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MATHEMATICS (656 journals)                  1 2 3 4 | Last

Showing 1 - 200 of 538 Journals sorted alphabetically
Abakós     Open Access   (Followers: 3)
Abhandlungen aus dem Mathematischen Seminar der Universitat Hamburg     Hybrid Journal   (Followers: 3)
Academic Voices : A Multidisciplinary Journal     Open Access   (Followers: 2)
Accounting Perspectives     Full-text available via subscription   (Followers: 8)
ACM Transactions on Algorithms (TALG)     Hybrid Journal   (Followers: 16)
ACM Transactions on Computational Logic (TOCL)     Hybrid Journal   (Followers: 4)
ACM Transactions on Mathematical Software (TOMS)     Hybrid Journal   (Followers: 6)
ACS Applied Materials & Interfaces     Full-text available via subscription   (Followers: 21)
Acta Applicandae Mathematicae     Hybrid Journal   (Followers: 1)
Acta Mathematica     Hybrid Journal   (Followers: 11)
Acta Mathematica Hungarica     Hybrid Journal   (Followers: 2)
Acta Mathematica Scientia     Full-text available via subscription   (Followers: 5)
Acta Mathematica Sinica, English Series     Hybrid Journal   (Followers: 5)
Acta Mathematica Vietnamica     Hybrid Journal  
Acta Mathematicae Applicatae Sinica, English Series     Hybrid Journal  
Advanced Science Letters     Full-text available via subscription   (Followers: 7)
Advances in Applied Clifford Algebras     Hybrid Journal   (Followers: 3)
Advances in Calculus of Variations     Hybrid Journal   (Followers: 2)
Advances in Catalysis     Full-text available via subscription   (Followers: 5)
Advances in Complex Systems     Hybrid Journal   (Followers: 7)
Advances in Computational Mathematics     Hybrid Journal   (Followers: 15)
Advances in Decision Sciences     Open Access   (Followers: 5)
Advances in Difference Equations     Open Access   (Followers: 1)
Advances in Fixed Point Theory     Open Access   (Followers: 5)
Advances in Geosciences (ADGEO)     Open Access   (Followers: 10)
Advances in Linear Algebra & Matrix Theory     Open Access   (Followers: 2)
Advances in Materials Sciences     Open Access   (Followers: 16)
Advances in Mathematical Physics     Open Access   (Followers: 5)
Advances in Mathematics     Full-text available via subscription   (Followers: 10)
Advances in Numerical Analysis     Open Access   (Followers: 4)
Advances in Operations Research     Open Access   (Followers: 11)
Advances in Porous Media     Full-text available via subscription   (Followers: 4)
Advances in Pure and Applied Mathematics     Hybrid Journal   (Followers: 6)
Advances in Pure Mathematics     Open Access   (Followers: 4)
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: 5)
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: 7)
AKSIOMA Journal of Mathematics Education     Open Access   (Followers: 1)
Al-Jabar : Jurnal Pendidikan Matematika     Open Access  
Algebra and Logic     Hybrid Journal   (Followers: 4)
Algebra Colloquium     Hybrid Journal   (Followers: 4)
Algebra Universalis     Hybrid Journal   (Followers: 2)
Algorithmic Operations Research     Full-text available via subscription   (Followers: 5)
Algorithms     Open Access   (Followers: 11)
Algorithms Research     Open Access   (Followers: 1)
American Journal of Biostatistics     Open Access   (Followers: 9)
American Journal of Computational and Applied Mathematics     Open Access   (Followers: 4)
American Journal of Mathematical Analysis     Open Access  
American Journal of Mathematics     Full-text available via subscription   (Followers: 7)
American Journal of Operations Research     Open Access   (Followers: 5)
American Mathematical Monthly     Full-text available via subscription   (Followers: 6)
An International Journal of Optimization and Control: Theories & Applications     Open Access   (Followers: 7)
Analele Universitatii Ovidius Constanta - Seria Matematica     Open Access   (Followers: 1)
Analysis     Hybrid Journal   (Followers: 2)
Analysis and Applications     Hybrid Journal   (Followers: 1)
Analysis and Mathematical Physics     Hybrid Journal   (Followers: 3)
Analysis Mathematica     Full-text available via subscription  
