach algebras

Left introverted subspaces of duals of Banach algebras and WEAK∗−continuous derivations on dual Banach algebras

First cohomology on weighted semigroup algebras

Connes amenability of the second dual of Arens regular Banach algebras

Derivations into n-th duals of ideals of Banach algebras

Derivations into duals of closed ideals of Banach algebras

Homomorphisms, amenability and weak amenability of Banach algebras

The fourth duals of Banach algebras

Ideal amenability of Banach algebras on locally compact groups

Approximately Lie ternary $(σ, τ, ξ) -$ derivations on Banach ternary algebras

Left introverted subspaces of duals of Banach algebras and $W E A K^{*} -$ continuous derivations on dual Banach algebras