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Mathematics, Volume 8, Issue 10

2020 October - 216 articles

Cover Story: Multi-agent methods and technology provide adaptive real-time data-clustering based on principles of self-organization of records and clusters. Its benefits are fast reaction time; flexibility; efficiency; an individual approach to each record and cluster; and high performance and scalability. View this paper.
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Articles (216)

  • Article
  • Open Access
19 Citations
4,097 Views
22 Pages

Hydrodynamical Study of Creeping Maxwell Fluid Flow through a Porous Slit with Uniform Reabsorption and Wall Slip

  • Hameed Ullah,
  • Dianchen Lu,
  • Abdul Majeed Siddiqui,
  • Tahira Haroon and
  • Khadija Maqbool

21 October 2020

The present theoretical study investigates the influence of velocity slip characteristics on the plane steady two-dimensional incompressible creeping Maxwell fluid flow passing through a porous slit with uniform reabsorption. This two-dimensional flo...

  • Article
  • Open Access
9 Citations
5,373 Views
23 Pages

Compiled Constructions towards Post-Quantum Group Key Exchange: A Design from Kyber

  • José Ignacio Escribano Pablos,
  • María Isabel González Vasco,
  • Misael Enrique Marriaga and
  • Ángel Luis Pérez del Pozo

21 October 2020

A group authenticated key exchange (GAKE) protocol allows a set of parties belonging to a certain designated group to agree upon a common secret key through an insecure communication network. In the last few years, many new cryptographic tools have b...

  • Article
  • Open Access
13 Citations
3,459 Views
22 Pages

Scale Mixture of Rayleigh Distribution

  • Pilar A. Rivera,
  • Inmaculada Barranco-Chamorro,
  • Diego I. Gallardo and
  • Héctor W. Gómez

20 October 2020

In this paper, the scale mixture of Rayleigh (SMR) distribution is introduced. It is proven that this new model, initially defined as the quotient of two independent random variables, can be expressed as a scale mixture of a Rayleigh and a particular...

  • Article
  • Open Access
9 Citations
3,174 Views
10 Pages

20 October 2020

The article presents a solution to a boundary value problem for a wave equation containing a fractional derivative with respect to a spatial variable. This model is used to describe oscillation processes in a viscoelastic medium, in particular change...

  • Article
  • Open Access
5 Citations
2,237 Views
10 Pages

20 October 2020

In this paper, our goal was to establish the relationship between solutions of local sharp vector variational type inequality and sharp efficient solutions of vector optimization problems, also Minty local sharp vector variational type inequality and...

  • Article
  • Open Access
5 Citations
2,157 Views
12 Pages

20 October 2020

For the perturbed controlled nonlinear delay differential equation with the discontinuous initial condition, a formula of the analytic representation of solution is proved in the left neighborhood of the endpoint of the main interval. In the formula,...

  • Article
  • Open Access
6 Citations
3,386 Views
22 Pages

20 October 2020

Simultaneous feature selection and classification have been explored in the literature to extend the support vector machine (SVM) techniques by adding penalty terms to the loss function directly. However, it is the kernel function that controls the p...

  • Article
  • Open Access
2,443 Views
23 Pages

20 October 2020

We establish a connection between random set theory and Boolean valued analysis by showing that random Borel sets, random Borel functions, and Markov kernels are respectively represented by Borel sets, Borel functions, and Borel probability measures...

  • Article
  • Open Access
1,938 Views
25 Pages

20 October 2020

The main purpose of this paper is to study the global existence and uniqueness of solutions for three-dimensional incompressible magnetic induction equations with Hall effect provided that u0H32+ε+b0H2(0<ε<1) is sufficiently...

  • Article
  • Open Access
7 Citations
3,166 Views
13 Pages

Total Roman Domination Number of Rooted Product Graphs

  • Abel Cabrera Martínez,
  • Suitberto Cabrera García,
  • Andrés Carrión García and
  • Frank A. Hernández Mira

20 October 2020

Let G be a graph with no isolated vertex and f:V(G){0,1,2} a function. If f satisfies that every vertex in the set {vV(G):f(v)=0} is adjacent to at least one vertex in the set {vV(G):f(v)=2}, and if the subgraph induced by the set {...

