**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

##### 151. Some fixed point results for contractive type mappings in b-metric spaces

*Volume 07, Issue 03 , Summer 2018, , Pages 219-231*

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**Abstract **

In this work, we prove some fixed point theorems by using $wt$-distance on b-metric spaces. Our results generalize some fixed point theorems in the literature. Moreover, we introduce $wt_0$-distance and by using the concept of $wt_0$-distance, we obtain some coupled fixed point results in complete b-metric ...
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##### 152. Interval valued fuzzy weak bi-ideals of $\Gamma$-near-rings

*Volume 06, Issue 03 , Summer 2017, , Pages 223-236*

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**Abstract **

In this paper, we introduce the concept of interval valued fuzzy weak bi-ideals of $\Gamma$-near-rings, which is a generalized concept of fuzzy weak bi-ideals of $\Gamma$- near-rings. We also characterize some properties and examples of interval valued fuzzy weak bi-ideals of $\Gamma$-near-rings.
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##### 153. Approximate solution of fourth order differential equation in Neumann problem

*Volume 02, Issue 04 , Autumn 2013, , Pages 243-254*

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**Abstract **

Generalized solution on Neumann problem of the fourth order ordinary differential equation in space $W^2_\alpha(0,b)$ has been discussed, we obtain the condition on B.V.P when the solution is in classical form. Formulation of Quintic Spline Function has been derived and the consistency ...
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##### 154. Non-additive Lie centralizer of infinite strictly upper triangular matrices

*Volume 08, Issue 04 , Autumn 2019, , Pages 251-255*

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**Abstract **

Let $\mathcal{F}$ be an field of zero characteristic and $N_{\infty}(\mathcal{F})$ be the algebra of infinite strictly upper triangular matrices with entries in $\mathcal{F}$, and $f:N_{\infty}(\mathcal{F})\rightarrow N_{\infty}(\mathcal{F})$ be a non-additive ...
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##### 155. $\gamma_{_\mu}$-Lindel\"{o}f generalized topological spaces

*Volume 08, Issue 04 , Autumn 2019, , Pages 257-263*

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**Abstract **

In this paper we have introduced new types of sets termed as $\omega_{_{\gamma_{_\mu}}}$-open sets with the help of an operation and a generalized topology. We have also defined a notion of $\gamma_{_\mu}$-Lindel\"{o}f spaces and discussed some of its basic properties.
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##### 156. Preorder Relators and Generalized Topologies

*Volume 05, Issue 04 , Autumn 2016, , Pages 271-277*

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**Abstract **

In this paper we investigate generalized topologies generated by a subbase of preorder relators and consider its application in the concept of the complement. We introduce the notion of principal generalized topologies obtained from the new type of open sets and study some of their important ...
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##### 157. On a new type of stability of a radical cubic functional equation related to Jensen mapping

*Volume 07, Issue 04 , Autumn 2018, , Pages 281-292*

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**Abstract **

The aim of this paper is to introduce and solve the radical cubic functional equation $f\left(\sqrt[3]{x^{3}+y^{3}}\right)+f\left(\sqrt[3]{x^{3}-y^{3}}\right)=2f(x)$. We also investigate some stability and hyperstability results for the ...
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##### 158. Coincidence points and common fixed points for hybrid pair of mappings in b-metric spaces endowed with a graph

*Volume 06, Issue 04 , Autumn 2017, , Pages 301-321*

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**Abstract **

In this paper, we introduce the notion of strictly (α,ψ,ξ)-G-contractive mappings in b-metric spaces endowed with a graph G. We establish a sufficient condition for existence and uniqueness of points of coincidence and common fixed points for such mappings. Our results extend and unify many ...
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##### 159. New fixed and periodic point results on cone metric spaces

*Volume 01, Issue 01 , Winter 2012, , Pages 33-40*

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**Abstract **

In this paper, several fixed point theorems for T-contraction of two maps on cone metric spaces under normality condition are proved. Obtained results extend and generalize well-known comparable results in the literature.
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##### 160. Cubic spline Numerov type approach for solution of Helmholtz equation

*Volume 03, Issue 01 , Winter 2014, , Pages 47-54*

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**Abstract **

We have developed a three level implicit method for solution of the Helmholtz equation. Using the cubic spline in space and finite difference in time directions. The approach has been modied to drive Numerov type nite difference method. The method yield the tri-diagonal linear system of ...
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##### 161. On duality of modular G-Riesz bases and G-Riesz bases in Hilbert C*-modules

*Volume 04, Issue 01 , Winter 2015, , Pages 53-63*

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**Abstract **

In this paper, we investigate duality of modular g-Riesz bases and g-Riesz bases in Hilbert C*-modules. First we give some characterization of g-Riesz bases in Hilbert C*-modules, by using properties of operator theory. Next, we characterize the duals of a given g-Riesz basis in Hilbert C*-module. ...
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##### 162. Probability of having $n^{th}$-roots and n-centrality of two classes of groups

