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SCIREA Journal of Mathematics — Open Access Journal

SCIREA Journal of Mathematics is an international, scientific peer-reviewed open access journal published online by SCIREA.

Open Access free for readers, with article processing charges (APC) paid by authors or their institutions.

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Rapid publication: manuscripts are peer-reviewed and a first decision provided to authors approximately 20 days after submission; acceptance to publication is undertaken in 5 days.

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Volume 6, Issue 3, June 2021

Open Access
Weicheng Xu, Zhendong Zhang, Xiaoyi Feng
Abstract: This study was devoted to extend Cav(u) theorem for repeated games with one-sided incomplete information. The model considered in this paper was based on the typical Aumann-Maschler model. According to the properties of Wasserstein distance, the Cav(u) theorem for repeated games with one-sided incomplete information was gen [...] Read more.
Abstract      ReferencesPDF (318 K)   July 28, 2021     10 Downloads    287 Views

Volume 6, Issue 2, April 2021

Open Access
Jiachen Lv, Yuqiang Feng
Abstract: B-Banach space is an extension of Banach space, which provides a suitable framework for studying many analytical problems. The uniform boundedness theorem is is the basic theorem in functional analysis and has many important applications in many field, such as matrix analysis, operator theory, and numerical analysis. In this [...] Read more.
Abstract      ReferencesPDF (192 K)   May 17, 2021     22 Downloads    331 Views

Volume 6, Issue 1, February 2021

Open Access
Rusudan Bitsadze
Abstract: For the well-known nonlinear oscillation equation, we consider a nonlinear mixed characteristic problem, which is a nonlinear analogue of the Darboux problem and consists in the simultaneous definition of a solution and its regular propagation domain. The question of solvability of the formulated problem is solved by the me [...] Read more.
Abstract      ReferencesPDF (221 K)   March 8, 2021     104 Downloads    534 Views
Open Access
Eduardo Martinez Escobedo
Abstract: Geneva mechanisms have been used to obtain an output intermittent circular motion by the means of a continuous circular motion. It offers the option of having a rest time with between motions in the output link. This paper is intended to provide the geometric resolution of this mechanisms via number of steps and diameter of [...] Read more.
Abstract      ReferencesPDF (644 K)   March 8, 2021     103 Downloads    589 Views

Volume 5, Issue 5, October 2020

Open Access
Ferenc Juhász
Abstract: A block random model, studied earlier in economics is introduced for biological sciences. Two approaches which handle participants as species and participants as individuals give pictures on processes from different points of view. In ecology it can provide an opportunity for some intervention to avoid development of danger [...] Read more.
Abstract      ReferencesPDF (299 K)   December 27, 2020     127 Downloads    966 Views

Volume 5, Issue 4, August 2020

Open Access
Sarah Haqi Abdulwahid, Alaa. M. F. AL. Jumaili
Abstract: The purpose of the present paper is to consider new classes of generalized compact spaces called Еc-(resp. δ-ßc)-compact spaces via Еc-(resp. δ-ßc)-open sets respectively. Several characterizations and fundamental properties concerning of these forms of spaces are obtained. Moreover, some new types of separation axioms in t [...] Read more.
Abstract      ReferencesPDF (864 K)   September 25, 2020     138 Downloads    777 Views

Volume 5, Issue 3, June 2020

Open Access
Alicia C. Sánchez
Abstract: The RAFU functions have been studied in [1, 2, 3, 4, 5 and 6]. They are useful in Approximation Theory to approach continuous functions and to reconstruct continuous functions. In this work we will use the RAFU functions to turn a discontinuous function into a continuous function. We will show the explicit expression of a s [...] Read more.
Abstract      ReferencesPDF (824 K)   September 25, 2020     122 Downloads    755 Views

