for Journals by Title or ISSN
for Articles by Keywords
help
  Subjects -> MATHEMATICS (Total: 879 journals)
    - APPLIED MATHEMATICS (71 journals)
    - GEOMETRY AND TOPOLOGY (19 journals)
    - MATHEMATICS (651 journals)
    - MATHEMATICS (GENERAL) (42 journals)
    - NUMERICAL ANALYSIS (19 journals)
    - PROBABILITIES AND MATH STATISTICS (77 journals)

MATHEMATICS (651 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: 2)
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: 4)
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: 1)
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: 5)
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)
Algebra and Logic     Hybrid Journal   (Followers: 3)
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: 2)
Arabian Journal of Mathematics     Open Access   (Followers: 2)
Archive for Mathematical Logic     Hybrid Journal   (Followers: 1)
Archive of Applied Mechanics     Hybrid Journal   (Followers: 4)
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: 21)
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: 2)
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: 29)
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: 7)
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: 4)
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)
Formalized Mathematics     Open Access   (Followers: 2)

        1 2 3 4 | Last

Journal Cover Comptes Rendus Mathematique
  [SJR: 1.154]   [H-I: 46]   [1 followers]  Follow
    
   Full-text available via subscription Subscription journal
   ISSN (Print) 1631-073X
   Published by Elsevier Homepage  [3043 journals]
  • A proof of energy gap for Yang–Mills connections
    • Abstract: Publication date: Available online 2 August 2017
      Source:Comptes Rendus Mathematique
      Author(s): Teng Huang
      In this note, we prove an L n 2 -energy gap result for Yang–Mills connections on a principal G-bundle over a compact manifold without using the Lojasiewicz–Simon gradient inequality ([2] Theorem 1.1).

      PubDate: 2017-08-02T21:39:10Z
       
  • A notion of Denjoy sub-system
    • Abstract: Publication date: Available online 31 July 2017
      Source:Comptes Rendus Mathematique
      Author(s): Marie-Claude Arnaud, Patrice Le Calvez
      We introduce a notion of Denjoy sub-system that generalizes that of the Aubry–Mather set. For such systems, we prove a result similar to Denjoy theorem (non-existence of C 2 Denjoy sub-systems), and study their Lyapunov exponents.

      PubDate: 2017-08-02T21:39:10Z
       
  • Well-posedness of the scalar and the vector advection–reaction
           problems in Banach graph spaces
    • Abstract: Publication date: Available online 31 July 2017
      Source:Comptes Rendus Mathematique
      Author(s): Pierre Cantin
      An extension of the well-posedness analysis of the scalar and the vector advection–reaction problem in Banach graph spaces of power p ∈ ( 1 , ∞ ) is proposed. This analysis is based on the sign of the associated Friedrichs tensor, taking positive, null or reasonably negative values.

      PubDate: 2017-08-02T21:39:10Z
       
  • Fully oscillating sequences and weighted multiple ergodic limit
    • Abstract: Publication date: Available online 31 July 2017
      Source:Comptes Rendus Mathematique
      Author(s): Aihua Fan
      We prove that fully oscillating sequences are orthogonal to multiple ergodic realizations of affine maps of zero entropy on compact Abelian groups. It is more than what Sarnak's conjecture requires for these dynamical systems.

      PubDate: 2017-08-02T21:39:10Z
       
  • A theorem of uniqueness for characteristic functions
    • Abstract: Publication date: Available online 27 July 2017
      Source:Comptes Rendus Mathematique
      Author(s): Saulius Norvidas
      We discuss a uniqueness property of the characteristic function of an absolutely continuous probability measure. Our study is initiated by the question posed by N.G. Ushakov: is it true that, for any interval [ a , b ] ⊂ R , 0 ∉ [ a , b ] , there exists a characteristic function f such that f ≢ e − t 2 / 2 , but f ( t ) = e − t 2 / 2 for all t ∈ [ a , b ] '

      PubDate: 2017-08-02T21:39:10Z
       
  • A variational principle in the parametric geometry of numbers, with
           applications to metric Diophantine approximation
    • Abstract: Publication date: Available online 21 July 2017
      Source:Comptes Rendus Mathematique
      Author(s): Tushar Das, Lior Fishman, David Simmons, Mariusz Urbański
      We establish a new connection between metric Diophantine approximation and the parametric geometry of numbers by proving a variational principle facilitating the computation of the Hausdorff and packing dimensions of many sets of interest in Diophantine approximation. In particular, we show that the Hausdorff and packing dimensions of the set of singular m × n matrices are both equal to m n ( 1 − 1 m + n ) , thus proving a conjecture of Kadyrov, Kleinbock, Lindenstrauss, and Margulis as well as answering a question of Bugeaud, Cheung, and Chevallier. Other applications include computing the dimensions of the sets of points witnessing conjectures of Starkov and Schmidt.

