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  Subjects -> MATHEMATICS (Total: 1014 journals)
    - APPLIED MATHEMATICS (82 journals)
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    - MATHEMATICS (751 journals)
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    - PROBABILITIES AND MATH STATISTICS (97 journals)

MATHEMATICS (751 journals)                  1 2 3 4 | Last

Showing 1 - 200 of 538 Journals sorted alphabetically
Abakós     Open Access   (Followers: 4)
Abhandlungen aus dem Mathematischen Seminar der Universitat Hamburg     Hybrid Journal   (Followers: 4)
Academic Voices : A Multidisciplinary Journal     Open Access   (Followers: 2)
Accounting Perspectives     Full-text available via subscription   (Followers: 7)
ACM Transactions on Algorithms (TALG)     Hybrid Journal   (Followers: 15)
ACM Transactions on Computational Logic (TOCL)     Hybrid Journal   (Followers: 3)
ACM Transactions on Mathematical Software (TOMS)     Hybrid Journal   (Followers: 6)
ACS Applied Materials & Interfaces     Hybrid Journal   (Followers: 35)
Acta Applicandae Mathematicae     Hybrid Journal   (Followers: 1)
Acta Mathematica     Hybrid Journal   (Followers: 13)
Acta Mathematica Hungarica     Hybrid Journal   (Followers: 2)
Acta Mathematica Scientia     Full-text available via subscription   (Followers: 6)
Acta Mathematica Sinica, English Series     Hybrid Journal   (Followers: 6)
Acta Mathematica Vietnamica     Hybrid Journal  
Acta Mathematicae Applicatae Sinica, English Series     Hybrid Journal  
Advanced Science Letters     Full-text available via subscription   (Followers: 11)
Advances in Applied Clifford Algebras     Hybrid Journal   (Followers: 4)
Advances in Calculus of Variations     Hybrid Journal   (Followers: 6)
Advances in Catalysis     Full-text available via subscription   (Followers: 5)
Advances in Complex Systems     Hybrid Journal   (Followers: 9)
Advances in Computational Mathematics     Hybrid Journal   (Followers: 19)
Advances in Decision Sciences     Open Access   (Followers: 3)
Advances in Difference Equations     Open Access   (Followers: 3)
Advances in Fixed Point Theory     Open Access   (Followers: 5)
Advances in Geosciences (ADGEO)     Open Access   (Followers: 17)
Advances in Linear Algebra & Matrix Theory     Open Access   (Followers: 6)
Advances in Materials Science     Open Access   (Followers: 15)
Advances in Mathematical Physics     Open Access   (Followers: 5)
Advances in Mathematics     Full-text available via subscription   (Followers: 11)
Advances in Nonlinear Analysis     Open Access  
Advances in Numerical Analysis     Open Access   (Followers: 7)
Advances in Operations Research     Open Access   (Followers: 12)
Advances in Porous Media     Full-text available via subscription   (Followers: 5)
Advances in Pure and Applied Mathematics     Hybrid Journal   (Followers: 7)
Advances in Pure Mathematics     Open Access   (Followers: 7)
Advances in Science and Research (ASR)     Open Access   (Followers: 6)
Aequationes Mathematicae     Hybrid Journal   (Followers: 2)
African Journal of Educational Studies in Mathematics and Sciences     Full-text available via subscription   (Followers: 6)
African Journal of Mathematics and Computer Science Research     Open Access   (Followers: 4)
Afrika Matematika     Hybrid Journal   (Followers: 1)
Air, Soil & Water Research     Open Access   (Followers: 14)
AKSIOMA Journal of Mathematics Education     Open Access   (Followers: 1)
Al-Jabar : Jurnal Pendidikan Matematika     Open Access   (Followers: 1)
Algebra and Logic     Hybrid Journal   (Followers: 6)
Algebra Colloquium     Hybrid Journal   (Followers: 4)
Algebra Universalis     Hybrid Journal   (Followers: 2)
Algorithmic Operations Research     Open Access   (Followers: 5)
Algorithms     Open Access   (Followers: 11)
Algorithms Research     Open Access   (Followers: 1)
American Journal of Computational and Applied Mathematics     Open Access   (Followers: 5)
American Journal of Mathematical Analysis     Open Access  
American Journal of Mathematics     Full-text available via subscription   (Followers: 6)
American Journal of Operations Research     Open Access   (Followers: 5)
An International Journal of Optimization and Control: Theories & Applications     Open Access   (Followers: 11)
Anadol University Journal of Science and Technology B : Theoritical Sciences     Open Access  
Analele Universitatii Ovidius Constanta - Seria Matematica     Open Access   (Followers: 1)
Analysis and Applications     Hybrid Journal   (Followers: 1)
Analysis and Mathematical Physics     Hybrid Journal   (Followers: 5)
Analysis Mathematica     Full-text available via subscription  
Analysis. International mathematical journal of analysis and its applications     Hybrid Journal   (Followers: 2)
Annales Mathematicae Silesianae     Open Access   (Followers: 1)