Volume 5, Issue 2, April 2020

Open Access
S. M. Alata, O. T. Wahab, I. F. Usamot
Abstract: Common fixed point, generalized (ψ,φ) weak contraction, complete metric spaces [...] Read more.
Abstract      ReferencesPDF (390 K)   May 10, 2020     107 Downloads    1067 Views
Open Access
Junjian Liu
Abstract: Abstract: The order of addition experiment is increasingly used in many scientific fields, such as chemistry,biology and medicine. The existing literature considers order of addition rather than amount combination. In this paper, we consider order of addition experiments with amount effects. A new proposed model incorporate [...] Read more.
Abstract      ReferencesPDF (280 K)   June 19, 2020     109 Downloads    972 Views

Volume 5, Issue 1, February 2020

Open Access
Zhu Rong Rong
Abstract: Background The twin prime conjecture is considered as a classic puzzle in the history of number theory and one of the most famous conjectures, which has always puzzled us. At the International Congress of Mathematicians in 1900, mathematician David Hilbert presented 23 important mathematical problems and conjectures [...] Read more.
Abstract      ReferencesPDF (473 K)   February 10, 2020     128 Downloads    1593 Views

Volume 4, Issue 6, December 2019

Open Access
Hamza ZEMRANE, Youssef BADDI, Abderrahim HASBI
Abstract: The development of Smart Cities that know our word today depends on the development of the IoT, in this context IoT are applied to develop and optimize may current and future sectors of activities like: health care, home automation, transportation, public services and others. The major issues of safety and comfort in trad [...] Read more.
Abstract      ReferencesPDF (1269 K)   December 19, 2019     146 Downloads    1063 Views
Open Access
H.-Q. Liu
Abstract: A counterexample is given in Complex analysis. [...] Read more.
Abstract      ReferencesPDF (358 K)   December 22, 2019     141 Downloads    1374 Views

Volume 4, Issue 5, October 2019

Open Access
Ahmed N. K. Alfarra, Hui Xiaofeng, Ehsan Chitsaz, Jaleel Ahmed
Abstract: In this paper, we investigate the countercyclical buffer addressed in the Basel III framework. The ‘countercyclical buffer ‘targets at the extenuation of the supposedly harmful behavior of bank capital. The size of the buffer after the stepwise growths during the application stage finally reaches 2.5%. Therefore, the presen [...] Read more.
Abstract      ReferencesPDF (235 K)   August 19, 2019     170 Downloads    1769 Views
Open Access
Abstract: A Pell Fermat equation and its two classes of solutions are discussed. We give a formula for the pairs of positive solutions, written with the Pell numbers, and some new identities involving these numbers. We build an invariant modulo 4 for each class of solutions. [...] Read more.
Abstract      ReferencesPDF (312 K)   November 4, 2019     127 Downloads    1735 Views
Open Access
Bohdan Chapaliuk, Yuriy Zaychenko
Abstract: Lung cancer is one of the most aggressive types of cancer, and the possibility to detect it at an early stage can save a lot of patient lives worldwide. Building an automated lung cancer detection system can help to speed up the process of cancer detection and save human lives. This article considers three different approac [...] Read more.
Abstract      ReferencesPDF (459 K)   November 7, 2019     129 Downloads    1713 Views

Volume 4, Issue 4, August 2019

Open Access
Fang-Ming Hsu, Chien-Ho Liao, Qian-Feng Liu
Abstract: Earning profit is always the paramount issue for investors. Many factors have been proved to affect stock returns, although information uncertainty is rarely discussed. This study examines how the effect of investors’ sentiments on stock returns and trading volumes is moderated by information uncertainty. Text mining techno [...] Read more.
Abstract      ReferencesPDF (421 K)   July 15, 2019     200 Downloads    1767 Views
Open Access
D.G. Zaccari, C.J. AlturriaLanzardo, J.E. Pérez, J.C. Cesco
Abstract: In this paper, we present two new approximants for the Error Function. The starting point for obtaining them, is to use two alternative integral representations involving improper integrals. Both integrands include the function. Therefore, by replacing by its truncated Taylor's expansion, we obtain a rational approximan [...] Read more.
Abstract      ReferencesPDF (310 K)   August 5, 2019     197 Downloads    1644 Views

