Articles

Some integrals involving k gamma and k digamma function

In this paper, some new integrals involving k gamma function and k digamma function have been established. An integral is established involving k gamma function, and its special values are discussed. Similarly, s...

Authors: Saeed Ahmed

ψ*-closed sets in fuzzy topological spaces

In this paper, we introduce a new class of fuzzy sets, namely, fuzzy ψ*-closed sets for fuzzy topological spaces, and some of their properties have been proved. Further, we introduce fuzzy ψ*-continuous, fuzzy ψ*

Authors: M. A. Abd Allah and A. S. Nawar

The searching algorithm for detecting a Markovian target based on maximizing the discounted effort reward search

This paper presents the searching algorithm to detect a Markovian target which moves randomly in M-cells. Our algorithm is based on maximizing the discounted effort reward search. At each fixed number of time int...

Authors: Mohamed Abd Allah El-Hadidy

Fuzzy rough sets with a fuzzy ideal

In this paper, we defined the fuzzy upper, fuzzy lower, and fuzzy boundary sets of a rough fuzzy set λ in a fuzzy approximation space (X,R). Based on λ and R, we introduced the fuzzy ideal approximation interior ...

Authors: Ismail Ibedou and S. E. Abbas

Analysis of the finiteness for the first collision time between two randomly moving particles

The finiteness of the collision time between two different randomly moving particles is presented by providing more useful analysis that gives stronger and finite moment. The triangular arrays and the uniform ...

Authors: Alaa A. Alzulaibani

Seventh order hybrid block method for solution of first order stiff systems of initial value problems

A hybrid second derivative three-step method of order 7 is proposed for solving first order stiff differential equations. The complementary and main methods are generated from a single continuous scheme throug...

Authors: O. A. Akinfenwa, R. I. Abdulganiy, B. I. Akinnukawe and S. A. Okunuga

Application of a subordination theorem associated with certain new generalized subclasses of analytic and univalent functions

The prime focus of the present work is to investigate some fascinating relations of some analytic and univalent functions using a subordination theorem.

Authors: J. O. Hamzat and R. M. El-Ashwah

Effects of Navier slip on a steady flow of an incompressible viscous fluid confined within spirally enhanced channel

Investigation of the effect of slip on natural convective flow and heat transfer of a viscous incompressible fluid confined within a channel made up of a long vertical wavy wall and a parallel flat wall is car...

Authors: J. A. Gbadeyan, J. U. Abubakar and T. L. Oyekunle

Dot product graphs and domination number

Let A be a commutative ring with 1≠0 and R=A×A. The unit dot product graph of R is defined to be the undirected graph UD(R) with the multiplicative group of units in R, denoted by U(R), as its vertex set. Two dis...

Authors: Dina Saleh and Nefertiti Megahed

Convergence analysis and parity conservation of a new form of a quadratic explicit spline with applications to integral equations

In this study, a new form of a quadratic spline is obtained, where the coefficients are determined explicitly by variational methods. Convergence is studied and parity conservation is demonstrated. Finally, th...

Authors: Alberto José Ferrari, Luis Pedro Lara and Eduardo Adrian Santillan Marcus

The T–R {Y} power series family of probability distributions

A new family of univariate probability distributions called the T − R {Y} power series family of probability distributions is introduced in this paper by compounding the T − R {Y} family of distributions and the ...

Authors: Patrick Osatohanmwen, Francis O. Oyegue and Sunday M. Ogbonmwan

On the inverse sum indeg index of some graph operations

Topological indices are the molecular descriptors that describe the structures of chemical compounds. They are used in isomer discrimination, structure-property relationship, and structure-activity relations. ...

Authors: Özge Çolakoǧlu Havare

Extending the applicability of a third-order scheme with Lipschitz and Hölder continuous derivative in Banach spaces

We extend the applicability of a cubically convergent nonlinear system solver using Lipschitz continuous first-order Fréchet derivative in Banach spaces. This analysis avoids the usual application of Taylor ex...