Annales mathématiques du Québec     Hybrid Journal   (Followers: 4)
Annales Universitatis Mariae Curie-Sklodowska, sectio A – Mathematica     Open Access   (Followers: 1)
Annales Universitatis Paedagogicae Cracoviensis. Studia Mathematica     Open Access  
Annali di Matematica Pura ed Applicata     Hybrid Journal   (Followers: 1)
Annals of Combinatorics     Hybrid Journal   (Followers: 4)
Annals of Data Science     Hybrid Journal   (Followers: 12)
Annals of Discrete Mathematics     Full-text available via subscription   (Followers: 6)
Annals of Mathematics     Full-text available via subscription   (Followers: 1)
Annals of Mathematics and Artificial Intelligence     Hybrid Journal   (Followers: 12)
Annals of Pure and Applied Logic     Open Access   (Followers: 4)
Annals of the Alexandru Ioan Cuza University - Mathematics     Open Access  
Annals of the Institute of Statistical Mathematics     Hybrid Journal   (Followers: 1)
Annals of West University of Timisoara - Mathematics     Open Access  
Annals of West University of Timisoara - Mathematics and Computer Science     Open Access  
Annuaire du Collège de France     Open Access   (Followers: 6)
ANZIAM Journal     Open Access   (Followers: 1)
Applicable Algebra in Engineering, Communication and Computing     Hybrid Journal   (Followers: 2)
Applications of Mathematics     Hybrid Journal   (Followers: 2)
Applied Categorical Structures     Hybrid Journal   (Followers: 4)
Applied Computational Intelligence and Soft Computing     Open Access   (Followers: 14)
Applied Mathematics     Open Access   (Followers: 3)
Applied Mathematics     Open Access   (Followers: 7)
Applied Mathematics & Optimization     Hybrid Journal   (Followers: 8)
Applied Mathematics - A Journal of Chinese Universities     Hybrid Journal  
Applied Mathematics Letters     Full-text available via subscription   (Followers: 2)
Applied Mathematics Research eXpress     Hybrid Journal   (Followers: 1)
Applied Network Science     Open Access   (Followers: 3)
Applied Numerical Mathematics     Hybrid Journal   (Followers: 5)
Applied Spatial Analysis and Policy     Hybrid Journal   (Followers: 7)
Arab Journal of Mathematical Sciences     Open Access   (Followers: 4)
Arabian Journal of Mathematics     Open Access   (Followers: 2)
Archive for Mathematical Logic     Hybrid Journal   (Followers: 3)
Archive of Applied Mechanics     Hybrid Journal   (Followers: 6)
Archive of Numerical Software     Open Access  
Archives of Computational Methods in Engineering     Hybrid Journal   (Followers: 6)
Arkiv för Matematik     Hybrid Journal   (Followers: 2)
Armenian Journal of Mathematics     Open Access  
Arnold Mathematical Journal     Hybrid Journal   (Followers: 1)
Artificial Satellites     Open Access   (Followers: 21)
Asia-Pacific Journal of Operational Research     Hybrid Journal   (Followers: 3)
Asian Journal of Algebra     Open Access   (Followers: 1)
Asian-European Journal of Mathematics     Hybrid Journal   (Followers: 2)
Australian Mathematics Teacher, The     Full-text available via subscription   (Followers: 6)
Australian Primary Mathematics Classroom     Full-text available via subscription   (Followers: 4)
Australian Senior Mathematics Journal     Full-text available via subscription   (Followers: 1)
Automatic Documentation and Mathematical Linguistics     Hybrid Journal   (Followers: 5)
Axioms     Open Access   (Followers: 1)
Baltic International Yearbook of Cognition, Logic and Communication     Open Access   (Followers: 1)
Basin Research     Hybrid Journal   (Followers: 5)
BIBECHANA     Open Access   (Followers: 2)
Biomath     Open Access  
BIT Numerical Mathematics     Hybrid Journal  
Boletim Cearense de Educação e História da Matemática     Open Access  
Boletim de Educação Matemática     Open Access  
Boletín de la Sociedad Matemática Mexicana     Hybrid Journal  
Bollettino dell'Unione Matematica Italiana     Full-text available via subscription   (Followers: 1)
British Journal of Mathematical and Statistical Psychology     Full-text available via subscription   (Followers: 20)
Bruno Pini Mathematical Analysis Seminar     Open Access  
Buletinul Academiei de Stiinte a Republicii Moldova. Matematica     Open Access   (Followers: 13)
Bulletin des Sciences Mathamatiques     Full-text available via subscription   (Followers: 4)
Bulletin of Dnipropetrovsk University. Series : Communications in Mathematical Modeling and Differential Equations Theory     Open Access   (Followers: 3)
Bulletin of Mathematical Sciences     Open Access   (Followers: 1)
Bulletin of Symbolic Logic     Full-text available via subscription   (Followers: 2)
Bulletin of the Australian Mathematical Society     Full-text available via subscription   (Followers: 1)
Bulletin of the Brazilian Mathematical Society, New Series     Hybrid Journal  
Bulletin of the London Mathematical Society     Hybrid Journal   (Followers: 4)
