##### Volume 01 (2012)

ABOUT THIS JOURNAL

Journal of Linear and Topological Algebra (JLTA) is an international mathematical journal founded at the middle of 2012. This journal is published by the IAU, Central Tehran Branch, and it appears four times a year. All papers published by Journal of Linear and Topological Algebra are rigorously peer reviewed, free of charge and open access. Articles that have previously been published, fully or in part, in a conference proceedings or else, should not be submitted to Journal of Linear and Topological Algebra for publication.

AIM AND SCOPE

Journal of Linear and Topological Algebra publishes original papers that advance study of linear algebra, topological algebras and their numerous applications. Particularly papers are sought that contribute new information to one of the fields of functional analysis and operator theory, convex analysis, matrix analysis, control and optimization, combinatorial linear algebra, ring theory and module theory, numerical linear algebra or immediate application of any of these fields to other branches of mathematics, including (but not limited to), differential equations, mathematical physics, geometry and probability.

NEW Indexing

Dear Researchers
It is my pleasure to inform you that the Journal of Linear and Topological Algebra has been accepted to be indexed in the Islamic World Science Citation Center (ISC). We would like to draw your attention to a part of letter received from ISC at News menu.

NEW RULES FOR SUBMITTING A PAPER

1. The standard abbreviation form for this title is "J. Linear. Topological. Algebra.". If you need to cite this journal, please use this abbreviated form.

2. Since JLTA want to registration for the evaluation by ESCI-WOS and SCOPUS, please seriously avoid of self-citation and considering a special journal in your references.

3. This journal only accept Research and Original papers. Also, the Managing Editor will check the novelty of your paper by google scholar and the website of Crossref, and will reject your submitted paper if he find very similarity with other papers. Hence, please check you papers at address: https://www.crossref.org or check by a Plagiarism browser.

4. It is not allowed to have more that two submitted papers in one time, including papers with different coauthors. During the submission process, the corresponding author has to insert all names of coauthors keeping the order of names in the same way as it is in the submitted PDF file. Please note that changes of names or orders of names will not be accepted.

5. Before submission a paper, please prepare your manuscript according to Guide for Authors. The Managing Editor will check your submission and will back if you don't consider all of  essentials. Also, accepted papers will be published if the corresponding author send Copy-Right form.

Short Communication Integral equations
##### 1. An efficient method for the numerical solution of functional integral equations

M. Nili Ahmadabadi

Volume 09, Issue 02 , Spring 2020, Pages 105-111

##### Abstract
We propose an efficient mesh-less method for functional integral equations. Its convergence analysis has been provided. It is tested via a few numerical experiments which show the efficiency and applicability of the proposed method. Attractive numerical results have been obtained.  Read More

Research Paper Operator theory
##### 2. Integral type contraction and coupled fixed point theorems in ordered G-metric spaces

E. Lotfali Ghasab; H. Majani; G. Soleimani Rad

Volume 09, Issue 02 , Spring 2020, Pages 113-120

##### Abstract
In this paper, we apply the idea of integral type contraction and prove some coupled fixed point theorems for such contractions in ordered $G$-metric space. Also, we support the main results by an illustrative example.  Read More

Research Paper General topology
##### 3. Paracompactness on supra topological spaces

T. Al-shami

Volume 09, Issue 02 , Spring 2020, Pages 121-127

##### Abstract
In this article, we present the concept of supra paracompact spaces and study its basic properties. We elucidate its relationship with supra compact spaces and prove that the property of being a supra paracompact space is weakly hereditary and topological properties. Also, we provide some examples to ...  Read More

Research Paper Functional analysis
##### 4. Approximation of endpoints for multi-valued mappings in metric spaces

K. Ullah; J. Ahmad; N. Muhammad

Volume 09, Issue 02 , Spring 2020, Pages 129-137

##### Abstract
In this paper, under some appropriate conditions, we prove some $\Delta$ and strong convergence theorems of endpoints for multi-valued nonexpansive mappings using modified Agarwal-O'Regan-Sahu iterative process in the general setting of 2-uniformly convex hyperbolic spaces. Our results extend and unify ...  Read More