Authors: Debasis Sharma and Sanjaya Kumar Parhi

Generalized involute and evolute curves of equiform spacelike curves with a timelike equiform principal normal in \(E_{1}^{3}\)

Equiform geometry is considered as a generalization of the other geometries. In this paper, involute and evolute curves are studied in the case of the curve α is an equiform spacelike with a timelike equiform pri...

Authors: A. Elsharkawy

Further results on Parity Combination Cordial Labeling

Authors: Mohamed Seoud and Mohamed Aboshady

Generalized wclosed sets in biweak structure spaces

As a generalization of the classes of gwclosed (resp. gwopen, sgwclosed) sets in a weak structure space (X,w), the notions of ij-generalized wclosed (resp. ij-generalized wopen, ij-strongly generalized wclosed) s...

Authors: H. M. Abu-Donia and Rodyna A. Hosny

New traveling wave solutions of MHD micropolar fluid in porous medium

This paper aims to determine the exact solutions of non-Newtonian fluid namely micropolar fluid with MHD in a porous medium by traveling wave method. The governing equations of incompressible micropolar fluid ...

Authors: Muhammad Jamil and Arsalan Ahmed

Reduction based on similarity and decision-making

Reduction of attributes in an information system (IS) is a basic step for IS analysis. The original rough set model of Pawlak depends on an equivalence relation which is strongly constraints. This paper aims t...

Authors: Abd El Fattah A. El Atik

Further results on edge even graceful labeling of the join of two graphs

In this paper, we investigated the edge even graceful labeling property of the join of two graphs. A function f is called an edge even graceful labeling of a graph G=(V(G),E(G)) with p=|V(G)| vertices and q=|E(G)...

Authors: Mohamed R. Zeen El Deen and Nora A. Omar

General-type proximal point algorithm for solving inclusion and fixed point problems with composite operators

The main purpose of this paper is to introduce a new general-type proximal point algorithm for finding a common element of the set of solutions of monotone inclusion problem, the set of minimizers of a convex ...

Authors: T. M. M. Sow

Application of Adomian decomposition method to free vibration analysis of thin isotropic rectangular plates submerged in fluid

Investigating dynamic free vibration response of isotropic thin rectangular plate resting on two-parameter elastic foundation is of interest in the field of geotechnics, structure, highway, railway and mechani...

Authors: Gbeminiyi M. Sobamowo, Saheed A. Salawu and Ahmed A. Yinusa

Nano ∧_β-sets and nano ∧_β-continuity

The concept of nano near open sets was originally proposed by Thivagar and Richard (Int. J. Math. Stat. Inven 1:31-37). The main aspect of this paper is to introduce a new sort of nano near open sets namely, n...

Authors: M. Hosny

Roles of nanoparticles and heat generation/absorption on MHD flow of Ag–H₂O nanofluid via porous stretching/shrinking convergent/divergent channel

This article unveils the combined impact of heat generation/absorption and Joule heating on MHD flow of Ag-H₂O nanofluid into a porous stretching/shrinking divergent/convergent channel with viscous dissipation an...

Authors: Ashish Mishra, Alok Kumar Pandey, Ali J. Chamkha and Manoj Kumar

Accelerated fitted operator finite difference method for singularly perturbed delay differential equations with non-local boundary condition

In this paper, accelerated fitted finite difference method for solving singularly perturbed delay differential equation with non-local boundary condition is considered. To treat the non-local boundary conditio...

Authors: Habtamu Garoma Debela and Gemechis File Duressa

Optimal alternative for suitability of S-boxes to image encryption based on m-polar fuzzy soft set decision-making criterion

Our aim in this work is to improve the design and model of real-life applications. We put forward a standard based on m-polar fuzzy soft set decision-making criterion to examine the optimal alternative for the su...