Bulletin of the Malaysian Mathematical Sciences Society     Hybrid Journal  
Calculus of Variations and Partial Differential Equations     Hybrid Journal  
Canadian Journal of Science, Mathematics and Technology Education     Hybrid Journal   (Followers: 19)
Carpathian Mathematical Publications     Open Access   (Followers: 1)
Catalysis in Industry     Hybrid Journal   (Followers: 1)
CEAS Space Journal     Hybrid Journal   (Followers: 2)
CHANCE     Hybrid Journal   (Followers: 5)
Chaos, Solitons & Fractals     Hybrid Journal   (Followers: 3)
ChemSusChem     Hybrid Journal   (Followers: 7)
Chinese Annals of Mathematics, Series B     Hybrid Journal  
Chinese Journal of Catalysis     Full-text available via subscription   (Followers: 2)
Chinese Journal of Mathematics     Open Access  
Clean Air Journal     Full-text available via subscription   (Followers: 1)
Cogent Mathematics     Open Access   (Followers: 2)
Cognitive Computation     Hybrid Journal   (Followers: 3)
Collectanea Mathematica     Hybrid Journal  
COMBINATORICA     Hybrid Journal  
Combinatorics, Probability and Computing     Hybrid Journal   (Followers: 4)
Combustion Theory and Modelling     Hybrid Journal   (Followers: 14)
Commentarii Mathematici Helvetici     Hybrid Journal   (Followers: 1)
Communications in Advanced Mathematical Sciences     Open Access  
Communications in Combinatorics and Optimization     Open Access  
Communications in Contemporary Mathematics     Hybrid Journal  
Communications in Mathematical Physics     Hybrid Journal   (Followers: 2)
Communications On Pure & Applied Mathematics     Hybrid Journal   (Followers: 3)
Complex Analysis and its Synergies     Open Access   (Followers: 2)
Complex Variables and Elliptic Equations: An International Journal     Hybrid Journal  
Composite Materials Series     Full-text available via subscription   (Followers: 8)
Compositio Mathematica     Full-text available via subscription   (Followers: 1)
Comptes Rendus Mathematique     Full-text available via subscription   (Followers: 1)
Computational and Applied Mathematics     Hybrid Journal   (Followers: 3)
Computational and Mathematical Methods in Medicine     Open Access   (Followers: 2)
Computational and Mathematical Organization Theory     Hybrid Journal   (Followers: 2)
Computational Complexity     Hybrid Journal   (Followers: 4)
Computational Mathematics and Modeling     Hybrid Journal   (Followers: 9)
Computational Mechanics     Hybrid Journal   (Followers: 5)
Computational Methods and Function Theory     Hybrid Journal  
Computational Optimization and Applications     Hybrid Journal   (Followers: 8)
Computers & Mathematics with Applications     Full-text available via subscription   (Followers: 9)
Concrete Operators     Open Access   (Followers: 5)
Confluentes Mathematici     Hybrid Journal  
Contributions to Game Theory and Management     Open Access  
COSMOS     Hybrid Journal  
Cryptography and Communications     Hybrid Journal   (Followers: 13)
Cuadernos de Investigación y Formación en Educación Matemática     Open Access  
Cubo. A Mathematical Journal     Open Access  
Current Research in Biostatistics     Open Access   (Followers: 8)
Czechoslovak Mathematical Journal     Hybrid Journal   (Followers: 1)
Demographic Research     Open Access   (Followers: 14)
Demonstratio Mathematica     Open Access  
Dependence Modeling     Open Access  
Design Journal : An International Journal for All Aspects of Design     Hybrid Journal   (Followers: 31)
Developments in Clay Science     Full-text available via subscription   (Followers: 1)
Developments in Mineral Processing     Full-text available via subscription   (Followers: 3)
Dhaka University Journal of Science     Open Access  
Differential Equations and Dynamical Systems     Hybrid Journal   (Followers: 4)
Differentsial'nye Uravneniya     Open Access  
Discrete Mathematics     Hybrid Journal   (Followers: 8)
Discrete Mathematics & Theoretical Computer Science     Open Access  
Discrete Mathematics, Algorithms and Applications     Hybrid Journal   (Followers: 2)
Discussiones Mathematicae - General Algebra and Applications     Open Access  
Discussiones Mathematicae Graph Theory     Open Access   (Followers: 1)
Diskretnaya Matematika     Full-text available via subscription  
Dnipropetrovsk University Mathematics Bulletin     Open Access  
Doklady Akademii Nauk     Open Access  
Doklady Mathematics     Hybrid Journal  
Duke Mathematical Journal     Full-text available via subscription   (Followers: 1)
Eco Matemático     Open Access  
Econometrics     Open Access   (Followers: 2)
Edited Series on Advances in Nonlinear Science and Complexity     Full-text available via subscription  
Educação Matemática Debate     Open Access  
EduMatSains     Open Access  
Electronic Journal of Combinatorics     Open Access  