      PubDate: 2017-07-23T21:38:24Z
       
  • The flowbox theorem for divergence-free Lipschitz vector fields
    • Abstract: Publication date: Available online 21 July 2017
      Source:Comptes Rendus Mathematique
      Author(s): Mário Bessa
      In this note, we prove the flowbox theorem for divergence-free Lipschitz vector fields.

      PubDate: 2017-07-23T21:38:24Z
       
  • Sur la méthode de Runge et les points entiers de certaines variétés
           modulaires de Siegel
    • Abstract: Publication date: Available online 21 July 2017
      Source:Comptes Rendus Mathematique
      Author(s): Samuel Le Fourn
      We present results on the integral points of some modular varieties. These results are based on a generalisation of the so-called Runge's method to higher dimensions, which will be explained first. In particular, we obtain an explicit result for the Siegel modular variety A 2 ( 2 ) .

      PubDate: 2017-07-23T21:38:24Z
       
  • Dossier Sommaire
    • Abstract: Publication date: July 2017
      Source:Comptes Rendus Mathematique, Volume 355, Issue 7


      PubDate: 2017-07-23T21:38:24Z
       
  • On a Liouville-type theorem for the Ginzburg–Landau system
    • Abstract: Publication date: Available online 10 July 2017
      Source:Comptes Rendus Mathematique
      Author(s): Christos Sourdis
      We prove that entire, complex valued solutions to the Ginzburg–Landau system with positive real and imaginary parts are constant in any spatial dimension. This property was shown very recently only in the planar case.

      PubDate: 2017-07-11T21:34:49Z
       
  • Propagation des singularités et résonances
    • Abstract: Publication date: Available online 10 July 2017
      Source:Comptes Rendus Mathematique
      Author(s): Jean-François Bony, Setsuro Fujiié, Thierry Ramond, Maher Zerzeri
      In the framework of semiclassical resonances, we make more precise the link between the polynomial estimates of the extension of the resolvent and the propagation of the singularities through the trapped set. This approach makes it possible to eliminate infinity and to concentrate the study near the trapped set. It has allowed us in previous papers to obtain the asymptotic of resonances in various geometric situations.

      PubDate: 2017-07-11T21:34:49Z
       
  • Conformal dimension on boundary of right-angled hyperbolic buildings
    • Abstract: Publication date: Available online 10 July 2017
      Source:Comptes Rendus Mathematique
      Author(s): Antoine Clais
      In this note, we use some combinatorial modulus on the boundary of a right-angled hyperbolic building to control its conformal dimension. The lower bound obtained is optimal in the case of Fuchsian buildings.

      PubDate: 2017-07-11T21:34:49Z
       
  • Remarks on the canonical metrics on the Cartan–Hartogs domains
    • Abstract: Publication date: Available online 4 July 2017
      Source:Comptes Rendus Mathematique
      Author(s): Enchao Bi, Zhenhan Tu
      The Cartan–Hartogs domains are defined as a class of Hartogs-type domains over irreducible bounded symmetric domains. For a Cartan–Hartogs domain Ω B ( μ ) endowed with the natural Kähler metric g ( μ ) , Zedda conjectured that the coefficient a 2 of the Rawnsley's ε-function expansion for the Cartan–Hartogs domain ( Ω B ( μ ) , g ( μ ) ) is constant on Ω B ( μ ) if and only if ( Ω B ( μ ) , g ( μ ) ) is biholomorphically isometric to the complex hyperbolic space. In this paper, following Zedda's argument, we give a geometric proof of the Zedda's conjecture by computing the curvature tensors of the Cartan–Hartogs domain ( Ω B ( μ ) , g ( μ ) ) .

