**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)**

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Number of Articles: 220

##### 126. Algebraic distance in algebraic cone metric spaces and its properties

*Volume 07, Issue 04 , Autumn 2018, , Pages 273-280*

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**Abstract **

In this paper, we prove some properties of algebraic cone metric spaces and introduce the notion of algebraic distance in an algebraic cone metric space. As an application, we obtain some famous fixed point results in the framework of this algebraic distance.
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##### 127. Common best proximity points for $(\psi-\phi)$-generalized weak proximal contraction type mappings

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

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**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.
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##### 128. OD-characterization of almost simple groups related to U3(11)

*Volume 01, Issue 01 , Winter 2012, , Pages 27-32*

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**Abstract **

Let $L := U_3(11)$. In this article, we classify groups with the same order and degree pattern as an almost simple group related to $L$. In fact, we prove that $L$, $L:2$ and $L:3$ are OD-characterizable, and $L:S_3$ is $5$-fold OD-characterizable.
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##### 129. Expansion methods for solving integral equations with multiple time lags using Bernstein polynomial of the second kind

*Volume 03, Issue 01 , Winter 2014, , Pages 35-45*

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**Abstract **

In this paper, the Bernstein polynomials are used to approximate the solutions of linear integral equations with multiple time lags (IEMTL) through expansion methods (collocation method, partition method, Galerkin method). The method is discussed in detail and illustrated by solving some numerical ...
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##### 130. Numerical solution of Fredholm integral-differential equations on unbounded domain

*Volume 04, Issue 01 , Winter 2015, , Pages 43-52*

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**Abstract **

In this study, a new and efficient approach is presented for numerical solution of Fredholm integro-differential equations (FIDEs) of the second kind on unbounded domain with degenerate kernel based on operational matrices with respect to generalized Laguerre polynomials(GLPs). Properties ...
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##### 131. F-Closedness in Bitopological Spaces

*Volume 05, Issue 01 , Winter 2016, , Pages 47-53*

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**Abstract **

The purpose of this paper is to introduce the concept of pairwise F-closedness in bitopological spaces. This space contains both of pairwise strongcompactness and pairwise S-closedness and contained in pairwise quasi H-closedness. The characteristics and relationships concerning this new class of spaces ...
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##### 132. Expansion of Bessel and g-Bessel sequences to dual frames and dual g-frames

*Volume 02, Issue 01 , Winter 2013, , Pages 51-57*

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**Abstract **

In this paper we study the duality of Bessel and g-Bessel sequences in Hilbert spaces. We show that a Bessel sequence is an inner summand of a frame and the sum of any Bessel sequence with Bessel bound less than one with a Parseval frame is a frame. Next we develop this results to the ...
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##### 133. Symbolic computation of the Duggal transform

*Volume 07, Issue 01 , Winter 2018, , Pages 53-62*

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**Abstract **

Following the results of \cite{Med}, regarding the Aluthge transform of polynomial matrices, the symbolic computation of the Duggal transform of a polynomial matrix $A$ is developed in this paper, using the polar decomposition and the singular value decomposition of $A$. Thereat, the polynomial ...
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##### 134. On a generalization of central Armendariz rings

*Volume 08, Issue 01 , Winter 2019, , Pages 53-61*

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**Abstract **

In this paper, some properties of $\alpha$-skew Armendariz and central Armendariz rings have been studied by variety of others. We generalize the notions to central $\alpha$-skew Armendariz rings and investigate their properties. Also, we show that if $\alpha(e)=e$ for each idempotent $e^{2}=e \in R$ ...
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##### 135. 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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##### 136. On the topological equivalence of some generalized metric spaces

*Volume 09, Issue 01 , Winter 2020, , Pages 67-74*

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**Abstract **

The aim of this paper is to establish the equivalence between the concepts of an $S$-metric space and a cone $S$-metric space using some topological approaches. We introduce a new notion of a $TVS$-cone $S$-metric space using some facts about ...
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##### 137. Operational matrices with respect to Hermite polynomials and their applications in solving linear differential equations with variable coefficients

*Volume 02, Issue 02 , Spring 2013, , Pages 91-103*

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**Abstract **

In this paper, a new and efficient approach is applied for numerical approximation of the linear differential equations with variable coeffcients based on operational matrices with respect to Hermite polynomials. Explicit formulae which express the Hermite expansion coeffcients for the ...
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##### 138. A New Inexact Inverse Subspace Iteration for Generalized Eigenvalue Problems

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

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**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 ...
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##### 139. Hereditary properties of amenability modulo an ideal of Banach algebras