        1 2 3 4 | Last

Similar Journals
Journal Cover
Arab Journal of Mathematical Sciences
Number of Followers: 4  

  This is an Open Access Journal Open Access journal
ISSN (Print) 1319-5166
Published by Elsevier Homepage  [3160 journals]
  • Remarks on the critical nonlinear high-order heat equation

    • Abstract: Publication date: Available online 15 March 2019Source: Arab Journal of Mathematical SciencesAuthor(s): Tarek Saanouni The initial value problem for a semi-linear high-order heat equation is investigated. In the focusing case, global well-posedness and exponential decay are obtained. In the focusing sign, global and non global existence of solutions are discussed via the potential well method.
       
  • On abstract Hilfer fractional integrodifferential equations with boundary
           conditions

    • Abstract: Publication date: Available online 14 March 2019Source: Arab Journal of Mathematical SciencesAuthor(s): Sabri T.M. Thabet, Bashir Ahmad, Ravi P. Agarwal In this paper, we study a Cauchy-type problem for Hilfer fractional integrodifferential equations with boundary conditions. The existence of solutions for the given problem is proved by applying measure of noncompactness technique in an abstract weighted space. Moreover, we use generalized Gronwall inequality with singularity to establish continuous dependence and uniqueness of ϵ-approximate solutions.
       
  • S -strong+ a c c r &rft.title=Arab+Journal+of+Mathematical+Sciences&rft.issn=1319-5166&rft.date=&rft.volume=">Some results on modules satisfying S -strong a c c r ∗

    • Abstract: Publication date: Available online 5 March 2019Source: Arab Journal of Mathematical SciencesAuthor(s): S. Visweswaran, Premkumar T. Lalchandani The rings considered in this article are commutative with identity. Modules are assumed to be unitary. Let R be a ring and let S be a multiplicatively closed subset of R. We say that a module M over R satisfiesS- strongaccr∗ if for every submodule N of M and for every sequence of elements of R, the ascending sequence of submodules (N:Mr1)⊆(N:Mr1r2)⊆(N:Mr1r2r3)⊆⋯ is S-stationary. That is, there exist k∈N and s∈S such that s(N:Mr1⋯rn)⊆(N:Mr1⋯rk) for all n≥k. We say that a ring R satisfies S- strong accr∗ if R regarded as a module over R satisfies S-strong
       
  • Toeplitz and slant Toeplitz operators on the polydisk

    • Abstract: Publication date: Available online 25 February 2019Source: Arab Journal of Mathematical SciencesAuthor(s): Munmun Hazarika, Sougata Marik For n≥1, let Dn be the polydisk in ℂn, and let Tn be the n-torus. L2(Tn) denotes the space of Lebesgue square integrable functions on Tn. In this paper we define slant Toeplitz operators on L2(Tn). Besides giving a necessary and sufficient condition for an operator on L2(Tn) to be slant Toeplitz, we also establish several properties of slant Toeplitz operators.
       