      PubDate: 2017-07-11T21:34:49Z
       
  • On the Lie group structure of automorphism groups
    • Abstract: Publication date: Available online 4 July 2017
      Source:Comptes Rendus Mathematique
      Author(s): Yoshikazu Nagata
      We give a sufficient condition for complex manifolds for automorphism groups to become Lie groups. As an application, we see that the automorphism group of any strictly pseudoconvex domain or finite-type pseudoconvex domain has a Lie group structure.

      PubDate: 2017-07-11T21:34:49Z
       
  • A trace formula for functions of contractions and analytic operator
           Lipschitz functions
    • Abstract: Publication date: Available online 3 July 2017
      Source:Comptes Rendus Mathematique
      Author(s): Mark Malamud, Hagen Neidhardt, Vladimir Peller
      In this note, we study the problem of evaluating the trace of f ( T ) − f ( R ) , where T and R are contractions on a Hilbert space with trace class difference, i.e. T − R ∈ S 1 , and f is a function analytic in the unit disk D . It is well known that if f is an operator Lipschitz function analytic in D , then f ( T ) − f ( R ) ∈ S 1 . The main result of the note says that there exists a function ξ (a spectral shift function) on the unit circle T of class L 1 ( T ) such that the following trace formula holds: trace ( f ( T ) − f ( R ) ) = ∫ T f ′ ( ζ ) ξ ( ζ ) d ζ , whenever T and R are contractions with T − R ∈ S 1 , and f is an operator Lipschitz function analytic in D .

      PubDate: 2017-07-11T21:34:49Z
       
  • Dynamical covering problems on the triadic Cantor set
    • Abstract: Publication date: Available online 28 June 2017
      Source:Comptes Rendus Mathematique
      Author(s): Bao-Wei Wang, Jun Wu, Jian Xu
      In this note, we consider the metric theory of the dynamical covering problems on the triadic Cantor set K . More precisely, let T x = 3 x ( mod 1 ) be the natural map on K , μ the standard Cantor measure and x 0 ∈ K a given point. We consider the size of the set of points in K which can be well approximated by the orbit { T n x 0 } n ≥ 1 of x 0 , namely the set D ( x 0 , φ ) : = { y ∈ K : T n x 0 − y < φ ( n ) for infinitely many n ∈ N } , where φ is a positive function defined on N . It is shown that for μ almost all x 0 ∈ K , the Hausdorff measure of D ( x 0 , φ ) is either zero or full depending upon the convergence or divergence of a certain series. Among the proof, as a byproduct, we obtain an inhomogeneous counterpart of Levesley, Salp and Velani's work on a Mahler's question about the Diophantine approximation on the Cantor set K .

      PubDate: 2017-07-02T21:34:08Z
       
  • A remark on Liao and Rams' result on the distribution of the leading
           partial quotient with growing speed en1/2 in continued fractions
    • Abstract: Publication date: Available online 28 June 2017
      Source:Comptes Rendus Mathematique
      Author(s): Liangang Ma
      For a real x ∈ ( 0 , 1 ) ∖ Q , let x = [ a 1 ( x ) , a 2 ( x ) , ⋯ ] be its continued fraction expansion. Denote by T n ( x ) : = max { a k ( x ) : 1 ≤ k ≤ n } the maximum partial quotient up to n. For any real α ∈ ( 0 , ∞ ) , γ ∈ ( 0 , ∞ ) , let F ( γ , α ) : = { x ∈ ( 0 , 1 ) ∖ Q : lim n → ∞ ⁡ T n ( x ) e n γ = α } . For a set E ⊂ ( 0 , 1 ) ∖ Q , let dim H E be its Hausdorff dimension. Recently, Lingmin Liao and Michal Rams showed that dim H F ( γ , α ) = { 1 i f γ ∈ ( 0 , 1 / 2 ) 1 / 2 i f γ ∈ ( 1 / 2 , ∞ ) for any α ∈ ( 0 , ∞ ) . In this paper, we show that dim H F ( 1 / 2 , α ) = 1 / 2 for any α ∈ ( 0 , ∞ ) following Liao and Rams' method, which supplements their result.

      PubDate: 2017-07-02T21:34:08Z
       
  • A sharp weighted anisotropic Poincaré inequality for convex domains
    • Abstract: Publication date: Available online 27 June 2017
      Source:Comptes Rendus Mathematique
      Author(s): Francesco Della Pietra, Nunzia Gavitone, Gianpaolo Piscitelli
      We prove an optimal lower bound for the best constant in a class of weighted anisotropic Poincaré inequalities.