*Volume 05, Issue 01 , Winter 2016, , Pages 55-62*

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**Abstract **

In this paper, we consider the finitely 2-generated groups $K(s,l)$ and $G_m$ as follows:$$K(s,l)=\langle a,b|ab^s=b^la, ba^s=a^lb\rangle,\\G_m=\langle a,b|a^m=b^m=1, {[a,b]}^a=[a,b], {[a,b]}^b=[a,b]\rangle$$ and find the explicit formulas for the probability of having nth-roots for them. Also, ...
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##### 163. Computation of the q-th roots of circulant matrices

*Volume 02, Issue 01 , Winter 2013, , Pages 59-65*

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**Abstract **

In this paper, we investigate the reduced form of circulant matrices and we show that the problem of computing the q-th roots of a nonsingular circulant matrix A can be reduced to that of computing the q-th roots of two half size matrices B - C and B + C.
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##### 164. $\ast$-K-g-Frames in Hilbert $\mathcal{A}$-modules

*Volume 07, Issue 01 , Winter 2018, , Pages 63-71*

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**Abstract **

In this paper, we introduce the concepts of $\ast$-K-g-Frames in Hilbert $\mathcal{A}$-modules and we establish some results.
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##### 165. On $\beta-$topological vector spaces

*Volume 08, Issue 01 , Winter 2019, , Pages 63-70*

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**Abstract **

We introduce and study a new class of spaces, namely $\beta-$topological vector spaces via $\beta-$open sets. The relationships among these spaces with some existing spaces are investigated. In addition, some important and useful characterizations of $\beta-$topological vector spaces are provided.
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##### 166. Computational aspect to the nearest southeast submatrix that makes multiple a prescribed eigenvalue

*Volume 06, Issue 01 , Winter 2017, , Pages 67-72*

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**Abstract **

Given four complex matrices $A$, $B$, $C$ and $D$ where $A\in\mathbb{C}^{n\times n}$ and $D\in\mathbb{C}^{m\times m}$ and let the matrix $\left(\begin{array}{cc} A & B \ C & D \end{array} \right)$ be a normal matrix and assume ...
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##### 167. Multi-valued fixed point theorems in complex valued $b$-metric spaces

*Volume 09, Issue 01 , Winter 2020, , Pages 75-94*

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**Abstract **

The aim of this paper is to establish and prove some results on common fixed point for a pair of multi-valued mappings in complex valued $b$-metric spaces. Our results generalize and extend a few results in the literature.
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##### 168. A new approach to solve fuzzy system of linear equations by Homotopy perturbation method

*Volume 02, Issue 02 , Spring 2013, , Pages 105-115*

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**Abstract **

In this paper, we present an efficient numerical algorithm for solving fuzzy systems of linear equations based on homotopy perturbation method. The method is discussed in detail and illustrated by solving some numerical examples.
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##### 169. Module-Amenability on Module Extension Banach Algebras

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

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**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 ...
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##### 170. A generalized cost Malmquist index to compare the productivities of units with negative data in DEA

*Volume 03, Issue 02 , Spring 2014, , Pages 115-120*

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**Abstract **

In some data envelopment analysis (DEA) applications, some inputs of DMUs have negative values with positive cost. This paper generalizes the global cost Malmquist productivity index to compare the productivity of dierent DMUs with negative inputs in any two periods of times under variable ...
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##### 171. Random fixed point theorems with an application to a random nonlinear integral equation

*Volume 05, Issue 02 , Spring 2016, , Pages 119-133*

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**Abstract **

In this paper, stochastic generalizations of some fixed point for operators satisfying random contractively generalized hybrid and some other contractive condition have been proved. We discuss also the existence of a solution to a nonlinear random integral equation in Banah spaces.
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##### 172. On the duality of quadratic minimization problems using pseudo inverses

*Volume 08, Issue 02 , Spring 2019, , Pages 133-143*

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**Abstract **

In this paper we consider the minimization of a positive semidefinite quadratic form, having a singular corresponding matrix $H$. We state the dual formulation of the original problem and treat both problems only using the vectors $x \in \mathcal{N}(H)^\perp$ instead of the classical ...
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##### 173. 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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##### 174. s-Topological vector spaces

*Volume 04, Issue 02 , Spring 2015, , Pages 153-158*

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**Abstract **

In this paper, we have dened and studied a generalized form of topological vector spaces called s-topological vector spaces. s-topological vector spaces are dened by using semi-open sets and semi-continuity in the sense of Levine. Along with other results, it is proved that every s-topological ...
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##### 175. Initial value problems for second order hybrid fuzzy differential equations

*Volume 06, Issue 02 , Spring 2017, , Pages 163-170*