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

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**Abstract **

In this paper we investigate some hereditary properties of amenability modulo an ideal of Banach algebras. We show that if $(e_\alpha)_\alpha$ is a bounded approximate identity modulo I of a Banach algebra A and X is a neo-unital modulo I, then $(e_\alpha)_\alpha$ is a bounded approximate identity ...
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##### 140. On categories of merotopic, nearness, and filter algebras

*Volume 05, Issue 02 , Spring 2016, , Pages 111-118*

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**Abstract **

We study algebraic properties of categories of Merotopic, Nearness, and Filter Algebras. We show that the category of filter torsion free abelian groups is an epireflective subcategory of the category of filter abelian groups. The forgetful functor from the category of filter rings to filter monoids ...
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##### 141. Some topological properties of fuzzy strong b-metric spaces

*Volume 08, Issue 02 , Spring 2019, , Pages 127-131*

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**Abstract **

In this study, we investigate topological properties of fuzzy strong b-metric spaces defined in [13]. Firstly, we prove Baire's theorem for these spaces. Then we define the product of two fuzzy strong b-metric spaces defined ...
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##### 142. Somewhat-connectedness and somewhat-continuity in the product space

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

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**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 ...
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##### 143. On the boundedness of almost multipliers on certain Banach algebras

*Volume 04, Issue 02 , Spring 2015, , Pages 143-152*

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**Abstract **

Almost multiplier is rather a new concept in the theory of almost functions. In this paper we discussion the boundedness of almost multipliers on some special Banach algebras, namely stable algebras. We also define an adjoint and extension for almost multiplier.
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##### 144. An implicit finite difference scheme for analyzing the effect of body acceleration on pulsatile blood flow through a stenosed artery

*Volume 06, Issue 02 , Spring 2017, , Pages 147-161*

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**Abstract **

With an aim to investigate the effect of externally imposed body acceleration on two dimensional,pulsatile blood flow through a stenosed artery is under consideration in this article. The blood flow has been assumed to be non-linear, incompressible and fully developed. The artery is assumed to be an ...
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##### 145. OD-characterization of $S_4(4)$ and its group of automorphisms

*Volume 02, Issue 03 , Summer 2013, , Pages 161-166*

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**Abstract **

Let $G$ be a finite group and $\pi(G)$ be the set of all prime divisors of $|G|$. The prime graph of $G$ is a simple graph $\Gamma(G)$ with vertex set $\pi(G)$ and two distinct vertices $p$ and $q$ in $\pi(G)$ are adjacent by an edge if an only if $G$ has an element of order $pq$. In this case, ...
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##### 146. Higher rank numerical ranges of rectangular matrix polynomials

*Volume 03, Issue 03 , Summer 2014, , Pages 173-184*

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**Abstract **

In this paper, the notion of rank-k numerical range of rectangular complex matrix polynomials are introduced. Some algebraic and geometrical properties are investigated. Moreover, for ϵ > 0; the notion of Birkhoff-James approximate orthogonality sets for ϵ-higher rank numerical ranges ...
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##### 147. Ring endomorphisms with nil-shifting property

*Volume 08, Issue 03 , Summer 2019, , Pages 191-202*

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**Abstract **

Cohn called a ring $R$ is reversible if whenever $ab = 0,$ then $ba = 0$ for $a,b\in R.$ The reversible property is an important role in noncommutative ring theory. Recently, Abdul-Jabbar et al. studied the reversible ring property on nilpotent elements, introducing the ...
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##### 148. Some topological operators via grills

*Volume 05, Issue 03 , Summer 2016, , Pages 199-204*

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**Abstract **

In this paper, we define and study two operators $\Phi^s$ and $\Psi^s$ with grill. Characterization and basic properties of these operators are obtained. Also, we generalize a grill topological spaces via topology $\tau^s$ induced from operators $\Phi^s$ and $\Psi^s$.
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##### 149. On the girth of the annihilating-ideal graph of a commutative ring

*Volume 04, Issue 03 , Summer 2015, , Pages 209-216*

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**Abstract **

The annihilating-ideal graph of a commutative ring $R$ is denoted by $AG(R)$, whose vertices are all nonzero ideals of $R$ with nonzero annihilators and two distinct vertices $I$ and $J$ are adjacent if and only if $IJ=0$. In this article, we completely characterize rings $R$ when ...
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##### 150. Fixed point theorems for α-ψ-ϕ-contractive integral type mappings

*Volume 03, Issue 04 , Autumn 2014, , Pages 219-230*