  • Article
  • Open Access
3 Citations
2,449 Views
15 Pages

20 October 2020

In this paper, we prove two generalized concentration-compactness principles for variable exponent Lebesgue spaces and as an application study the asymptotic behaviour of low energy extremals.

  • Article
  • Open Access
71 Citations
16,634 Views
19 Pages

20 October 2020

The convenience feature of mobile payment has replaced interactions with physical money and reduced transaction time, which better meets the demand of modern people for convenience in life. As mobile payments play an important role in mobile business...

  • Article
  • Open Access
8 Citations
3,674 Views
11 Pages

19 October 2020

Squeezing and phase space coherence are investigated for a bimodal cavity accommodating a two-level atom. The two modes of the cavity are initially in the Barut–Girardello coherent states. This system is studied with the SU(1,1)-algebraic model...

  • Article
  • Open Access
6 Citations
3,538 Views
13 Pages

19 October 2020

Since a firm’s profitability is associated with a degree of risk taking, risk indicators have been extensively treated as exogenous variables and affected firm performance. The level of risk taking should be determined through internal control...

  • Feature Paper
  • Article
  • Open Access
7 Citations
2,900 Views
30 Pages

Some Economic Dynamics Problems for Hybrid Models with Aftereffect

  • Eugene Bravyi,
  • Vladimir Maksimov and
  • Pyotr Simonov

19 October 2020

In this paper, we consider a class of economic dynamics models in the form of linear functional differential systems with continuous and discrete times (hybrid models) that covers many kinds of dynamic models with aftereffect. The focus of attention...

  • Article
  • Open Access
12 Citations
4,107 Views
29 Pages

Modeling and Solving a Latin American University Course Timetabling Problem Instance

  • Oscar Chávez-Bosquez,
  • José Hernández-Torruco,
  • Betania Hernández-Ocaña and
  • Juana Canul-Reich

19 October 2020

Timetabling problem is a complex task that is performed by a number of institutions worldwide, which has been usually addressed as an optimization problem where every approach considers the particular constraints of each institution under considerati...

  • Article
  • Open Access
1 Citations
3,079 Views
17 Pages

Extreme Value Index Estimation by Means of an Inequality Curve

  • Emanuele Taufer,
  • Flavio Santi,
  • Pier Luigi Novi Inverardi,
  • Giuseppe Espa and
  • Maria Michela Dickson

19 October 2020

A characterizing property of Zenga (1984) inequality curve is exploited in order to develop an estimator for the extreme value index of a distribution with regularly varying tail. The approach proposed here has a nice graphical interpretation which p...

  • Article
  • Open Access
9 Citations
2,530 Views
31 Pages

19 October 2020

The higher-order convective Cahn-Hilliard equation describes the evolution of crystal surfaces faceting through surface electromigration, the growing surface faceting, and the evolution of dynamics of phase transitions in ternary oil-water-surfactant...

  • Article
  • Open Access
2,079 Views
12 Pages

19 October 2020

The purpose of this paper is to propose an iterative algorithm for solving the split equality common null point problem (SECNP), which is to find an element of the set of common zero points for a finite family of maximal monotone operators in Hilbert...

  • Article
  • Open Access
11 Citations
4,105 Views
22 Pages

Efficient Implementation of ARX-Based Block Ciphers on 8-Bit AVR Microcontrollers

  • YoungBeom Kim,
  • Hyeokdong Kwon,
  • SangWoo An,
  • Hwajeong Seo and
  • Seog Chung Seo

19 October 2020

As the development of Internet of Things (IoT), the data exchanged through the network has significantly increased. To secure the sensitive data with user’s personal information, it is necessary to encrypt the transmitted data. Since resource-c...

  • Article
  • Open Access
7 Citations
3,974 Views
16 Pages

19 October 2020

In the digital age, the role of information technology and computer processes is growing. This requires refining the development of software by optimizing the communications between program components and seeking effective interaction in the implemen...

