**Volume 10 (2021)**

**Volume 09 (2020)**

**Volume 08 (2019)**

**Volume 07 (2018)**

**Volume 06 (2017)**

**Volume 05 (2016)**

**Volume 04 (2015)**

**Volume 03 (2014)**

**Volume 02 (2013)**

**Volume 01 (2012)**

# Main Subjects = Abstract harmonic analysis
Number of Articles: 8

##### 1. Operators reversing b-Birkhoff orthogonality in 2-normed linear spaces

*Volume 09, Issue 04 , Autumn 2020, , Pages 291-299*

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**Abstract **

In this paper, we discuss the relationships between 2-functionals and existence of b-Birkhoff orthogonal elements in 2-normed linear spaces. Moreover, we obtain some characterizations of 2-inner product spaces by b-Birkhoff orthogonality. Then we study the operators reversing b-Birkhoff orthogonality ...
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##### 2. Some relations between $L^p$-spaces on locally compact group $G$ and double coset $K\setminus G/H$

*Volume 09, Issue 02 , Spring 2020, , Pages 149-163*

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**Abstract **

Let $H$ and $K$ be compact subgroups of locally compact group $G$. By considering the double coset space $K\setminus G/H$, which equipped with an $N$-strongly quasi invariant measure $\mu$, for $1\leq p\leq +\infty$, we make a norm decreasing linear map from $L^p(G)$ onto $L^p(K\setminus G/H,\mu)$ and ...
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##### 3. Measures of maximal entropy

*Volume 08, Issue 04 , Autumn 2019, , Pages 229-235*

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**Abstract **

We extend the results of Walters on the uniqueness of invariant measures with maximal entropy on compact groups to an arbitrary locally compact group. We show that the maximal entropy is attained at the left Haar measure and the measure of maximal entropy is unique.
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##### 4. Spectral triples of weighted groups

*Volume 06, Issue 03 , Summer 2017, , Pages 207-216*

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**Abstract **

We study spectral triples on (weighted) groups and consider functors between the categories of weighted groups and spectral triples. We study the properties of weights and the corresponding functor for spectral triples coming from discrete weighted groups.
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##### 5. Characterization of $\delta$-double derivations on rings and algebras

*Volume 06, Issue 01 , Winter 2017, , Pages 55-65*

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**Abstract **

The main purpose of this article is to offer some characterizations of $\delta$-double derivations on rings and algebras. To reach this goal, we prove the following theorem:Let $n > 1$ be an integer and let $\mathcal{R}$ be an $n!$-torsion free ring with the identity element $1$. Suppose ...
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##### 6. Classical Wavelet Transforms over Finite Fields

*Volume 04, Issue 04 , Autumn 2015, , Pages 241-257*

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**Abstract **

This article introduces a systematic study for computational aspects of classical wavelet transforms over finite fields using tools from computational harmonic analysis and also theoretical linear algebra. We present a concrete formulation for the Frobenius norm of the classical wavelet transforms over ...
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##### 7. Quotient Arens regularity of $L^1(G)$

*Volume 04, Issue 04 , Autumn 2015, , Pages 275-281*

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**Abstract **

Let $\mathcal{A}$ be a Banach algebra with BAI and $E$ be an introverted subspace of $\mathcal{A}^\prime$. In this paper we study the quotient Arens regularity of $\mathcal{A}$ with respect to $E$ and prove that the group algebra $L^1(G)$ for a locally compact group $G$, is quotient Arens regular ...
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##### 8. Hereditary properties of amenability modulo an ideal of Banach algebras

*Volume 03, Issue 02 , Spring 2014, , Pages 107-114*