Volume 4, Issue 3, June 2019

Open Access
Anika Ferdous, Tania S. Khaleque
Abstract: The present study considered the thermal convection of ferrofluids along a flat plate subject to uniform heat flux and slip velocity in the presence of radiation with a magnetic field applied in the transverse direction. Two different types of ferrofluids are considered: one magnetic nanoparticle (Fe_3 O_4) and one non-magn [...] Read more.
Abstract      ReferencesPDF (985 K)   June 4, 2019     267 Downloads    2092 Views

Volume 4, Issue 2, April 2019

Open Access
Xiaoyang Zheng, Yuling Zeng, Qiulin Huang, Chengyou Luo, Wei wang
Abstract: The Crank-Nicolson and upwind difference schemes are used to solve the one dimensional convection-diffusion equation. Then the numerical solutions obtained and the exact solution are implemented to estimate the parameters, i.e. the convection and diffusion coefficients in this type equation by the least squares method. The [...] Read more.
Abstract      ReferencesPDF (1442 K)   April 26, 2019     303 Downloads    2009 Views
Open Access
Shinemin Lin, Lewis Hall
Abstract: On April 12, 2018 Dr. Ana-Maria Croica gave a presentation as NSF-Target Infusion Program Seminar Series. Her topic is “An Optimal Control Model to Reduce and Eradicate Anthrax Disease in Herbivorous Animals. This research is based on Saad-Roy’s Mathematical Model of Anthrax Transmission in Animal Population. I was impre [...] Read more.
Abstract      ReferencesPDF (1779 K)   May 27, 2019     255 Downloads    2041 Views

Volume 4, Issue 1, February 2019

Open Access
Peter Kopanov, Miroslav Marinov, Atakan Salimov
Abstract: In this paper we consider cases of the existence of the moments of functions of random variables supported on a bounded interval. Our attention is restricted to the tan function, as a generalization of the Cauchy distribution which is infact the result of applying this function to a uniformly distributed variable. [...] Read more.
Abstract      ReferencesPDF (207 K)   March 23, 2019     287 Downloads    2496 Views
Open Access
Guanghai Tang, Ruili Chu
Abstract: To find out the impact of Internet on Residents’ Consumption Structure and Regional Differences, panel data analysis and experimental study were used to analyze China’s provincial panel data from 2003 to 2016. The results show that from the overall level of the country, the Internet development plays a significant role in p [...] Read more.
Abstract      ReferencesPDF (324 K)   April 9, 2019     207 Downloads    2534 Views

Volume 3, Issue 3, June 2018

Open Access
WOLF Marc, WOLF François
Abstract: We study the composite odd numbers via their indices with a function ranging through all of them. This mapping allows us to demonstrate that the set of these indices are described with two families of finite sequences with arithmetic differences. Composite odd numbers are then shown to be obtained as differences of two squa [...] Read more.
Abstract      ReferencesPDF (623 K)   August 2, 2018     465 Downloads    2783 Views
Open Access
WOLF Marc, WOLF François, LE COZ Corentin
Abstract: We propose a new algorithm solving the extended gcd problem, which provides a solution minimizing one of the two coordinates. The algorithm relies on elementary arithmetic properties. [...] Read more.
Abstract      ReferencesPDF (269 K)   August 2, 2018     363 Downloads    2468 Views

Volume 3, Issue 2, April 2018

Open Access
Ayman Waziry
Abstract: Science is a matter of asking for information by specifying the difference between fact and opinion. Fact in a scientific context is a generally accepted reality, but still open to scientific inquiry, as opposed to an absolute truth, which is not a part of science. The hypotheses and theories are generally based on objectiv [...] Read more.
Abstract      ReferencesPDF (4728 K)   April 24, 2018     2327 Downloads    14126 Views

