M. R. Koushesh

activity

20122018

most citedOne-point extensions of locally compact paracompact spaces

10 citations · 38 across the 22 of their papers we have counts for

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9 papers · 1 filter

math.FA2018

On closed non-vanishing ideals in $C_{B} (X)$ II; compactness properties

A. Khademi, M. R. Koushesh

For a completely regular space $X$ , let $C_{B} (X)$ be the normed algebra of all bounded continuous scalar-valued mappings on $X$ equipped with pointwise addition and multiplication a…

math.FA2017★ 3 cited

On closed subalgebras of CB(X)

M. Farhadi, M. R. Koushesh

For a completely regular space $X$ and a non-vanishing self-adjoint closed subalgebra $H$ of $C_{B} (X)$ which separates points from closed sets in $X$ we construct the Gelfand spectr…

math.FA2016

A Gelfand-Naimark type theorem

M. Farhadi, M. R. Koushesh

Let $X$ be a completely regular space. For a non-vanishing self-adjoint Banach subalgebra $H$ of $C_{B} (X)$ which has local units we construct the spectrum $sp (H)$ of $H$ …

math.FA2015★ 2 cited

Ideals in CB(X) arising from ideals in X

M. R. Koushesh

Let $X$ be a completely regular topological space. We assign to each (set theoretic) ideal of $X$ an (algebraic) ideal of $C_{B} (X)$ , the normed algebra of continuous bounded complex…

math.FA2015

Embedding normed linear spaces into C(X)

M. Fakhar, M. R. Koushesh, M. Raoofi

It is well known that every (real or complex) normed linear space $L$ is isometrically embeddable into $C (X)$ for some compact Hausdorff space $X$ . Here $X$ is the closed unit ball…

math.FA2013★ 4 cited

Continuous mappings with null support

M. R. Koushesh

Let $X$ be a (topological) space and let $I$ be an ideal in $X$ , that is, a collection of subsets of $X$ which contains all subsets of its elements and is closed under f…

math.FA2013★ 1 cited

Representations of certain Banach algebras

M. R. Koushesh

For a space $X$ denote by $C_{b} (X)$ the Banach algebra of all continuous bounded scalar-valued functions on $X$ and denote by $C_{0} (X)$ the set of all elements in $C_{b} (X)$ which vani…

math.FA2012

The Banach algebra of continuous bounded functions with separable support

M. R. Koushesh

We prove a commutative Gelfand--Naimark type theorem, by showing that the set $C_{s} (X)$ of continuous bounded (real or complex valued) functions with separable support on a locally…

math.FA2012★ 2 cited

Representations of certain normed algebras

M. R. Koushesh

We show that for a normal locally- $P$ space $X$ (where $P$ is a topological property subject to some mild requirements) the subset $C_{P} (X)$ of $C_b…

On closed non-vanishing ideals in CB​(X) II; compactness properties

On closed subalgebras of CB(X)

A Gelfand-Naimark type theorem

Ideals in CB(X) arising from ideals in X

Embedding normed linear spaces into C(X)

Continuous mappings with null support

Representations of certain Banach algebras

The Banach algebra of continuous bounded functions with separable support

Representations of certain normed algebras

On closed non-vanishing ideals in $C_{B} (X)$ II; compactness properties