Annales Mathematicae Silesianae     Open Access  
Annales mathématiques du Québec     Hybrid Journal   (Followers: 4)
Annales UMCS, 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: 3)
Annals of Data Science     Hybrid Journal   (Followers: 9)
Annals of Discrete Mathematics     Full-text available via subscription   (Followers: 6)
Annals of Mathematics     Full-text available via subscription  
Annals of Mathematics and Artificial Intelligence     Hybrid Journal   (Followers: 6)
Annals of Pure and Applied Logic     Open Access   (Followers: 2)
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  
Annuaire du Collège de France     Open Access   (Followers: 5)
Applicable Algebra in Engineering, Communication and Computing     Hybrid Journal   (Followers: 2)
Applications of Mathematics     Hybrid Journal   (Followers: 1)
Applied Categorical Structures     Hybrid Journal   (Followers: 2)
Applied Computational Intelligence and Soft Computing     Open Access   (Followers: 12)
Applied Mathematics     Open Access   (Followers: 3)
Applied Mathematics     Open Access   (Followers: 4)
Applied Mathematics & Optimization     Hybrid Journal   (Followers: 4)
Applied Mathematics - A Journal of Chinese Universities     Hybrid Journal  
Applied Mathematics Letters     Full-text available via subscription   (Followers: 1)
Applied Mathematics Research eXpress     Hybrid Journal   (Followers: 1)
Applied Network Science     Open Access  
Applied Numerical Mathematics     Hybrid Journal   (Followers: 5)
Applied Spatial Analysis and Policy     Hybrid Journal   (Followers: 4)
Arab Journal of Mathematical Sciences     Open Access   (Followers: 3)
Arabian Journal of Mathematics     Open Access   (Followers: 2)
Archive for Mathematical Logic     Hybrid Journal   (Followers: 1)
Archive of Applied Mechanics     Hybrid Journal   (Followers: 5)
Archive of Numerical Software     Open Access  
Archives of Computational Methods in Engineering     Hybrid Journal   (Followers: 4)
Arkiv för Matematik     Hybrid Journal   (Followers: 1)
Arnold Mathematical Journal     Hybrid Journal   (Followers: 1)
Artificial Satellites : The Journal of Space Research Centre of Polish Academy of Sciences     Open Access   (Followers: 19)
Asia-Pacific Journal of Operational Research     Hybrid Journal   (Followers: 3)
Asian Journal of Algebra     Open Access   (Followers: 1)
Asian Journal of Current Engineering & Maths     Open Access  
Asian-European Journal of Mathematics     Hybrid Journal   (Followers: 2)
Australian Mathematics Teacher, The     Full-text available via subscription   (Followers: 7)
Australian Primary Mathematics Classroom     Full-text available via subscription   (Followers: 2)
Australian Senior Mathematics Journal     Full-text available via subscription   (Followers: 1)
Automatic Documentation and Mathematical Linguistics     Hybrid Journal   (Followers: 5)
Axioms     Open Access  
Baltic International Yearbook of Cognition, Logic and Communication     Open Access  
Basin Research     Hybrid Journal   (Followers: 5)
BIBECHANA     Open Access  
BIT Numerical Mathematics     Hybrid Journal  
BoEM - Boletim online de Educação Matemática     Open Access  
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: 7)
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: 1)
Bulletin of Mathematical Sciences     Open Access   (Followers: 1)
Bulletin of the Brazilian Mathematical Society, New Series     Hybrid Journal  
Bulletin of the London Mathematical Society     Hybrid Journal   (Followers: 3)
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: 18)
Carpathian Mathematical Publications     Open Access   (Followers: 1)
Catalysis in Industry     Hybrid Journal   (Followers: 1)
CEAS Space Journal     Hybrid Journal  
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: 2)
Cogent Mathematics     Open Access   (Followers: 2)
Cognitive Computation     Hybrid Journal   (Followers: 4)
Collectanea Mathematica     Hybrid Journal  
College Mathematics Journal     Full-text available via subscription   (Followers: 3)
COMBINATORICA     Hybrid Journal  