      PubDate: 2017-07-02T21:34:08Z
       
  • On the existence of correctors for the stochastic homogenization of
           viscous Hamilton–Jacobi equations
    • Abstract: Publication date: Available online 20 June 2017
      Source:Comptes Rendus Mathematique
      Author(s): Pierre Cardaliaguet, Panagiotis E. Souganidis
      We prove, under some assumptions, the existence of correctors for the stochastic homogenization of “viscous” possibly degenerate Hamilton–Jacobi equations in stationary ergodic media. The general claim is that, assuming knowledge of homogenization in probability, correctors exist for all extreme points of the convex hull of the sublevel sets of the effective Hamiltonian. Even when homogenization is not a priori known, the arguments imply the existence of correctors and, hence, homogenization in some new settings. These include positively homogeneous Hamiltonians and, hence, geometric-type equations including motion by mean curvature, in radially symmetric environments and for all directions. Correctors also exist and, hence, homogenization holds for many directions for nonconvex Hamiltonians and general stationary ergodic media.

      PubDate: 2017-06-21T21:33:17Z
       
  • Circumventing the lack of dissipation in certain Oldroyd models
    • Abstract: Publication date: Available online 20 June 2017
      Source:Comptes Rendus Mathematique
      Author(s): Vivette Girault, L. Ridgway Scott
      We modify an argument of Renardy proving existence and regularity for a subset of a class of models of non-Newtonian fluids suggested by Oldroyd, including the upper-convected and lower-convected Maxwellian models. We suggest an effective method for solving these models, which can provide a variational formulation suitable for finite element computation.

      PubDate: 2017-06-21T21:33:17Z
       
  • Global regularity of two-dimensional flocking hydrodynamics
    • Abstract: Publication date: Available online 16 June 2017
      Source:Comptes Rendus Mathematique
      Author(s): Siming He, Eitan Tadmor
      We study the systems of Euler equations that arise from agent-based dynamics driven by velocity alignment. It is known that smooth solutions to such systems must flock, namely the large-time behavior of the velocity field approaches a limiting “flocking” velocity. To address the question of global regularity, we derive sharp critical thresholds in the phase space of initial configuration that characterizes the global regularity and hence the flocking behavior of such two-dimensional systems. Specifically, we prove for that a large class of sub-critical initial conditions such that the initial divergence is “not too negative” and the initial spectral gap is “not too large”, global regularity persists for all time.

      PubDate: 2017-06-16T21:32:55Z
       
  • On the construction of the asymmetric Chudnovsky multiplication algorithm
           in finite fields without derivated evaluation
    • Abstract: Publication date: Available online 16 June 2017
      Source:Comptes Rendus Mathematique
      Author(s): Stéphane Ballet, Nicolas Baudru, Alexis Bonnecaze, Mila Tukumuli
      The Chudnovsky algorithm for the multiplication in extensions of finite fields provides a bilinear complexity uniformly linear with respect to the degree of the extension. Recently, Randriambololona has generalized the method, allowing asymmetry in the interpolation procedure and leading to new upper bounds on the bilinear complexity. In this note, we describe the construction of this asymmetric method without derived evaluation. To do this, we translate this generalization into the language of algebraic function fields and we give a strategy of construction and implementation.

      PubDate: 2017-06-16T21:32:55Z
       
  • Dispersion for the wave and the Schrödinger equations outside strictly
           convex obstacles and counterexamples
    • Abstract: Publication date: Available online 13 June 2017
      Source:Comptes Rendus Mathematique
      Author(s): Oana Ivanovici, Gilles Lebeau
      The purpose of this note is to prove dispersive estimates for the wave and the Schrödinger equations outside strictly convex obstacles in R d . If d = 3 , we show that, for both equations, the linear flow satisfies the (corresponding) dispersive estimates as in R 3 . In higher dimensions d ≥ 4 and if the domain is the exterior of a ball in R d , we show that losses in dispersion do appear and this happens at the Poisson spot.