  • Article
  • Open Access
6 Citations
2,633 Views
19 Pages

19 October 2020

Fitting a cubic smoothing spline is a typical smoothing method. This paper reveals a principle of duality in the penalized least squares regressions relating to the method. We also provide a number of results derived from them, some of which are illu...

  • Article
  • Open Access
5 Citations
7,181 Views
16 Pages

Nonlinear Dynamics and Control of a Cube Robot

  • Teh-Lu Liao,
  • Sian-Jhe Chen,
  • Cheng-Chang Chiu and
  • Jun-Juh Yan

19 October 2020

The paper aims to solve problems of the mathematical modeling and realization of a cube robot capable of self-bouncing and self-balancing. First, the dynamic model of the cube robot is derived by using the conservation of the angular momentum and the...

  • Article
  • Open Access
48 Citations
7,842 Views
19 Pages

19 October 2020

Mobile payment is a new payment method that provides opportunities for the financial services industry and involves various payment mediums. There are numerous drivers and barriers that influence customers’ willingness to use mobile payment. Pr...

  • Article
  • Open Access
2 Citations
4,364 Views
19 Pages

18 October 2020

Videos have long been viewed through the free choice of customers, but in some cases currently, watching them is absolutely required, for example, in institutions, companies, and education, even if the viewers prefer otherwise. In such cases, the vid...

  • Article
  • Open Access
4 Citations
4,320 Views
30 Pages

18 October 2020

Mathematical analysis of rankings is essential for a wide range of scientific, public, and industrial applications (e.g., group decision-making, organizational methods, R&D sponsorship, recommender systems, voter systems, sports competitions, gra...

  • Article
  • Open Access
9 Citations
4,016 Views
24 Pages

18 October 2020

The main goal of the research is to design a low-cost, performing quadrotor unmaned aerial vehicle (UAV) system. Because of low cost limits, the performance must be ensured by other ways. The present proposal is a quaternion-based estimator used in t...

  • Article
  • Open Access
5 Citations
2,321 Views
22 Pages

17 October 2020

In this paper, an algebraic structure of a type of double cyclic codes is investigated, which covers some existing codes as special cases. The paper presents generic results about the generating polynomials, minimal generating sets, matrices and dual...

  • Article
  • Open Access
13 Citations
4,698 Views
21 Pages

Particle Swarm Optimization for Predicting the Development Effort of Software Projects

  • Mariana Dayanara Alanis-Tamez,
  • Cuauhtémoc López-Martín and
  • Yenny Villuendas-Rey

17 October 2020

Software project planning includes as one of its main activities software development effort prediction (SDEP). Effort (measured in person-hours) is useful to budget and bidding the projects. It corresponds to one of the variables most predicted, act...

  • Article
  • Open Access
103 Citations
7,423 Views
24 Pages

Binary Whale Optimization Algorithm for Dimensionality Reduction

  • Abdelazim G. Hussien,
  • Diego Oliva,
  • Essam H. Houssein,
  • Angel A. Juan and
  • Xu Yu

17 October 2020

Feature selection (FS) was regarded as a global combinatorial optimization problem. FS is used to simplify and enhance the quality of high-dimensional datasets by selecting prominent features and removing irrelevant and redundant data to provide good...

  • Article
  • Open Access
7 Citations
3,356 Views
29 Pages

A Set Based Newton Method for the Averaged Hausdorff Distance for Multi-Objective Reference Set Problems

  • Lourdes Uribe,
  • Johan M Bogoya,
  • Andrés Vargas,
  • Adriana Lara,
  • Günter Rudolph and
  • Oliver Schütze

17 October 2020

Multi-objective optimization problems (MOPs) naturally arise in many applications. Since for such problems one can expect an entire set of optimal solutions, a common task in set based multi-objective optimization is to compute N solutions along the...