Volume 3, Issue 1, February 2018

Open Access
Yeong-Jeu Sun
Abstract: In this paper, the existence of limit cycles for a class of nonlinear systems is explored. Based on the time-domain approach with differential and integral inequalities, the phenomenon of the stable limit cycle can be accurately verified for such nonlinear systems. Furthermore, the exponentially stable limit cycles, frequen [...] Read more.
Abstract      ReferencesPDF (195 K)   December 30, 2017     391 Downloads    2477 Views
Open Access
Lázaro J. Miranda Díaz
Abstract: Radical arithmetic electronic controllers for automatic control of industrial processes, base their operating principle on the use of new mathematical equations deduced specifically for this purpose and they have been reviewed and approved by MsC. Maria Victoria Mederos, professor at the Faculty of mathematics and computer [...] Read more.
Abstract      ReferencesPDF (317 K)   January 7, 2018     262 Downloads    2489 Views
Open Access
Alexander V. Evako
Abstract: In the present paper, we study basic properties of digital n-dimensional manifolds and digital simply connected spaces. An important property of a digital n-manifold is that M is a digital n-sphere if and only if for any point v of M, M-v is a digital n-disk. It is proved that a digital (n-1)-sphere S [...] Read more.
Abstract      ReferencesPDF (1033 K)   January 14, 2018     274 Downloads    2390 Views
Open Access
Xiwu Han
Abstract: This paper at first isolates a group of Monty Hall problems, in which all doors are exhaustively chosen, swapped and revealed one by one, then introduces a new variant of briefer tree diagrams for the conditional probability calculation of three-doors and four-doors, and finally gives the recurrence form for n-doors and its [...] Read more.
Abstract      ReferencesPDF (346 K)   January 14, 2018     269 Downloads    2356 Views
Open Access
Abstract: A numerical investigation of an unsteady MHD natural convection flow past an impulsively moving plate with ramped temperature. The dimensionless governing coupled, non- linear boundary layer partial differential equations are solved by a finite element method. The effects of the various dimensionless parameters entering int [...] Read more.
Abstract      ReferencesPDF (973 K)   January 14, 2018     224 Downloads    2440 Views

Volume 2, Issue 3, December 2017

Open Access
Fengxia Zheng
Abstract: In this paper, by introducing the concept of a generalized concave operator and the properties of cone and monotone iterative technique in ordered Banach spaces, some new existence and uniqueness theorems of fixed points for the operator under more extensive conditions are obtained. Finally, as applications, we apply the re [...] Read more.
Abstract      ReferencesPDF (387 K)   November 4, 2017     382 Downloads    2630 Views

Volume 2, Issue 2, April 2017

Open Access
Zdravko Dimitrov Slavov, Christina Slavova Evans
Abstract: In this paper we consider the first general theories of multi-objective mathematical programming. They stem from optimization techniques in economics and are attributed to the economists Francis Edgeworth and Vilfredo Pareto. We will focus our attention on these ideas from a mathematical point of view. [...] Read more.
Abstract      ReferencesPDF (321 K)   April 25, 2017     271 Downloads    2485 Views
Open Access
Shinemin Lin, Domenick Thomas
Abstract: Over the past six years, I have integrated student engagement through inquiry- and project-based learning into college mathematics instructions. I attended many workshops about using computation modeling in the classroom supports student learning and reduces student anxiety. Through dynamic modeling students can connect Ma [...] Read more.
Abstract      ReferencesPDF (579 K)   May 10, 2017     302 Downloads    2570 Views

Volume 2, Issue 1, February 2017

Open Access
Behnam Razzaghmaneshi
Abstract: Let be the JS-imprimitive of that is . This group has order 48 and is generated by the matrices... ... [...] Read more.
Abstract      ReferencesPDF (634 K)   February 27, 2017     358 Downloads    2685 Views

Volume 1, Issue 2, December 2016

Open Access
Lam Weng Hoe, Lam Weng Siew
Abstract: Investors wish to minimize the risk and achieve the target rate of return in their investment. The mean-extended Gini model has been proposed in portfolio optimization to minimize the portfolio risk. The mean is used as the expected return of the investors and extended Gini is used as risk measure. The objective function of [...] Read more.
Abstract      ReferencesPDF (219 K)   December 21, 2016     2411 Downloads    13866 Views
Open Access
Andrii Safonyk
Abstract: In this paper, the mathematical model of biological water treatment by spatial filter was designed. The algorithm of numerical-asymptotic approximation of the solution of the corresponding model problem was developed. It describes a system of nonlinear singularly perturbed differential equations, such as "convection-diffusi [...] Read more.
Abstract      ReferencesPDF (637 K)   December 23, 2016     325 Downloads    2728 Views
Open Access
Rafidah Ali, Ani Shabri
Abstract: The tourism industry is an increasingly important national industry for Malaysia. Government policymakers and business managers pay close attention to the development of the tourism industry. In this study, two machine learning methods, artificial neural network (ANN) and support vector machine (SVM) were utilized to predic [...] Read more.
Abstract      ReferencesPDF (340 K)   January 11, 2017     278 Downloads    2664 Views

