##### Volume 01 (2012)
Difference and functional equations
##### 76. A note on unique solvability of the absolute value equation

T. Lotfi; H. Vieseh

Volume 02, Issue 02 , Spring 2013, , Pages 77-81

##### Abstract
It is proved that applying sufficient regularity conditions to the interval matrix $[A-|B|,A + |B|]$, we can create a new unique solvability condition for the absolute value equation $Ax + B|x|=b$, since regularity of interval matrices implies unique solvability of their corresponding absolute ...  Read More

Combinatorics
##### 77. Product of normal edge-transitive Cayley graphs

A. Assari

Volume 03, Issue 02 , Spring 2014, , Pages 79-85

##### Abstract
For two normal edge-transitive Cayley graphs on groups H and K which have no common direct factor and $\gcd(|H/H^\prime|,|Z(K)|)=1=\gcd(|K/K^\prime|,|Z(H)|)$, we consider four standard products of them and it is proved that only tensor product of factors can be normal edge-transitive.  Read More

Fixed point theory
##### 78. Common fixed point of four maps in $S_b$-Metric spaces

S. Radenovic; Sh. Sedghi; A. Gholidahneh; T. Dosenovic; J. Esfahani

Volume 05, Issue 02 , Spring 2016, , Pages 93-104

##### Abstract
In this paper is introduced a new type of generalization of metric spaces called $S_b$ metric space. For this new kind of spaces it has been proved a common fixed point theorem for four mappings which satisfy generalized contractive condition. We also present example to confirm our theorem.  Read More

Group theory and generalizations
##### 79. Irreducibility of the tensor product of Albeverio's representations of the Braid groups $B_3$ and $B_4$

A. Taha; M. N. Abdulrahim

Volume 08, Issue 02 , Spring 2019, , Pages 105-115

##### Abstract
‎We consider Albeverio's linear representations of the braid groups $B_3$ and $B_4$‎. ‎We specialize the indeterminates used in defining these representations to non zero complex numbers‎. ‎We then consider the tensor products of the representations of $B_3$ and the tensor products ...  Read More

Ordinary differential equations
##### 80. Second order linear differential equations with generalized trapezoidal intuitionistic Fuzzy boundary value

S. P. Mondal; T. K. Roy

Volume 04, Issue 02 , Spring 2015, , Pages 115-129

##### Abstract
In this paper the solution of a second order linear differential equations with intuitionistic fuzzy boundary value is described. It is discussed for two different cases: coefficient is positive crisp number and coefficient is negative crisp number. Here fuzzy numbers are taken as generalized ...  Read More

General topology
##### 81. 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

General topology
##### 82. Fuzzy $\bigwedge_{e}$ Sets and Continuity in Fuzzy Topological spaces

Volume 06, Issue 02 , Spring 2017, , Pages 125-134

##### Abstract
We introduce a new class of fuzzy open sets called fuzzy $\bigwedge_e$ sets which includes the class of fuzzy $e$-open sets. We also define a weaker form of fuzzy $\bigwedge_e$ sets termed as fuzzy locally $\bigwedge_e$ sets. By means of these new sets, we present the notions of fuzzy $\bigwedge_e$ ...  Read More

Fuzzy Logic
##### 83. On the powers of fuzzy neutrosophic soft matrices

M. Kavitha; P. Murugadas; S. Sriram

Volume 07, Issue 02 , Spring 2018, , Pages 133-147

##### Abstract
In this paper, ‎The powers of fuzzy neutrosophic soft square matrices (FNSSMs) under the operations $\oplus(=max)$ and $\otimes(=min)$ are studied‎. ‎We show that the powers of a given FNSM stabilize if and only if its orbits stabilize for each starting fuzzy neutrosophic soft vector (FNSV) ...  Read More

Approximations and expansions
##### 84. A generalization of Bertrand's test

A. A. Tabatabai Adnani; A. Reza; M. Morovati

Volume 02, Issue 03 , Summer 2013, , Pages 145-151

##### Abstract
One of the most practical routine tests for convergence of a positive series makes use of the ratio test. If this test fails, we can use Rabbe's test. When Rabbe's test fails the next sharper criteria which may sometimes be used is the Bertrand's test. If this test fails, we can use a generalization ...  Read More

Functional analysis
##### 85. Topological number for locally convex topological spaces with continuous semi-norms

M. Rahimi; S. M. Vaezpour

Volume 03, Issue 03 , Summer 2014, , Pages 149-158

##### Abstract
In this paper we introduce the concept of topological number for locally convex topological spaces and prove some of its properties. It gives some criterions to study locally convex topological spaces in a discrete approach.  Read More

Fixed point theory
##### 86. $(F,\varphi‎ ,‎\alpha )_{s}$-contractions in ‎$‎b‎$‎-metric spaces and applications

M. Sangurlu Sezen

Volume 08, Issue 03 , Summer 2019, , Pages 173-182

##### Abstract
‎In this paper‎, ‎we introduce more general contractions called $\varphi$-fixed‎ ‎point point for $(F,\varphi‎ ,‎\alpha )_{s}$ and $(F,\varphi‎ ,‎\alpha )_{s}$-‎weak contractions‎. ‎We prove the existence and uniqueness of $\varphi$-‎fixed point ...  Read More

Fuzzy
##### 87. Fuzzy soft ideals of near-subraction semigroups

Volume 05, Issue 03 , Summer 2016, , Pages 175-186

##### Abstract
Our aim in this paper is to introduce the notion of fuzzy soft near-subtraction semigroups and fuzzy soft ideals of near-subtraction semigroups. We discuss some important properties of these new fuzzy algebraic structure and investigate some examples and counter examples.  Read More

Geometry
##### 88. Lie higher derivations on $B(X)$

S. Ebrahimi

Volume 04, Issue 03 , Summer 2015, , Pages 183-192

##### 100. Stochastic Non-Parametric Frontier Analysis

M. Rahmani; Gh. Jahanshahloo

Volume 02, Issue 01 , Winter 2013, , Pages 35-49

##### Abstract
In this paper we develop an approach that synthesizes the best features of the two main methods in the estimation of production efficiency. Speci cally, our approach first allows for statistical noise, similar to Stochastic frontier analysis, and second, it allows modeling multiple-inputs-multiple-outputs ...  Read More