  • Article
  • Open Access
3 Citations
2,200 Views
14 Pages

Stochastic Aspects of Proportional Vitalities Model

  • Mansour Shrahili,
  • Abdulhakim A. Albabtain,
  • Mohamed Kayid and
  • Zahra Kaabi

17 October 2020

In this paper, a family of models requiring proportional mean life vitalities is considered. The problem of estimation of the parameter(s) of the model is studied in two cases of known and unknown baselines along with some simulation studies to detec...

  • Article
  • Open Access
3 Citations
2,318 Views
18 Pages

17 October 2020

In this paper, we study a class of constrained variational-hemivariational inequality problems with nonconvex sets which are star-shaped with respect to a certain ball in a reflexive Banach space. The inequality is a fully nonconvex counterpart of th...

  • Article
  • Open Access
1 Citations
2,405 Views
20 Pages

On Singular Distributions With Statistical Structure

  • Paul Popescu,
  • Vladimir Rovenski and
  • Sergey Stepanov

17 October 2020

In this paper, we extend our previous study regarding a Riemannian manifold endowed with a singular (or regular) distribution, generalizing Bochner’s technique and a statistical structure. Following the construction of an almost Lie algebroid,...

  • Article
  • Open Access
11 Citations
3,838 Views
13 Pages

17 October 2020

The current paper analyzes a competition of the Cournot duopoly game whose players (firms) are heterogeneous in a market with isoelastic demand functions and linear costs. The first firm adopts a rationally-based gradient mechanism while the second o...

  • Article
  • Open Access
2,103 Views
5 Pages

16 October 2020

Let Fn be the nth Fibonacci number. The order of appearance z(n) of a natural number n is defined as the smallest positive integer k such that Fk0(modn). In this paper, we shall find all positive solutions of the Diophantine equation z(φ(n...

  • Article
  • Open Access
11 Citations
3,434 Views
11 Pages

Inertial Neural Networks with Unpredictable Oscillations

  • Marat Akhmet,
  • Madina Tleubergenova and
  • Akylbek Zhamanshin

16 October 2020

In this paper, inertial neural networks are under investigation, that is, the second order differential equations. The recently introduced new type of motions, unpredictable oscillations, are considered for the models. The motions continue a line of...

  • Article
  • Open Access
8 Citations
3,502 Views
16 Pages

Unpredictable Solutions of Linear Impulsive Systems

  • Marat Akhmet,
  • Madina Tleubergenova,
  • Mehmet Onur Fen and
  • Zakhira Nugayeva

16 October 2020

We consider a new type of oscillations of discontinuous unpredictable solutions for linear impulsive nonhomogeneous systems. The models under investigation are with unpredictable perturbations. The definition of a piecewise continuous unpredictable f...

  • Review
  • Open Access
157 Citations
23,995 Views
25 Pages

Data Science in Economics: Comprehensive Review of Advanced Machine Learning and Deep Learning Methods

  • Saeed Nosratabadi,
  • Amirhosein Mosavi,
  • Puhong Duan,
  • Pedram Ghamisi,
  • Ferdinand Filip,
  • Shahab S. Band,
  • Uwe Reuter,
  • Joao Gama and
  • Amir H. Gandomi

16 October 2020

This paper provides a comprehensive state-of-the-art investigation of the recent advances in data science in emerging economic applications. The analysis is performed on the novel data science methods in four individual classes of deep learning model...

  • Article
  • Open Access
5 Citations
3,106 Views
10 Pages

Fixed Point Results of Expansive Mappings in Metric Spaces

  • Seher Sultan Yeşilkaya and
  • Cafer Aydın

16 October 2020

In this study, we introduce the concept of θ-expansive mapping in ordered metric spaces and prove a fixed point theorem for such mappings. We give some fixed point results for θ-expansive mapping in metric spaces and prove fixed point the...

  • Article
  • Open Access
8 Citations
3,198 Views
24 Pages

Box-Cox Gamma-G Family of Distributions: Theory and Applications

  • Abdulhakim A. Al-Babtain,
  • Ibrahim Elbatal,
  • Christophe Chesneau and
  • Farrukh Jamal

16 October 2020

This paper is devoted to a new class of distributions called the Box-Cox gamma-G family. It is a natural generalization of the useful Ristić–Balakrishnan-G family of distributions, containing a wide variety of power gamma-G distributions, including t...