Volume 1, Issue 1, October 2016

Open Access
Syed Adil Hussain, Taha Hasan Associate Professor
Abstract: This research considers the Bayesian inference & ranking of the domestic News TV channels using method of paired comparisons. Results for analysis are computed in C language and programs’ coding are executed for seven parametric model’s inference. Furthermore, to ensure the appropriateness of the model, the goodness of fit [...] Read more.
Abstract      ReferencesPDF (420 K)   October 17, 2016     2418 Downloads    22954 Views
Open Access
Omprakash Sikhwal, Yashwant Vyas
Abstract: Various sequences of polynomials by the names of Fibonacci and Lucas polynomials occur in the literature over a century. Generalization of the Fibonacci polynomial has been done using various approaches. One usually found in the literature that the generalization is done by varying the initial conditions. In this paper we s [...] Read more.
Abstract      ReferencesPDF (601 K)   October 17, 2016     2486 Downloads    19153 Views
Open Access
Munmun Nath, Bijan Nath, Santanu Roy
Abstract: In this article, the notion of different types of statistically convergent and statistically null fuzzy real-valued sequences having multiplicity greater than two is introduced. Some algebraic and topological properties such as solid, monotone, symmetric, convergence free, sequence algebra etc. of these spaces are studied. [...] Read more.
Abstract      ReferencesPDF (683 K)   October 17, 2016     2364 Downloads    18974 Views
Open Access
Xiaoyang Zheng, Hong Su, Liqiong Qiu, Jiangping He
Abstract: This presents a refined approach for computing integral and product operators by using the rich properties of Legendre wavelet.The most advantages of this refined calculations are that the operational matrices are lower dimensions, coarse and its elements are the same on each subinterval, respectively. The operational matri [...] Read more.
Abstract      ReferencesPDF (213 K)   October 17, 2016     2428 Downloads    13812 Views
Open Access
Maged G. Bin-Saad, Amani M. Hanballa
Abstract: In this work we will introduce and study a generalized zeta function of the general Hurwitz – Lerch zeta functions. Here, we aim to derive basic properties of generalized zeta function for the general Hurwitz – Lerch zeta functions include some integral representations for several general Hurwitz – Lerch zeta functions a [...] Read more.
Abstract      ReferencesPDF (485 K)   October 19, 2016     2428 Downloads    13882 Views
Open Access
Li Wang, Assistant Professor, Lei Jin, PhD
Abstract: In past many years, biomathematics population models are constructed based on plausible explicit and implicit biological assumptions. In the case that not enough analysis is carried out for a well-motivated and plausible model, the result is no or minimum insights gained. In this study, existence of Hopf bifurcations of a n [...] Read more.
Abstract      ReferencesPDF (242 K)   October 20, 2016     422 Downloads    2799 Views
Open Access
Abstract: Abstract In this paper, the global, non-vacuum solutions with large amplitude to the initial-boundary value problem of the one-dimensional compressible Navier-Stokes-Poisson system with viscosity and heat conductivity coefficients are considered. The proof is based on the analysis on the positive lower and upper bounds on [...] Read more.
Abstract      ReferencesPDF (676 K)   October 20, 2016     390 Downloads    2752 Views
Open Access
Lam Weng Siew, Liew Kah Fai, Lam Weng Hoe
Abstract: Healthcare industry plays an important role in the society and attracts the attention of the public nowadays. Healthcare industry has played a vital role in this world to provide goods and services to enhance quality of life, life expectancy, diagnostic and treatment options as well as the efficiency and cost effectiveness [...] Read more.
Abstract      ReferencesPDF (188 K)   October 20, 2016     2324 Downloads    13959 Views
Open Access
G.P.S. Rathore, Omprakash Sikhwal, Ritu Choudhary