Combustion Theory and Modelling     Hybrid Journal   (Followers: 13)
Commentarii Mathematici Helvetici     Hybrid Journal   (Followers: 1)
Communications in Contemporary Mathematics     Hybrid Journal  
Communications in Mathematical Physics     Hybrid Journal   (Followers: 1)
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  
Complexus     Full-text available via subscription  
Composite Materials Series     Full-text available via subscription   (Followers: 9)
Comptes Rendus Mathematique     Full-text available via subscription   (Followers: 1)
Computational and Applied Mathematics     Hybrid Journal   (Followers: 2)
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: 8)
Computational Mechanics     Hybrid Journal   (Followers: 4)
Computational Methods and Function Theory     Hybrid Journal  
Computational Optimization and Applications     Hybrid Journal   (Followers: 7)
Computers & Mathematics with Applications     Full-text available via subscription   (Followers: 5)
Concrete Operators     Open Access   (Followers: 4)
Confluentes Mathematici     Hybrid Journal  
COSMOS     Hybrid Journal  
Cryptography and Communications     Hybrid Journal   (Followers: 14)
Cuadernos de Investigación y Formación en Educación Matemática     Open Access  
Cubo. A Mathematical Journal     Open Access  
Czechoslovak Mathematical Journal     Hybrid Journal   (Followers: 1)
Demographic Research     Open Access   (Followers: 11)
Demonstratio Mathematica     Open Access  
Dependence Modeling     Open Access  
Design Journal : An International Journal for All Aspects of Design     Hybrid Journal   (Followers: 28)
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: 2)
Discrete Mathematics     Hybrid Journal   (Followers: 8)
Discrete Mathematics & Theoretical Computer Science     Open Access  
Discrete Mathematics, Algorithms and Applications     Hybrid Journal   (Followers: 2)
Discussiones Mathematicae Graph Theory     Open Access   (Followers: 1)
Dnipropetrovsk University Mathematics Bulletin     Open Access  
Doklady Mathematics     Hybrid Journal  
Duke Mathematical Journal     Full-text available via subscription   (Followers: 1)
Edited Series on Advances in Nonlinear Science and Complexity     Full-text available via subscription  
Electronic Journal of Graph Theory and Applications     Open Access   (Followers: 2)
Electronic Notes in Discrete Mathematics     Full-text available via subscription   (Followers: 2)
Elemente der Mathematik     Full-text available via subscription   (Followers: 3)
Energy for Sustainable Development     Hybrid Journal   (Followers: 9)
Enseñanza de las Ciencias : Revista de Investigación y Experiencias Didácticas     Open Access  
Ensino da Matemática em Debate     Open Access  
Entropy     Open Access   (Followers: 5)
ESAIM: Control Optimisation and Calculus of Variations     Full-text available via subscription   (Followers: 1)
European Journal of Combinatorics     Full-text available via subscription   (Followers: 5)
European Journal of Mathematics     Hybrid Journal   (Followers: 1)
European Scientific Journal     Open Access   (Followers: 2)
Experimental Mathematics     Hybrid Journal   (Followers: 4)
Expositiones Mathematicae     Hybrid Journal   (Followers: 2)
Facta Universitatis, Series : Mathematics and Informatics     Open Access  
Fasciculi Mathematici     Open Access  
Finite Fields and Their Applications     Full-text available via subscription   (Followers: 4)
Fixed Point Theory and Applications     Open Access   (Followers: 1)

        1 2 3 4 | Last

Journal Cover Boletín de la Sociedad Matemática Mexicana
  [SJR: 0.11]   [H-I: 11]   [0 followers]  Follow
   Hybrid Journal Hybrid journal (It can contain Open Access articles)
   ISSN (Print) 1405-213X - ISSN (Online) 2296-4495
   Published by Springer-Verlag Homepage  [2353 journals]
  • Topological rigidity of higher graph manifolds
    • Authors: Noé Bárcenas; Daniel Juan-Pineda; Pablo Suárez-Serrato
      Pages: 119 - 127
      Abstract: Abstract In this short note we prove the Borel conjecture for a family of aspherical manifolds that includes higher graph manifolds.