      PubDate: 2017-06-16T21:32:55Z
       
  • Estimation locale linéaire de la régression non paramétrique
           fonctionnelle par la méthode des k plus proches voisins
    • Abstract: Publication date: Available online 13 June 2017
      Source:Comptes Rendus Mathematique
      Author(s): Mohammed Attouch, Ali Laksaci, Fatima Rafaa
      We consider the problem of the local linear estimation of the regression operator when the regressor is functional. We construct an estimator by the kNN method and we study its asymptotic properties. Precisely, we establish the almost complete consistency of this estimator with rate both pointwise and uniform on the number of neighbor cases.

      PubDate: 2017-06-16T21:32:55Z
       
  • Compatible Hamiltonian operators for the Krichever–Novikov equation
    • Abstract: Publication date: Available online 12 June 2017
      Source:Comptes Rendus Mathematique
      Author(s): Sylvain Carpentier
      It has been proved by Sokolov that Krichever–Novikov equation's hierarchy is hamiltonian for the Hamiltonian operator H 0 = u x ∂ − 1 u x and possesses two weakly non-local recursion operators of degrees 4 and 6, L 4 and L 6 . We show here that H 0 , L 4 H 0 and L 6 H 0 are compatible Hamiltonians operators for which the Krichever–Novikov equation's hierarchy is hamiltonian.

      PubDate: 2017-06-16T21:32:55Z
       
  • Dossier Sommaire
    • Abstract: Publication date: June 2017
      Source:Comptes Rendus Mathematique, Volume 355, Issue 6


      PubDate: 2017-06-16T21:32:55Z
       
  • Trace formula for Witt vector rings
    • Abstract: Publication date: Available online 8 June 2017
      Source:Comptes Rendus Mathematique
      Author(s): Benzaghou Benali, Mokhfi Siham
      We commence by giving a generalisation of Pulita exponential series. We then use these series to establish an analog of the trace formula for Witt vector rings.

      PubDate: 2017-06-11T21:32:32Z
       
  • Vers un théorème de la limite centrale dans l'espace de
           Wasserstein ?
    • Abstract: Publication date: Available online 7 June 2017
      Source:Comptes Rendus Mathematique
      Author(s): Martial Agueh, Guillaume Carlier
      The notion of Wasserstein barycenters is a natural way to interpolate between several probability measures, useful in various applied settings like image processing or machine learning. We conjecture that such barycenters obey a central limit theorem which we prove in some (very) particular cases.

      PubDate: 2017-06-11T21:32:32Z
       
  • Kimura-finiteness of quadric fibrations over smooth curves
    • Abstract: Publication date: Available online 5 June 2017
      Source:Comptes Rendus Mathematique
      Author(s): Gonçalo Tabuada
      Making use of the recent theory of noncommutative mixed motives, we prove that the Voevodsky's mixed motive of a quadric fibration over a smooth curve is Kimura-finite.

      PubDate: 2017-06-06T21:32:11Z
       
  • Relative entropy and Tsallis entropy of two accretive operators
    • Abstract: Publication date: Available online 31 May 2017
      Source:Comptes Rendus Mathematique
      Author(s): Mustapha Raïssouli, Mohammad Sal Moslehian, Shigeru Furuichi
      Let A and B be two accretive operators. We first introduce the weighted geometric mean of A and B together with some related properties. Afterwards, we define the relative entropy as well as the Tsallis entropy of A and B. The present definitions and their related results extend those already introduced in the literature for positive invertible operators.

      PubDate: 2017-06-01T21:31:50Z
       
  • Eigenvalue problems with sign-changing coefficients
    • Abstract: Publication date: Available online 31 May 2017
      Source:Comptes Rendus Mathematique
      Author(s): Camille Carvalho, Lucas Chesnel, Patrick Ciarlet
      We consider a class of eigenvalue problems involving coefficients changing sign on the domain of interest. We describe the main spectral properties of these problems according to the features of the coefficients. Then, under some assumptions on the mesh, we explain how one can use classical finite element methods to approximate the spectrum as well as the eigenfunctions while avoiding spurious modes. We also prove localisation results of the eigenfunctions for certain sets of coefficients.

      PubDate: 2017-06-01T21:31:50Z
       
  • A successive constraint approach to solving parameter-dependent linear
           matrix inequalities
    • Abstract: Publication date: Available online 30 May 2017
      Source:Comptes Rendus Mathematique
      Author(s): Robert O'Connor
      We present a successive constraint approach that makes it possible to cheaply solve large-scale linear matrix inequalities for a large number of parameter values. The efficiency of our method is made possible by an offline/online decomposition of the workload. Expensive computations are performed beforehand, in the offline stage, so that the problem can be solved very cheaply in the online stage. We also extend the method to approximate solutions to semidefinite programming problems.