  • The implicit midpoint rule for nonexpansive mappings in 2-uniformly convex
           hyperbolic spaces

    • Abstract: Publication date: Available online 22 February 2019Source: Arab Journal of Mathematical SciencesAuthor(s): H. Fukhar-ud-din, A.R. Khan The purpose of this paper is to introduce the implicit midpoint rule (IMR) of nonexpansive mappings in 2- uniformly convex hyperbolic spaces and study its convergence. Strong and △-convergence theorems based on this algorithm are proved in this new setting. The results obtained hold concurrently in uniformly convex Banach spaces, CAT0 spaces and Hilbert spaces as special cases.
       
  • Bifurcation analysis of a nonlinear diffusion model: Effect of evaluation
           period for the diffusion of a technology

    • Abstract: Publication date: Available online 19 February 2019Source: Arab Journal of Mathematical SciencesAuthor(s): Rakesh Kumar, Anuj Kumar Sharma, Kulbhushan Agnihotri A nonlinear modified form of Bass model involving the interactions of non-adopter and adopter populations has been proposed to describe the process of diffusion of a new technology in the presence of evaluation period (time delay). The basic aim is to model the diffusion of those technologies which require higher investments, and which require government subsidies for promotions in the various markets. We use government incentives and the costs in the form of external factors, as well as the internal word of mouth that considerably influence the non-adopters decisions. A qualitative analysis has been performed to determine the stability of the various equilibria. The Hopf bifurcation occurs near the positive equilibrium when the time delay passes some critical values. By applying the normal form theory and the center manifold reduction for functional differential equations, explicit formulae presenting stability properties of bifurcating periodic solutions have been computed. Moreover, the intra-specific competition has played an important role in establishing the maturity stage in the innovation diffusion model. Numerical analysis has been carried out to justify the correctness of our analytical findings.
       
  • ρ -quasi-contractive+mappings+in+modular+function+spaces&rft.title=Arab+Journal+of+Mathematical+Sciences&rft.issn=1319-5166&rft.date=&rft.volume=">Approximation of fixed point of multivalued ρ -quasi-contractive mappings
           in modular function spaces

    • Abstract: Publication date: Available online 8 February 2019Source: Arab Journal of Mathematical SciencesAuthor(s): Godwin Amechi Okeke, Safeer Hussain Khan The purpose of this paper is to extend the recent results of Okeke et al. (2018) to the class of multivalued ρ-quasi-contractive mappings in modular function spaces. We approximate fixed points of this class of nonlinear multivalued mappings in modular function spaces. Moreover, we extend the concepts of T-stability, almost T-stability and summably almost T-stability to modular function spaces and give some results.
       
  • Unbalanced multi-drawing urn with random addition matrix

    • Abstract: Publication date: Available online 11 January 2019Source: Arab Journal of Mathematical SciencesAuthor(s): Aguech Rafik, Selmi Olfa In this paper, we consider a two color multi-drawing urn model. At each discrete time step, we draw uniformly at random a sample of m balls (m≥1) and note their color, they will be returned to the urn together with a random number of balls depending on the sample’s composition. The replacement rule is a 2 × 2 matrix depending on bounded discrete positive random variables. Using a stochastic approximation algorithm and martingales methods, we investigate the asymptotic behavior of the urn after many draws.
       
  • m - ( r ; h 1 , h 2 ) -preinvex+mappings+via+generalized+Mittag-Leffler+function&rft.title=Arab+Journal+of+Mathematical+Sciences&rft.issn=1319-5166&rft.date=&rft.volume=">Some new fractional integral inequalities for generalized relative
           semi- m - ( r ; h 1 , h 2 ) -preinvex mappings via
           generalized Mittag-Leffler function

    • Abstract: Publication date: Available online 2 January 2019Source: Arab Journal of Mathematical SciencesAuthor(s): Artion Kashuri, Rozana Liko The authors discover a new identity concerning differentiable mappings defined on m-invex set via fractional integrals. By using the obtained identity as an auxiliary result, some fractional integral inequalities for generalized relative semi- m-(r;h1,h2)-preinvex mappings by involving generalized Mittag-Leffler function are presented. It is pointed out that some new special cases can be deduced from main results of the paper. Also these inequalities have some connections with known integral inequalities. At the end, some applications to special means for different positive real numbers are provided as well.
       