      PubDate: 2017-04-01
      DOI: 10.1007/s40590-016-0099-5
      Issue No: Vol. 23, No. 1 (2017)
  • Semistable fibrations over $$\mathbb {P}^1$$ P 1 with five singular fibers
    • Authors: M. Castañeda-Salazar; A. G. Zamora
      Abstract: Abstract Let X be a non-singular, projective surface and \(f: X\rightarrow \mathbb {P}^1\) a non-isotrivial, semistable fibration defined over \(\mathbb {C}\) . It is known that the number s of singular fibers must be at least 5, provided that the genus of the fibration is greater than or equal to 2 and is at least 6 if the surface is not birationally ruled. In this paper, we deduce necessary conditions for the number s of singular fibers being 5. Concretely, we prove that if \(s=5\) , then the condition \((K_X+F)^2=0\) holds unless S is rational and \(g\le 17\) . The proof is based on a “vertical”version of Miyaoka’s inequality and positivity properties of the relative canonical divisor.
      PubDate: 2017-09-13
      DOI: 10.1007/s40590-017-0185-3
  • An asymptotic behavior of positive solutions for a new class of elliptic
           systems involving of $$\left( p\left( x\right) ,q\left( x\right) \right)
           $$ p x , q x -Laplacian systems
    • Authors: Salah Boulaaras; Rafik Guefaifia; Sarah Kabli
      Abstract: Abstract The propose of this paper is to study of the existence and asymptotic behavior of positive solutions for a new class of elliptic systems involving of \(\left( p\left( x\right) ,q\left( x\right) \right) \) -Laplacian systems using sub-super solutions method, with respect to the symmetry conditions. Our results are natural extensions from the previous recent ones in Edmunds and Rakosnk (Proc R Soc Lond Ser A 437:229–236, 1992).
      PubDate: 2017-09-06
      DOI: 10.1007/s40590-017-0184-4
  • Limit points for left and right spectra of operator matrices
    • Authors: M. Abkari; M. Karmouni; A. Tajmouati
      Abstract: Abstract In this paper, we investigate the limit point set of left and right spectra of upper triangular operator matrices \(M_C=\begin{pmatrix} A &{} C \\ 0 &{} B \\ \end{pmatrix}\) . We prove that \(\mathrm{acc}(\sigma _{*}(M_C))\cup W_{\mathrm{acc}\sigma _*}=\mathrm{acc}(\sigma _{*}(A))\cup \mathrm{acc}(\sigma _{*}(B))\) , where \(W_{\mathrm{acc}\sigma _*}\) is the union of certain holes in \(\mathrm{acc}(\sigma _{*}(M_C))\) , which happen to be subsets of \(\mathrm{acc}(\sigma _{\mathrm{l}}(B))\cap \mathrm{acc}(\sigma _{\mathrm{r}}(A))\) and \( \sigma _{*}()\) can be equal to the left or right spectrum. Furthermore, several sufficient conditions for \(\mathrm{acc}(\sigma _{*}(M_C))=\mathrm{acc}(\sigma _{*}(A))\cup \mathrm{acc}(\sigma _{*}(B))\) that holds for every \(C\in \mathcal {B}(Y,X)\) are given.