      PubDate: 2017-06-01T21:31:50Z
       
  • A new method for solving Kolmogorov equations in mathematical finance
    • Abstract: Publication date: Available online 30 May 2017
      Source:Comptes Rendus Mathematique
      Author(s): Philippe G. LeFloch, Jean-Marc Mercier
      For multi-dimensional Fokker–Planck–Kolmogorov equations, we propose a numerical method which is based on a novel localization technique. We present extensive numerical experiments that demonstrate its practical interest for finance applications. In particular, this approach allows us to treat calibration and valuation problems, as well as various risk measure computations.

      PubDate: 2017-06-01T21:31:50Z
       
  • Variational projector augmented-wave method
    • Abstract: Publication date: Available online 26 May 2017
      Source:Comptes Rendus Mathematique
      Author(s): Xavier Blanc, Éric Cancès, Mi-Song Dupuy
      In Kohn–Sham electronic structure computations, wave functions have singularities at nuclear positions. Because of these singularities, plane wave expansions give a poor approximation of the eigenfunctions. The PAW (projector augmented-wave) method circumvents this issue by replacing the original eigenvalue problem by a new one with the same eigenvalues, but smoother eigenvectors. Here a slightly different method, called VPAW (variational PAW), is proposed and analyzed. This new method allows for a better convergence with respect to the number of plane waves. Some numerical results on an idealized case corroborate this efficiency.

      PubDate: 2017-05-27T21:21:01Z
       
  • Observation estimate for kinetic transport equations by diffusion
           approximation
    • Abstract: Publication date: Available online 18 May 2017
      Source:Comptes Rendus Mathematique
      Author(s): Claude Bardos, Kim Dang Phung
      We study the unique continuation property for the neutron transport equation and for a simplified model of the Fokker–Planck equation in a bounded domain with absorbing boundary condition. An observation estimate is derived. It depends on the smallness of the mean free path and the frequency of the velocity average of the initial data. The proof relies on the well-known diffusion approximation under convenience scaling and on the basic properties of this diffusion. Eventually, we propose a direct proof for the observation at one time of parabolic equations. It is based on the analysis of the heat kernel.

      PubDate: 2017-05-22T19:37:49Z
       
  • Dossier Sommaire
    • Abstract: Publication date: May 2017
      Source:Comptes Rendus Mathematique, Volume 355, Issue 5


      PubDate: 2017-05-17T17:35:24Z
       
  • The cyclic homology of crossed-product algebras, II
    • Abstract: Publication date: Available online 10 May 2017
      Source:Comptes Rendus Mathematique
      Author(s): Raphaël Ponge
      In this note, we produce explicit quasi-isomorphisms computing the cyclic homology of crossed-product algebras associated with group actions on manifolds. We obtain explicit relationships with equivariant cohomology. On the way, we extend the results of the first part to the setting of group actions on locally convex algebras.

      PubDate: 2017-05-12T17:34:58Z
       
  • Boundedness of classical solutions for a chemotaxis model with consumption
           of chemoattractant
    • Abstract: Publication date: Available online 9 May 2017
      Source:Comptes Rendus Mathematique
      Author(s): Khadijeh Baghaei, Ali Khelghati
      In this paper, we study the chemotaxis system: { u t = ∇ ⋅ ( ξ ∇ u − χ u ∇ v ) , x ∈ Ω , t > 0 , v t = Δ v − u v , x ∈ Ω , t > 0 , under homogeneous Neumann boundary conditions in a bounded domain Ω ⊂ R n , n ≥ 1 , with smooth boundary. Here, ξ and χ are some positive constants. We prove that the classical solutions to the above system are uniformly in-time-bounded provided that: ‖ v 0 ‖ L ∞ ( Ω ) < { 1 χ ξ 2 ( n + 1 ) [ π + 2 arctan ⁡ ( ( 1 − ξ ) 2 2 ( n + 1 ) ξ ) ] , if 0 < ξ < 1 , π χ 2 ( n + 1 ) , if ξ = 1 , 1 χ ξ 2 ( n + 1 ) [ π − 2 arctan ⁡ ( ( ξ − 1 ) 2 2 ( n + 1 ) ξ ) ] , if ξ > 1 . In the case of ξ = 1 , the recent results show that the classical solutions are global and bounded provided that 0 < ‖ v 0 ‖ L ∞ ( Ω ) ≤ 1 6 ( n
      PubDate: 2017-05-12T17:34:58Z
       