  • Hochschild cohomology of Sullivan algebras and mapping spaces

    • Abstract: Publication date: January 2019Source: Arab Journal of Mathematical Sciences, Volume 25, Issue 1Author(s): J.-B. Gatsinzi Let f:X→Y be a map between simply connected spaces having the homotopy of finite type CW-complexes, where H∗(Y,Q) is finite dimensional and ϕ:(∧V,d)→(B,d) a Sullivan model of f. We consider (B,d) as a module over ∧V via the mapping ϕ. Let map(X,Y;f) denote the component of f in the space of mappings from X to Y. In this paper we show that there is a canonical injection π∗(Ωmap(X,Y;f))⊗Q→HH∗(∧V;B).
       
  • New characterizations of completely monotone functions and Bernstein
           functions, a converse to Hausdorff’s moment characterization theorem

    • Abstract: Publication date: January 2019Source: Arab Journal of Mathematical Sciences, Volume 25, Issue 1Author(s): Rafik Aguech, Wissem Jedidi We give several new characterizations of completely monotone functions and Bernstein functions via two approaches: the first one is driven algebraically via elementary preserving mappings and the second one is developed in terms of the behavior of their restriction on N0. We give a complete answer to the following question: Can we affirm that a function f is completely monotone (resp. a Bernstein function) if we know that the sequence f(k)k is completely monotone (resp. alternating)' This approach constitutes a kind of converse to Hausdorff’s moment characterization theorem in the context of completely monotone sequences.
       
  • Oscillation criterion for first-order linear differential equations with
           several delay arguments

    • Abstract: Publication date: January 2019Source: Arab Journal of Mathematical Sciences, Volume 25, Issue 1Author(s): Hongwu Wu, Julio G. Dix By using iterated estimates involving all delay arguments, we establish an oscillation criterion for first-order linear differential equations with several delay arguments. This criterion is focused on the interaction among the delay arguments, instead of converting the original equation into a single delay equation and using existing results. Several examples illustrate the results obtained.
       
  • Iterative approximation of fixed points of contraction mappings in complex
           valued Banach spaces

    • Abstract: Publication date: January 2019Source: Arab Journal of Mathematical Sciences, Volume 25, Issue 1Author(s): Godwin Amechi Okeke We approximate the fixed points of contraction mappings using the Picard–Krasnoselskii hybrid iterative process, which is known to converge faster than all of Picard, Mann and Ishikawa iterations in complex valued Banach spaces. Moreover, we prove analytically and with a numerical example that the Picard–Mann hybrid iteration and the Picard–Krasnoselskii hybrid iteration have the same rate of convergence. Furthermore, we apply our results in finding solutions of delay differential equations in complex valued Banach spaces.
       
  • Parallelizing pairings on Hessian elliptic curves

    • Abstract: Publication date: January 2019Source: Arab Journal of Mathematical Sciences, Volume 25, Issue 1Author(s): Emmanuel Fouotsa This paper considers the computation of the Ate pairing on the Hessian model of elliptic curves. Due to the many important properties making the model attractive in cryptography, we compute for the first time the Ate pairing on this model and show how both the Tate and the Ate pairings can be parallelized on this curve. We wrote codes in the Sage software to ensure the correctness of formulas in this work.
       
  • q -integral+equations+in+fractional+ q -calculus+approach&rft.title=Arab+Journal+of+Mathematical+Sciences&rft.issn=1319-5166&rft.date=&rft.volume=">The solution of certain triple q -integral equations in fractional
           q -calculus approach

    • Abstract: Publication date: January 2019Source: Arab Journal of Mathematical Sciences, Volume 25, Issue 1Author(s): M.A. AL-Towailb In this paper, we consider a certain system of triple q-integral equations, where the kernel is the third Jackson q-Bessel functions. We give two solutions by using the fractional q-calculus approach. We study also the system with general kernel. A q-analogue of the result by Cooke and by Williams of 1963 is included.
       
  • ( 5 ) -hypomorphy+of+digraphs+up+to+complementation&rft.title=Arab+Journal+of+Mathematical+Sciences&rft.issn=1319-5166&rft.date=&rft.volume=">The ( ≤ 5 ) -hypomorphy of digraphs up to complementation

    • Abstract: Publication date: January 2019Source: Arab Journal of Mathematical Sciences, Volume 25, Issue 1Author(s): Aymen Ben Amira, Bechir Chaari, Jamel Dammak, Hamza Si Kaddour Two digraphs G=(V,E) and G′=(V,E′) are isomorphic up to complementation if G′ is isomorphic to G or to the complement G¯≔(V,{(x,y)∈V2:x≠y,(x,y)∉E}) of G. The Boolean sum G+̇G′ is the symmetric digraph U=(V,E(U)) defined by {x,y}∈E(U) if and only if (x,y)∈E and (x,y)∉E′, or (x,y)∉E and (x,y)∈E′. Let k be a nonnegative integer. The digraphs G and G′ are (≤k)-hypomorphic up to complementation if for every t-element subset X of V, with t≤k, the induced subdigraphs G↾X and G↾X...
       