Authors: Mohammed M. Khalaf

A matrix approach for stationary analysis fluid model driven by an M/M/1/N queue with discouraged arrivals

In this paper, a fluid queue driven by truncated queue with discouraged arrivals is considered. Using the efficient matrix technique, the expressions of the steady-state distribution of both the buffer content...

Authors: Mahdy S. EL-paoumy and Taha Radwan

Generalization of soft topological groups

There exists two different definitions for soft topological groups, the first due to Hida and the other due to Tariq Shah. In this paper, we give a generalization for both of them, and also, we study the topol...

Authors: O. Tantawy, S. A. Kandil and A ElShamy

Nonstandard theta Milstein method for solving stochastic multi-strain tuberculosis model

In this article, a novel stochastic multi-strain tuberculosis model is presented. Numerical simulations for this model are the main aim of this work. A non-standard theta Milstein method is constructed to stud...

Authors: Nasser H. Sweilam and Seham M. AL-Mekhlafi

On a discussion of Volterra–Fredholm integral equation with discontinuous kernel

The purpose of this paper is to establish the general solution of a Volterra–Fredholm integral equation with discontinuous kernel in a Banach space. Banach’s fixed point theorem is used to prove the existence ...

Authors: M. A. Abdou, A. A. Soliman and M. A. Abdel–Aty

Bivariate general exponential models with stress-strength reliability application

In this paper, we introduce two families of general bivariate distributions. We refer to these families as general bivariate exponential family and general bivariate inverse exponential family. Many bivariate ...

Authors: S. K. khames and N. A. Mokhlis

Coupled coincidence point technique and its application for solving nonlinear integral equations in RPOCbML spaces

The aim of this paper is to obtain some new important consequences related to coupled coincidence points via C-class functions in the context of a regular partial ordered complete b-metric-like space (for short, ...

Authors: Hasanen A. Hammad, Dhekra M. Albaqeri and Rashwan A. Rashwan

MHD slip flow of upper-convected Maxwell nanofluid over a stretching sheet with chemical reaction

The present study scrutinizes slip effects and stagnation point flows of upper-convected Maxwell fluid past a stretching sheet. The non-linear ordinary differential equations are obtained from the governing pa...

Authors: Wubshet Ibrahim and Mekonnen Negera

On the perturbation analysis of the maximal solution for the matrix equation \( X-\overset{m}{\sum \limits_{i=1}}{A}_i^{\ast}\kern0.1em {X}^{-1}\kern0.1em {A}_i+\sum \limits_{j=1}^n{B}_j^{\ast}\kern0.1em {X}^{-1}\kern0.1em {B}_j=I \)

Authors: Mohamed A. Ramadan and Naglaa M. El–Shazly

Approximations of some near open sets in ideal topological spaces

In this paper, we introduce the concepts of j-ideal lower and j-ideal upper approximations as a generalization of approximation by Pawlak by using j-ideal open sets where j ∈ {α, S, P, γ, β, ⋀_β}. Some of their ba...

Authors: A. S. Nawar

Self adaptive spectral conjugate gradient method for solving nonlinear monotone equations

In this paper, we propose a self adaptive spectral conjugate gradient-based projection method for systems of nonlinear monotone equations. Based on its modest memory requirement and its efficiency, the method ...

Authors: M. Koorapetse and P. Kaelo

An algorithm for solving the bi-objective median path-shaped facility on a tree network

In this paper, an algorithm for the bi-objective median path (BMP) problem on a tree network is considered. The algorithm is based on the two-phase method which can compute all Pareto solutions for the BMP pro...

Authors: Abdallah Aboutahoun and Fatma El-Safty

Existence of cooperative search technique to find a Brownian target

This article aims to study the existence of the cooperative search technique to find a Brownian target. We have 2n cooperative searchers coordinate their search to find a Brownian target that moves on one of n di...

Authors: Mohamed Abd Allah El-Hadidy

Hall and ion slip effects on Unsteady MHD Convective Rotating flow of Nanofluids—Application in Biomedical Engineering

There is an intense worldwide activity in the development of instrumentation for medical diagnosis and bioscreening based on biological labeling and detection of nanoparticles. Based on this profound observati...