Research Paper General topology
##### 5. Somewhat-connectedness and somewhat-continuity in the product space

M. S. Bilao; M. A. Labendia

Volume 09, Issue 02 , Spring 2020, Pages 139-148

##### Abstract
In this paper, the concept of somewhat-connected space will be introduced and characterized. Its connection with the other well-known concepts such as the classical connectedness, the $\omega_\theta$-connectedness, and the $\omega$-connectedness will be determined. Moreover, the concept of \textit{somewhat}-continuous ...  Read More

Research Paper Abstract harmonic analysis
##### 6. ‎Some‎ relations between ‎$‎L^p‎$‎-spaces on locally compact group ‎$‎G‎$ ‎and‎ double coset $K\setminus G/H‎$

R. A. Kamyabi Gol; F. Fahimian; F. Esmaeelzadeh

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

##### 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 ...  Read More

Research Paper Fixed point theory
##### 7. Common fixed point results for graph preserving mappings in parametric $N_b$-metric spaces

S. Kumar Mohanta; R. Kar

Volume 09, Issue 02 , Spring 2020, Pages 165-183

##### Abstract
In this paper, we discuss the existence and uniqueness of points of coincidence and common fixed points for a pair of graph preserving mappings in parametric $N_b$-metric spaces. As some consequences of this study, we obtain several important results in parametric $b$-metric spaces, parametric $S$-metric ...  Read More

Calculus of variations and optimal control; optimization
##### 1. The directional hybrid measure of efficiency in data envelopment analysis

A. Mirsalehy; M. Rizam Abu Baker; L. S. Lee; Gh. R. Jahanshahloo

Volume 05, Issue 03 , Summer 2016, , Pages 155-174

##### Abstract
The efficiency measurement is a subject of great interest. The majority of studies on DEA models have been carried out using radial or non-radial approaches regarding the application of DEA for the efficiency measurement. This paper, based on the directional distance function, proposes a new generalized ...  Read More

Abstract harmonic analysis
##### 2. Classical Wavelet Transforms over Finite Fields

A. Ghaani Farashahi

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

##### 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 ...  Read More

Fixed point theory
##### 3. Common best proximity points for $(\psi-\phi)$-generalized weak proximal contraction type mappings

K. K. M. Sarma; G. Yohannes

Volume 06, Issue 04 , Autumn 2017, , Pages 289-300

##### Abstract
In this paper, we introduce a pair of generalized proximal contraction mappings and prove the existence of a unique best proximity point for such mappings in a complete metric space. We provide examples to illustrate our result. Our result extends some of the results in the literature.  Read More

Functional analysis
##### 4. Duals and approximate duals of g-frames in Hilbert spaces

M. Mirzaee Azandaryani; A. Khosravi

Volume 04, Issue 04 , Autumn 2015, , Pages 259-265

##### Abstract
In this paper we get some results and applications for duals and approximate duals of g-frames in Hilbert spaces. In particular, we consider the stability of duals and approximate duals under bounded operators and we study duals and approximate duals of g-frames in the direct sum of Hilbert spaces. We ...  Read More

Functional analysis
##### 5. Frames for compressed sensing using coherence

L. Gavruta; G. Zamani Eskandani; P. Gavruta

Volume 04, Issue 01 , Winter 2015, , Pages 25-34

##### Abstract
We give some new results on sparse signal recovery in the presence of noise, for weighted spaces. Traditionally, were used dictionaries that have the norm equal to 1, but, for random dictionaries this condition is rarely satis ed. Moreover, we give better estimations then the ones given ...  Read More

Publisher:
Central Tehran Branch, Islamic Azad University

Editor-in-Chief:
Rahimi, Hamidreza

Assistant Editor:
Soleimani Rad, Ghasem

Guest Associate Editor:
Mujahid Abbas

Director-in-Charge:
Rahimi, Hamidreza

Print ISSN: 2252-0201

Online ISSN: 2345-5934