  • Existence results for systems of first-order nabla dynamic inclusions on
           time scales

    • Abstract: Publication date: January 2019Source: Arab Journal of Mathematical Sciences, Volume 25, Issue 1Author(s): Bouharket Bendouma, Ahmed Hammoudi In this article, we study the existence of solutions to systems of first-order ∇-dynamic inclusions on time scales with terminal or periodic boundary conditions. We employ the method of solution-tube and Kakutani fixed point theorem.
       
  • Estimation of different entropies via Abel–Gontscharoff Green functions
           and Fink’s identity using Jensen type functionals

    • Abstract: Publication date: Available online 31 December 2018Source: Arab Journal of Mathematical SciencesAuthor(s): Khuram Ali Khan, Tasadduq Niaz, Đilda Pečarić, Josip Pečarić In this work, we estimated the different entropies like Shannon entropy, Rényi divergences, Csiszár divergence by using Jensen’s type functionals. The Zipf’s–Mandelbrot law and hybrid Zipf’s–Mandelbrot law are used to estimate the Shannon entropy. The Abel–Gontscharoff Green functions and Fink’s Identity are used to construct new inequalities and generalized them for m-convex function.
       
  • On stochastic solutions of nonlocal random functional integral equations

    • Abstract: Publication date: Available online 4 December 2018Source: Arab Journal of Mathematical SciencesAuthor(s): M.M. Elborai, M.I. Youssef In this paper, we use Schauder’s fixed point to establish the existence of at least one solution for a functional nonlocal stochastic differential equation under sufficient conditions in the space of all square integrable stochastic processes with a finite second moment. We state and prove the conditions which guarantee the uniqueness of the solution. We solve a nonlinear example analytically and obtain the initial condition which makes the solution passes through a random position with a given normal distribution at a specified time. Also, the Milstein scheme to this example is studied.
       
  • Existence of mild solutions for fractional non-instantaneous impulsive
           integro-differential equations with nonlocal conditions

    • Abstract: Publication date: Available online 27 November 2018Source: Arab Journal of Mathematical SciencesAuthor(s): Arshi Meraj, Dwijendra N. Pandey This paper is concerned with the existence of mild solutions for a class of fractional semilinear integro-differential equations having non-instantaneous impulses. The result is obtained by using noncompact semigroup theory and fixed point theorem. The obtained result is illustrated by an example at the end.
       
  • An extension of the reflexive property of rings

    • Abstract: Publication date: Available online 22 November 2018Source: Arab Journal of Mathematical SciencesAuthor(s): Arnab Bhattacharjee Mason introduced the notion of reflexive property of rings as a generalization of reduced rings. For a ring endomorphism α, Krempa studied α-rigid rings as an extension of reduced rings. In this note, we introduce the notion of α-quasi reflexive rings as a generalization of α-rigid rings and a natural extension of the reflexive property to ring endomorphisms. We investigate various properties of these rings and also study ring theoretic extensions such as polynomial rings, trivial extensions, right (left) quotient rings, Dorroh extensions etc. over these rings.
       
  • Fitted finite difference method for third order singularly perturbed
           convection diffusion equations with integral boundary condition

    • Abstract: Publication date: Available online 12 November 2018Source: Arab Journal of Mathematical SciencesAuthor(s): Velusamy Raja, Ayyadurai Tamilselvan A class of third order singularly perturbed convection diffusion type equations with integral boundary condition is considered. A numerical method based on a finite difference scheme on a Shishkin mesh is presented. The method suggested is of almost first order convergent. An error estimate is derived in the discrete norm. Numerical examples are presented, which validate the theoretical estimates.
       
  • Some results on vanishing moments of wavelet packets, convolution and
           cross-correlation of wavelets

    • Abstract: Publication date: Available online 23 July 2018Source: Arab Journal of Mathematical SciencesAuthor(s): A.M. Jarrah, Nikhil Khanna A formula for calculating moments for wavelet packets is derived and a sufficient condition for moments of wavelet packets to be vanishing is obtained. Also, the convolution and cross-correlation theorems for Hilbert transform of wavelets are proved. Finally, using MRA of L2(R), some results on the vanishing moments of the scaling functions, wavelets and their convolution in two dimension are given.
       
