**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)**

##### 1. Weak amenability of (2N)-th dual of a Banach algebra

*Volume 01, Issue 02 , Spring 2012, Pages 55-65*

#####
**Abstract **

In this paper by using some conditions, we show that the weak amenability of (2n)-th dual of a Banach algebra A for some $n\geq 1$ implies the weak amenability of A.
Read More
##### 2. A note on uniquely (nil) clean ring

*Volume 01, Issue 02 , Spring 2012, Pages 67-69*

#####
**Abstract **

A ring R is uniquely (nil) clean in case for any $a \in R$ there exists a uniquely idempotent $e\in R$ such that $a-e$ is invertible (nilpotent). Let $C =(A V W B)$ be the Morita Context ring. We determine conditions under which the rings $A,B$ are uniquely (nil) clean. Moreover ...
Read More
##### 3. A mathematically simple method based on denition for computing eigenvalues, generalized eigenvalues and quadratic eigenvalues of matrices

*Volume 01, Issue 02 , Spring 2012, Pages 71-81*

#####
**Abstract **

In this paper, a fundamentally new method, based on the denition, is introduced for numerical computation of eigenvalues, generalized eigenvalues and quadratic eigenvalues of matrices. Some examples are provided to show the accuracy and reliability of the proposed method. It is shown ...
Read More
##### 4. Numerical Solution of Heun Equation Via Linear Stochastic Differential Equation

*Volume 01, Issue 02 , Spring 2012, Pages 83-95*

#####
**Abstract **

In this paper, we intend to solve special kind of ordinary differential equations which is called Heun equations, by converting to a corresponding stochastic differential equation(S.D.E.). So, we construct a stochastic linear equation system from this equation which its solution is based on ...
Read More
##### 5. A New Inexact Inverse Subspace Iteration for Generalized Eigenvalue Problems

*Volume 01, Issue 02 , Spring 2012, Pages 97-113*

#####
**Abstract **

In this paper, we represent an inexact inverse subspace iteration method for computing a few eigenpairs of the generalized eigenvalue problem Ax = Bx [Q. Ye and P. Zhang, Inexact inverse subspace iteration for generalized eigenvalue problems, Linear Algebra and its Application, 434 (2011) 1697-1715 ...
Read More
##### 6. Module-Amenability on Module Extension Banach Algebras

*Volume 01, Issue 02 , Spring 2012, Pages 111-114*

#####
**Abstract **

Let $A$ be a Banach algebra and $E$ be a Banach $A$-bimodule then $S = A \oplus E$, the $l^1$-direct sum of $A$ and $E$ becomes a module extension Banach algebra when equipped with the algebras product $(a,x).(a^\prime,x^\prime)= (aa^\prime, a.x^\prime+ x.a^\prime)$. In this paper, we investigate ...
Read More
##### 7. E-Clean Matrices and Unit-Regular Matrices

*Volume 01, Issue 02 , Spring 2012, Pages 115-118*

#####
**Abstract **

Let $a, b, k,\in K$ and $u, v \in U(K)$. We show for any idempotent $e\in K$, $(a 0|b 0)$ is e-clean iff $(a 0|u(vb + ka) 0)$ is e-clean and if $(a 0|b 0)$ is 0-clean, $(ua 0|u(vb + ka) 0)$ is too.
Read More
##### 8. Recognition of the group $G_2(5)$ by the prime graph

*Volume 01, Issue 02 , Spring 2012, Pages 115-120*