Abstract: Sequences have been fascinating topic for mathematicians for centuries. The Fibonacci and Lucas sequences are examples of second order recursive sequences. Fibonacci sequence is defined by In recent years, few research scholars have been introduced Fibonacci-Like sequences which are similar to Fibonacci sequences in recur [...] Read more.
Abstract      ReferencesPDF (350 K)   October 28, 2016     2373 Downloads    13873 Views
Open Access
LabadzeLevan, SokhadzeGrigol, KvatadzeZurab
Abstract: An estimation procedure for Ornstein–Uhlenbeck process drift and volatility coefficients is given. The procedure is based on the maximum likelihood principle andplug-in-estimator. [...] Read more.
Abstract      ReferencesPDF (335 K)   November 13, 2016     337 Downloads    2751 Views
Open Access
Dariush Akbarian, Hossein Dibachi
Abstract: Free Replication Hull (FRH) is a special case of the CCR DEA problem in which the convexity axiom is excluded from the PPS of the CCR model and the intensity variables are restricted to the whole numbers. In this paper we propose MAJ-FRH, similar to the ranking method in data envelopment analysis proposed by Mehrabian et al [...] Read more.
Abstract      ReferencesPDF (552 K)   November 17, 2016     330 Downloads    2768 Views
Open Access
Dariush Akbarian
Abstract: The out-of-kilter algorithm is one of the basic algorithms that solve the minimum cost flow problem. The aim of this paper is to shows that if the dual of out of kilter formulation has optimal solution then it has integer optimal solution too [...] Read more.
Abstract      ReferencesPDF (371 K)   November 17, 2016     377 Downloads    2548 Views
Open Access
Lena J-T Strömberg
Abstract: Solutions to the Navier-Stokes equations for the Millenium Prize Problem are provided. These consist of a transient Pile-Up flow. A proof is given to show that the flow functions satisfy the Boundary Conditions at infinity. The proof for the spatial derivatives of velocity, u, and force, f, relies on decomposition of an exp [...] Read more.
Abstract      ReferencesPDF (182 K)   November 19, 2016     371 Downloads    2837 Views
Open Access
Shikha Bhatnagar, Omprakash Sikhwal
Abstract: In this paper, we consider additive pulsating Fibonacci sequences. First, we are introduced additive pulsating Fibonacci sequences of first and second kind. Further, explicit formulas in the form of its members are formulated and proved for additive pulsating Fibonacci sequences of first and second kind. [...] Read more.
Abstract      ReferencesPDF (314 K)   November 23, 2016     340 Downloads    2881 Views
Open Access
Shikha Bhatnagar, Omprakash Sikhwal
Abstract: The Fibonacci polynomials and Lucas polynomials are famous for possessing wonderful and amazing properties and identities. In this paper, Generalized Fibonacci polynomials are introduced and study its properties. Further, some recurrence relations state and derive for generalized Fibonacci polynomials. [...] Read more.
Abstract      ReferencesPDF (413 K)   November 23, 2016     417 Downloads    2559 Views
Open Access
Lena J-T Strömberg
Abstract: Rational points on elliptic curves are considered, in the formulation of BSD, and for nonlinear dynamical systems. Method used is the intersection with other curves, for a more general expression of an elliptic curve, known as an extended elliptic curve. It is found that there are elliptic curves with at most 3 rational sol [...] Read more.
Abstract      ReferencesPDF (379 K)   November 29, 2016     348 Downloads    2639 Views
Open Access
Yu. N. Zayko
Abstract: The article discusses some of the mathematical results widely used in practice which contain the Riemann ζ-function, and, at first glance, are in contradiction with common sense. A geometric approach is suggested, based on the concept of the curvature of space, in which is calculated an algorithm that specifies the represe [...] Read more.
Abstract      ReferencesPDF (298 K)   December 14, 2016     379 Downloads    2604 Views