      PubDate: 2017-08-31
      DOI: 10.1007/s40590-017-0183-5
  • Blending-type approximation by generalized Lupaş-type operators
    • Authors: Meenu Goyal; Arun Kajla
      Abstract: Abstract In this note, we introduce generalization of Lupaş operators which reproduce constant functions. We study quantitative asymptotic result, some local-direct results and the rate of convergence for the functions having a derivative equivalent with a function of bounded variation for these operators. Furthermore, we illustrate the convergence of the operators with the help of Mathematica software.
      PubDate: 2017-08-17
      DOI: 10.1007/s40590-017-0178-2
  • Triangular matrix representation of differential polynomial rings
    • Authors: Ahmad Moussavi; Kamal Paykan
      Abstract: Abstract Let R be a ring and \(\delta \) is a derivation of R. In this paper, it is proved that, under suitable conditions, the differential polynomial ring \(R[x;\delta ]\) has the same triangulating dimension as R. Furthermore, for a piecewise prime ring, we determine a large class of the differential polynomial ring which have a generalized triangular matrix representation for which the diagonal rings are prime.
      PubDate: 2017-08-02
      DOI: 10.1007/s40590-017-0181-7
  • Real canonical forms for the adjoint action of the Lie groups $${\text
           {Sp}}(V,B)$$ Sp ( V , B ) and $${\text {O}}(V,B)$$ O ( V , B ) on their
           Lie algebras
    • Authors: R. Peniche; M. C. Rodríguez-Vallarte; G. Salgado
      Abstract: Abstract We determine the canonical form of a Hamiltonian matrix \(X\in \mathfrak {sp}(2n,\mathbb {R})\) under symplectic similarity, and the canonical form of a matrix \(Y\in \mathfrak {o}(m)\) in the orthogonal Lie algebra under similarity. This is a well known problem, and it has been solved by means of different techniques. Our contribution is to provide a new solution through elementary linear algebra. As an application, a list of the non-equivalent two- and four-dimensional quadratic Hamiltonians is given.
      PubDate: 2017-07-29
      DOI: 10.1007/s40590-017-0176-4
  • Global behavior of a fourth-order difference equation with quadratic term
    • Authors: R. Abo-Zeid
      Abstract: Abstract In this paper, we determine the forbidden set, introduce an explicit formula for the solutions, and discuss the global behavior of solutions of the difference equation: $$\begin{aligned} x_{n+1}=\frac{ax_{n}x_{n-2}}{-bx_{n}+ cx_{n-3}},\quad n=0,1,\ldots \end{aligned}$$ where a, b, c are positive real numbers and the initial conditions \(x_{-3},x_{-2},x_{-1},x_0\) are real numbers.
      PubDate: 2017-07-27
      DOI: 10.1007/s40590-017-0180-8
  • $$L^{\infty }$$ L ∞ -error estimate of a parabolic quasi-variational
           inequalities systems related to management of energy production problems
           via the subsolution concept
    • Authors: Salah Boulaaras; Mohamed El Amine Bencheikh Le Hocine; Mohamed Haiour
      Abstract: Abstract The main propose of this paper is to provide an error estimate on uniform norm of the parabolic quasi-variational inequalities system related to management of energy production problems, using semi-implicit time scheme with Galerkin spatial methods. Moreover, a new proof of the existence and uniqueness of the solution are given by the introduction of a constructive presented algorithm. Furthermore, an optimally \(L^{\infty }\) -asymptotic behavior in maximum norm is given. The approach is based on the subsolution concept and discrete regularity.