Authors: M. Veera Krishna and Ali J. Chamkha

A soft set theoretic approach to an AG-groupoid via ideal theory with applications

In this paper, we study the structural properties of a non-associative algebraic structure called an AG-groupoid by using soft set theory. We characterize a right regular class of an AG-groupoid in terms of so...

Authors: Faisal Yousafzai and Mohammed M. Khalaf

An efficient steganographic technique for hiding data

Steganography is the technique for hiding data and aims to hide data in such a way that any eavesdropper cannot observe any changes in the original media. The least significant bit (LSB) is one of the most pub...

Authors: Dalia Nashat and Loay Mamdouh

Effect of internal heat generation on free convective power-law variable temperature past a vertical plate considering exponential variable viscosity and thermal conductivity

The aim of this paper is to study the free convection boundary-layer flow with heat generation and variable fluid properties past a vertical plate. We incorporated the heat generation and variable viscosity ar...

Authors: M. Ferdows, M. G. Murtaza and MD. Shamshuddin

On conformally doubly warped product Finsler manifold

The aim of the present paper is to introduce the notion of conformally doubly warped product Finsler manifold (CDWPF). For such a Finsler manifold, the coefficients of Barthel connection and its curvature tens...

Authors: A. Soleiman and A.M. Abdelsalam

Intuitionistic fuzzy relations compatible with the group Z_n

In this paper, we define the compatibility of finite intuitionistic fuzzy relations with the group Z_n and prove some of their fundamental properties. We show that some compositions of Z_n-compatible intuitionistic...

Authors: E. G. Emam

Parameter-dependent transmission dynamics and optimal control of foot and mouth disease in a contaminated environment

The problem of foot and mouth disease (FMD) is of serious concern to the livestock sector in most nations, especially in developing countries. This paper presents the formulation and analysis of a deterministi...

Authors: Francis Mugabi, Joseph Mugisha, Betty Nannyonga, Henry Kasumba and Margaret Tusiime

Mixed convection flow of nanofluid with Hall and ion-slip effects using spectral relaxation method

In this article, the Hall and ion-slip effects on a mixed convection flow of an electrically conducting nanofluid over a stretching sheet in a permeable medium have been discussed. Using the similarity transfo...

Authors: Wubshet Ibrahim and Temesgen Anbessa

Multiset filters

A multiset is a collection of objects in which repetition of elements is essential. This paper is an attempt to generalize the notion of filters in the multiset context. In addition, many deviations between mu...

Authors: Amr Zakaria, Sunil Jacob John and K. P. Girish

Fourth-order stable central difference with Richardson extrapolation method for second-order self-adjoint singularly perturbed boundary value problems

This study introduces a stable central difference method for solving second-order self-adjoint singularly perturbed boundary value problems. First, the solution domain is discretized. Then, the derivatives in ...

Authors: Muslima Kedir Siraj, Gemechis File Duressa and Tesfaye Aga Bullo

Testing exponentiality against renewal new better than used in Laplace transform order: applications in reliability

In this paper, a new class of life distribution is proposed, named renewal new better than used in Laplace transform order (RNBUL). The test statistic for testing exponentiality versus (RNBUL) based on U-statisti...

Authors: M. A. W. Mahmoud, L. S. Diab and D. M. Radi

Flow of non-Newtonian magneto-fluid with gold and alumina nanoparticles through a non-Darcian porous medium

This paper is centered on a numerical solution of non-Newtonian Casson magneto-nanofluid flow underlying an axisymmetric surface through a non-Darcian porous medium with heat generation/absorption. Using simil...

Authors: N. S. Elgazery

Using the artificial neural networks for prediction and validating solar radiation

The main objective of this paper is to employ the artificial neural network (ANN) models for validating and predicting global solar radiation (GSR) on a horizontal surface of three Egyptian cities. The feedfor...

Authors: Zahraa E. Mohamed