## مرور Journal of Mahani Mathematical Research Center بر اساس عنوان

در حال نمایش موارد 1 - 20 از 194

• #### 1-Designs Constructed from the Groups \$PSL_{2}(81)\$ and \$PSL_{2}(89)\$ ﻿

(2022-05-01)
In this paper, some designs from the primitive permutation representations of the groups \$PSL_2(81)\$ and \$PSL_2(89)\$ are constructed using the Key-Moori Method 1. We determine the automorphism groups of all the obtained ...

• #### \$(3,2)\$-fuzzy UP-subalgebras and \$(3,2)\$-fuzzy UP-filters ﻿

(2022-11-01)
The aim of this article is to apply a \$(3,2)\$-fuzzy set to the UP-subalgebras and UP-filters of UP-algebras. The concepts of \$(3,2)\$-fuzzy UP-subalgebra, \$(3,2)\$ -fuzzy near UP-filter and \$(3,2)\$ -fuzzy UP-filter in ...

• #### An algorithm for a multicriteria optimization problem and its application to a facility location problem ﻿

(2022-11-01)
In this paper, a new algorithm is proposed for solving a multicriteria optimization problem where the feasible set is an \$m-\$dimensional cube. In fact, the idea of the multicriteria big cube small cube method is employed ...

• #### An algorithm for constructing integral row stochastic matrices ﻿

(2022-01-01)
Let  \$\textbf{M}_{n}\$ be  the set of all \$n\$-by-\$n\$ real  matrices, and let  \$\mathbb{R}^{n}\$ be  the set of all \$n\$-by-\$1\$ real (column) vectors. An \$n\$-by-\$n\$ matrix \$R=[r_{ij}]\$ with nonnegative entries is called row ...

• #### ANALYSIS OF COVARIANCE BASED ON FUZZY TEST STATISTIC ﻿

(2013-08-01)
One-way analysis of covariance is a popular and common statisticalmethod, wherein the equality of the means of several random variables whichhave a linear relationship with a random mathematical variable, is ...

• #### Analytic Univalent fucntions defined by Gegenbauer polynomials ﻿

(2023-05-01)
The numerical tools that have outshinning many others in the history of Geometric Function Theory (GFT) are the Chebyshev and Gegenbauer polynomials in the present time. Recently, Gegenbauer polynomials have been used to ...

• #### Analytical expression for the exact curved surface area and volume of hyperboloid of two sheets via Mellin-Barnes type contour integration ﻿

(2023-05-01)
In this article, we aim at obtaining the analytical expression (not previously found and recorded in the literature) for the exact curved surface area of a hyperboloid of two sheets in terms of Appell's double hypergeometric ...

• #### Another look at inheritance of uniform continuity of 1-dimensional aggregation functions by their super-additive transformations ﻿

(2022-11-01)
In an earlier paper by Seliga, Siran and the second author (J. Mahani Math. Res. Center 8 (2019) 37–51) on lifting continuity properties of aggregation functions to their super- and sub-additive transformations it was shown ...

• #### Ant colony optimization with fuzzy-based ensemble of heuristics for ensemble feature selection ﻿

(2023-05-01)
One of the crucial stages in machine learning in high-dimensional datasets is feature selection. Unrelated features weaknesses the efficiency of the model. However, merging several feature selection strategies is routine ...

• #### AN APPLICATION OF DAUBECHIES WAVELET IN DRUG RELEASE MODEL ﻿

(2019-11-01)
In this paper we investigate wavelet-fi nite difference method for solving two-dimensional model of drug release in the cardiovascular tissue from the stent. We use a double tensor product to rich a two dimensional ...

• #### Application of Haar Wavelets in Solving Nonlinear Fractional Fredholm Integro-Differential Equations ﻿

(2013-08-01)
A novel and effective method based on Haar wavelets and Block Pulse Functions (BPFs) is proposed to solve nonlinear Fredholm integro-differential equations of fractional order. The operational matrix of Haar wavelets via ...

• #### APPLICATION OF HAAR WAVELETS IN SOLVING NONLINEAR FRACTIONAL FREDHOLM INTEGRO-DIFFERENTIAL EQUATIONS ﻿

(2013-08-01)
A novel and e ective method based on Haar wavelets and Block Pulse Functions(BPFs) is proposed to solve nonlinear Fredholm integro-di erential equations of fractional order.The operational matrix of Haar wavelets ...

• #### Application of moving kriging interpolation based on the meshless local Petrov-Galerkin (MK-MLPG) method for the two-dimensional time-dependent Schrodinger equation ﻿

(2018-10-01)
‎In this article‎, ‎an efficient numerical technique for solving the two-dimensional time-dependent Schrodinger equation is presented‎. ‎At first‎, ‎we employ the meshless‎‎local Petrov-Galerkin (MLPG) method based ...

• #### An application of s-elementary wavelets in numerical solution of differential and fractional integral equations ﻿

(2022-11-01)
In this article we introduce wavelet sets and consider a special wavelet set in R. We build a basis associated to this type wavelet sets and use operational matrix of this basis to solve nonlinear Riccati differential ...

• #### An approach to change the topology of a topological space with the help of its closed sets in the presence of grills ﻿

(2021-10-01)
The aim of this paper is introduce an approach to convert thetopology of a topological space to another topology(in fact, a coarser topology).For this purpose, considering a closed set P of subsets of a topological space(X; ...

(2012-11-01)

• #### ASSOCIATED CURVES OF THE SPACELIKE CURVE VIA THE BISHOP FRAME OF TYPE-2 IN E₁³ ﻿

(2019-01-01)
The objective of the study in this paper is to define M₁,M₂-direction curves and M₁,M₂-donor curves of the spacelike curve γ via the Bishop frame of type-2 in E₁³. We obtained the necessary and sufficient conditions when ...

• #### Automatic continuity of multiplicative polynomial operators ﻿

(2023-05-01)
This paper deals with the automatic continuity of multiplicative polynomial operators on a class of topological algebras. Several results are derived in this direction. We also support our results by some examples.

• #### The behavior of non-identical and dependent standby components in a coherent‎ system ﻿

(2015-08-01)
‎In this paper‎, ‎a coherent system consisting of non-identical dependent active components and‎ ‎equipped with non-identical dependent standby components is considered‎. ‎The main object of this study is the random quantity‎ ...

• #### BIFURCATION ANALYSIS OF A DDE MODEL OF THE CORAL REEF ﻿

(2016-01-01)
‎In this paper‎, ‎first we discuss a local stability analysis of model was introduced by P‎. ‎J‎. ‎Mumby et‎. ‎al‎. ‎(2007)‎, ‎with \$frac{gM^{2}}{M+T}\$ as the functional response term‎. ‎We conclude that the grazing intensity ...