      PubDate: 2017-07-24
      DOI: 10.1007/s40590-017-0177-3
  • Some results on the strongly annihilating-ideal graph of a commutative
    • Authors: R. Nikandish; M. J. Nikmehr; N. Kh. Tohidi
      Abstract: Abstract Let R be a commutative ring with identity and \(\mathbb {A}(R)\) be the set of ideals with non-zero annihilator. The strongly annihilating-ideal graph of R is defined as the graph \(\mathrm {SAG}(R)\) with the vertex set \(\mathbb {A}(R)^*=\mathbb {A}(R){\setminus }\{0\}\) and two distinct vertices I and J are adjacent if and only if \(I\cap \mathrm {Ann}(J)\ne (0)\) and \(J\cap \mathrm {Ann}(I)\ne (0)\) . We show that if R is a reduced ring with finitely many minimal primes, then \(\mathrm {SAG}(R)\) is weakly prefect and an explicit formula for the vertex chromatic number of \(\mathrm {SAG}(R)\) is given. Furthermore, strongly annihilating-ideal graphs with finite clique numbers are studied. Finally, we classify that all rings whose \(\mathrm {SAG}(R)\) are planar.
      PubDate: 2017-07-21
      DOI: 10.1007/s40590-017-0179-1
  • Some remarks on homologically finite subcategories
    • Authors: Sergio Santiago Chan Castro; Alejandro Waldemar Cobá Magaña; Jesús Efrén Pérez Terrazas
      Abstract: Abstract Let \(\Lambda \) be an Artin algebra and \(\mathcal {C}\) a full subcategory of \(\Lambda \) -mod closed under direct summands and closed under extensions. It is known that if \(\mathcal {C}\) is functorially finite, then it has almost split sequences. Here we review an example of a covariantly finite subcategory that has right almost split morphisms except for one isomorphism class, and we compute its almost split sequences.
      PubDate: 2017-07-14
      DOI: 10.1007/s40590-017-0174-6
  • Equilibria of free abstract economies via best proximity point theorems
    • Authors: S. Pirbavafa; S. M. Vaezpour
      Abstract: In this paper, as applications of best proximity point theorems, we obtain new existence theorems of an equilibrium pair in free abstract economies. Also, we state examples which guarantee that the similar results cannot be employed for this type of free abstract economies.
      PubDate: 2017-07-11
      DOI: 10.1007/s40590-017-0175-5
  • Some cubics with finite-dimensional motive
    • Authors: Robert Laterveer
      Abstract: Abstract This small note presents in any dimension a family of cubics that have finite-dimensional motive (in the sense of Kimura). As an illustration, we verify a conjecture of Voevodsky for these cubics and a conjecture of Murre for the Fano variety of lines of these cubics.
      PubDate: 2017-07-07
      DOI: 10.1007/s40590-017-0173-7
  • A general q -inverse series relation
    • Authors: B. I. Dave
      Abstract: Abstract In the present work, we establish a general inverse series relations which unify the polynomials of Askey–Wilson, q-Racah, and q-Konhauser. The q-extensions of Riordan’s inverse series relations [Combinatorial Identities, John Wiley and Sons, Inc. 1968] are obtained by means of the main two theorems. Then we emphasize on the special cases, namely the q-Bessel function together with a q-Neumann expansion, and an inverse pair associated with the partition identities.
      PubDate: 2017-06-27
      DOI: 10.1007/s40590-017-0172-8
  • Models for classifying spaces for $${\mathbb {Z}\rtimes \mathbb {Z}}$$ Z
           ⋊ Z
    • Authors: Daniel Juan-Pineda; Alejandra Trujillo-Negrete
      Abstract: Abstract We construct two models for the classifying space for the family of infinite cyclic subgroups of the fundamental group of the Klein bottle. These examples do not fit in general constructions previously done, for example, for hyperbolic groups.