  • Article
  • Open Access
2 Citations
2,355 Views
17 Pages

16 October 2020

We study first order linear impulsive delay differential equations with periodic coefficients and constant delays. This study presents some new results on the asymptotic behavior and stability. Thus, a proper real root was used for a representative c...

  • Article
  • Open Access
10 Citations
3,426 Views
18 Pages

Approximations in Performance Analysis of a Controllable Queueing System with Heterogeneous Servers

  • Dmitry Efrosinin,
  • Natalia Stepanova,
  • Janos Sztrik and
  • Andreas Plank

16 October 2020

The paper studies a controllable multi-server heterogeneous queueing system where servers operate at different service rates without preemption, i.e., the service times are uninterrupted. The optimal control policy allocates the customers between the...

  • Article
  • Open Access
22 Citations
37,668 Views
14 Pages

The Impact of Teamwork on an Organization’s Performance: A Cooperative Game’s Approach

  • Gholamreza Askari,
  • Nader Asghri,
  • Madjid Eshaghi Gordji,
  • Heshmatolah Asgari,
  • José António Filipe and
  • Adel Azar

16 October 2020

In this article, we study the impact of teamwork on an organization’s performance, considering a cooperative game’s framework. To promote teamwork culture, performance indexes were considered both individually and collectively, and by com...

  • Article
  • Open Access
4 Citations
2,146 Views
16 Pages

16 October 2020

The present paper aims to construct an inequality for bi-warped product submanifolds in a special class of almost metric manifolds, namely nearly Kenmotsu manifolds. As geometric applications, some exceptional cases that generalized several other ine...

  • Article
  • Open Access
17 Citations
3,003 Views
21 Pages

Hybrid TODIM Method for Law Enforcement Possibility Evaluation of Judgment Debtor

  • Zhenyu Zhang,
  • Jie Lin,
  • Huirong Zhang,
  • Shuangsheng Wu and
  • Dapei Jiang

16 October 2020

The phenomenon of the judgment debtor evading the execution of legal documents and concealing his property by improper means has become increasingly prominent in China, which seriously affects the realization of the people’s legitimate rights a...

  • Article
  • Open Access
13 Citations
2,013 Views
13 Pages

16 October 2020

In this paper, we investigate the (2 + 1)-dimensional Hirota–Satsuma–Ito (HSI) shallow water wave model. By introducing a small perturbation parameter ϵ, an extended (2 + 1)-dimensional HSI equation is derived. Further, based on the Hirot...

  • Article
  • Open Access
2 Citations
2,750 Views
15 Pages

A New Continuous-Discrete Fuzzy Model and Its Application in Finance

  • Hoang Viet Long,
  • Haifa Bin Jebreen and
  • Y. Chalco-Cano

16 October 2020

In this paper, we propose a fuzzy differential-difference equation for modeling of mixed continuous-discrete phenomena. In the special case, we present the general solution of linear fuzzy differential-difference equations. The dynamical process in t...

  • Article
  • Open Access
26 Citations
6,310 Views
11 Pages

16 October 2020

The importance of individuals and groups in networks is modeled by various centrality measures. Additionally, Freeman’s centralization is a way to normalize any given centrality or group centrality measure, which enables us to compare individua...

  • Article
  • Open Access
8 Citations
2,231 Views
13 Pages

An Optimal Derivative-Free Ostrowski’s Scheme for Multiple Roots of Nonlinear Equations

  • Ramandeep Behl,
  • Samaher Khalaf Alharbi,
  • Fouad Othman Mallawi and
  • Mehdi Salimi

16 October 2020

Finding higher-order optimal derivative-free methods for multiple roots (m2) of nonlinear expressions is one of the most fascinating and difficult problems in the area of numerical analysis and Computational mathematics. In this study, we introdu...

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Mathematics - ISSN 2227-7390