  • Best proximity pair and fixed point results for noncyclic mappings in
           modular spaces

    • Abstract: Publication date: July 2018Source: Arab Journal of Mathematical Sciences, Volume 24, Issue 2Author(s): Karim Chaira, Samih Lazaiz In this paper, we formulate best proximity pair theorems for noncyclic relatively ρ-nonexpansive mappings in modular spaces in the setting of proximal ρ-admissible sets. As a companion result, we establish a best proximity pair theorem for pointwise noncyclic contractions in modular spaces. To that end, we provide some examples throughout the paper to illustrate the validity of the obtained results.
       
  • Skew-signings of positive weighted digraphs

    • Abstract: Publication date: July 2018Source: Arab Journal of Mathematical Sciences, Volume 24, Issue 2Author(s): Kawtar Attas, Abderrahim Boussaïri, Mohamed Zaidi An arc-weighted digraph is a pair (D,ω) where D is a digraph and ω is an arc-weight function that assigns to each arc uv of D a nonzero real number ω(uv). Given an arc-weighted digraph (D,ω) with vertices v1,…,vn, the weighted adjacency matrix of (D,ω) is defined as the n×n matrix A(D,ω)=[aij] where aij=ω(vivj) if vivj is an arc of D, and 0otherwise. Let (D,ω) be a positive arc-weighted digraph and assume that D is loopless and symmetric. A skew-signing of (D,ω) is an arc-weight function ω′ such that ω′(uv)=±ω(uv) and ω′(uv)ω′(vu)
       
  • Existence of solutions for quasilinear random impulsive neutral
           differential evolution equation

    • Abstract: Publication date: July 2018Source: Arab Journal of Mathematical Sciences, Volume 24, Issue 2Author(s): B. Radhakrishnan, M. Tamilarasi This paper deals with the existence of solutions for quasilinear random impulsive neutral functional differential evolution equation in Banach spaces and the results are derived by using the analytic semigroup theory, fractional powers of operators and the Schauder fixed point approach. An application is provided to illustrate the theory.
       
  • On some higher order boundary value problems at resonance with integral
           boundary conditions

    • Abstract: Publication date: July 2018Source: Arab Journal of Mathematical Sciences, Volume 24, Issue 2Author(s): Samuel Azubuike Iyase, Olawale Joshua Adeleke This paper investigates the existence of solutions for higher-order multipoint boundary value problems at resonance. We obtain existence results by using coincidence degree arguments.
       
  • On the structure of conservation laws of (3+1)-dimensional wave equation

    • Abstract: Publication date: July 2018Source: Arab Journal of Mathematical Sciences, Volume 24, Issue 2Author(s): S. Reza Hejazi, Elham Lashkarian In this paper, a (3+1)-dimensional wave equation is studied from the point of view of Lie’s theory in partial differential equations including conservation laws. The symmetry operators are determined to find the reduced form of the considered equation. The non-local conservation theorems and multipliers approach are performed on the (3+1)-dimensional wave equation. We obtain conservation laws by using five methods, such as direct method, Noether’s method, extended Noether’s method, Ibragimov’s method; and finally we can derive infinitely many conservation laws from a known conservation law viewed as the last method. We also derive some exact solutions using some conservation laws Anco and Bluman (2002).
       
  • Some results and examples of the biharmonic maps with potential

    • Abstract: Publication date: July 2018Source: Arab Journal of Mathematical Sciences, Volume 24, Issue 2Author(s): Abdelkader Zagane, Seddik Ouakkas In this paper, we will study the class of biharmonic maps with potential, in the particular case represented by conformal maps between equidimensional manifolds. Some examples are constructed in particular cases (Euclidean space and sphere).
       
  • k )+spaces&rft.title=Arab+Journal+of+Mathematical+Sciences&rft.issn=1319-5166&rft.date=&rft.volume=">Approximating fixed points of nearly asymptotically nonexpansive mappings
           in CAT( k ) spaces

    • Abstract: Publication date: July 2018Source: Arab Journal of Mathematical Sciences, Volume 24, Issue 2Author(s): Anupam Sharma In this paper we approximate common fixed points of nearly asymptotically nonexpansive mappings under modified SP-iteration process in the setting of CAT(k) spaces and establish strong and Δ-convergence theorems. Our results generalize and improve the corresponding known results of the existing literature.
       
 
 
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