      PubDate: 2017-06-22
      DOI: 10.1007/s40590-017-0171-9
  • Recent studies on boundary value problems for impulsive fractional
           differential systems involving Caputo fractional derivatives
    • Authors: Yuji Liu; Patricia J. Y. Wong
      Abstract: Abstract We present a new method to convert the boundary value problems for impulsive fractional differential equations involving Caputo fractional derivatives to integral equations. This method is used to solve a classes of boundary value problems for impulsive fractional differential equations. Moreover, some new results on the existence of solutions of anti-periodic boundary value problems for impulsive fractional differential systems are established (see Sect. 3). Our analysis relies on the well known Schauder’s fixed point theorem. Some examples and comments on recent published papers are given to illustrate the differences between our main theorems and known results.
      PubDate: 2017-06-08
      DOI: 10.1007/s40590-017-0170-x
  • A Radó theorem for the porous medium equation
    • Authors: Dmitry Fedchenko; Nikolai Tarkhanov
      Abstract: Abstract We prove that if u is a locally Lipschitz continuous function on an open set \(\mathcal {X} \subset \mathbb {R}^{n+1}\) satisfying the nonlinear heat equation \(\partial _t u = \Delta ( u ^{p-1} u)\) , \(p > 1\) , weakly away from the zero set \(u^{-1} (0)\) in \(\mathcal {X}\) , then u is a weak solution to this equation in all of \(\mathcal {X}\) .
      PubDate: 2017-06-03
      DOI: 10.1007/s40590-017-0169-3
  • A measure theoretic perspective on the space of Feynman diagrams
    • Authors: Ali Shojaei-Fard
      Abstract: Abstract The article applies Connes–Kreimer Hopf algebra of Feynman diagrams and theory of graphons to build an operational calculus machinery on the basis of measure theory for Green’s functions of quantum field theory.
      PubDate: 2017-05-10
      DOI: 10.1007/s40590-017-0166-6
  • The solution of a generalized variant of d’Alembert’s
           functional equation
    • Authors: Iz-iddine EL-Fassi; Abdellatif Chahbi; Samir Kabbaj
      Abstract: Abstract Let \((S,\cdot )\) be a semigroup, \(\mathbb {C}\) be the set of complex numbers, and let \(\sigma ,\tau \in Hom(S,S)\) satisfy \(\tau \circ \tau =\sigma \circ \sigma =id.\) We show that any solution \(f:S \rightarrow \mathbb {C}\) of the functional equation $$\begin{aligned} f(x\sigma (y))+\chi (y)f(\tau (y)x)=2f(x)f(y), \quad x,y \in S, \end{aligned}$$ has the form \(f=(m+\chi \, m\circ \sigma \circ \tau )/2\) , where m is a multiplicative function on S and \(\chi :S\rightarrow (\mathbb {C}\backslash \{0\},\cdot )\) is a character on S (i.e., \(\chi (xy)=\chi (x)\chi (y)\) for all \(x,y\in S\) ) which satisfies \(\chi (x\tau (x))=1\) for all \(x\in S\) .
      PubDate: 2017-05-09
      DOI: 10.1007/s40590-017-0168-4
  • Fractional integral operators involving extended Mittag–Leffler
           function as its Kernel
    • Authors: Gauhar Rahman; Praveen Agarwal; Shahid Mubeen; Muhammad Arshad
      Abstract: Abstract This paper is devoted to the study of fractional calculus with an integral and differential operators containing the following family of extended Mittag–Leffler function: $$\begin{aligned} E_{\alpha ,\beta }^{\gamma ;c}(z; p)=\sum \limits _{n=0}^{\infty }\frac{B_p(\gamma +n, c-\gamma )(c)_{n}}{B(\gamma , c-\gamma )\Gamma (\alpha n+\beta )}\frac{z^n}{n!}, (z,\beta , \gamma \in \mathbb {C}), \end{aligned}$$ in its kernel. Also, we further introduce a certain number of consequences of fractional integral and differential operators containing the said function in their kernels.
      PubDate: 2017-04-25
      DOI: 10.1007/s40590-017-0167-5
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