  • Extended Caffarelli–Kohn–Nirenberg inequalities and superweights for
           Lp-weighted Hardy inequalities
    • Abstract: Publication date: Available online 9 May 2017
      Source:Comptes Rendus Mathematique
      Author(s): Michael Ruzhansky, Durvudkhan Suragan, Nurgissa Yessirkegenov
      In this paper, we give an extension of the classical Caffarelli–Kohn–Nirenberg inequalities with respect to the range of parameters. We also establish best constants for large families of parameters. Moreover, we also obtain anisotropic versions of these inequalities which can be conveniently formulated in the language of Folland and Stein's homogeneous groups. We also establish sharp Hardy type inequalities in L p , 1 < p < ∞ , with superweights.

      PubDate: 2017-05-12T17:34:58Z
       
  • The cyclic homology of crossed-product algebras, I
    • Abstract: Publication date: Available online 9 May 2017
      Source:Comptes Rendus Mathematique
      Author(s): Raphaël Ponge
      In this note we produce explicit quasi-isomorphisms computing the cyclic homology of crossed-product algebras.

      PubDate: 2017-05-12T17:34:58Z
       
  • Joint spectrum and large deviation principle for random matrix products
    • Abstract: Publication date: Available online 9 May 2017
      Source:Comptes Rendus Mathematique
      Author(s): Cagri Sert
      The aim of this note is to announce some results about the probabilistic and deterministic asymptotic properties of linear groups. The first one is the analogue, for norms of random matrix products, of the classical theorem of Cramér on large deviation principles (LDP) for sums of iid real random variables. In the second result, we introduce a limit set describing the asymptotic shape of the powers S n = { g 1 . … . g n g i ∈ S } of a subset S of a semisimple linear Lie group G (e.g., SL ( d , R ) ). This limit set has applications, among others, in the study of large deviations.

      PubDate: 2017-05-12T17:34:58Z
       
  • Existence of invariant measures for some damped stochastic dispersive
           equations
    • Abstract: Publication date: Available online 9 May 2017
      Source:Comptes Rendus Mathematique
      Author(s): Ibrahim Ekren, Igor Kukavica, Mohammed Ziane
      We address the long-time behavior of solutions to damped dispersive stochastic partial differential equations, namely the KdV equation and the nonlinear Schrödinger equation on the whole space. We prove that the transition semigroup is Feller and establish the existence of an invariant measure using the asymptotic compactness property of the transition semigroup and the Aldous criterion.

      PubDate: 2017-05-12T17:34:58Z
       
  • Shape optimization of a layer by layer mechanical constraint for additive
           manufacturing
    • Abstract: Publication date: Available online 2 May 2017
      Source:Comptes Rendus Mathematique
      Author(s): Grégoire Allaire, Charles Dapogny, Alexis Faure, Georgios Michailidis
      The purpose of this article is to introduce a new functional of the domain, to be used in shape optimization problems as a means to enforce the constructibility of shapes by additive manufacturing processes. This functional aggregates the self-weights of all the intermediate structures of the shape appearing in the course of its layer-by-layer assembly. Its mathematical analysis is performed and an algorithm is proposed to accelerate the significant computational effort entailed by the implementation of these ideas. Eventually, a numerical validation and a concrete example are discussed.

      PubDate: 2017-05-02T17:16:37Z
       
  • A new generalization of Apostol-type Laguerre–Genocchi polynomials
    • Abstract: Publication date: Available online 26 April 2017
      Source:Comptes Rendus Mathematique
      Author(s): Nabiullah Khan, Talha Usman, Junesang Choi
      Many extensions and variants of the so-called Apostol-type polynomials have recently been investigated. Motivated mainly by those works and their usefulness, we aim to introduce a new class of Apostol-type Laguerre–Genocchi polynomials associated with the modified Milne–Thomson's polynomials introduced by Derre and Simsek and investigate its properties, including, for example, various implicit formulas and symmetric identities in a systematic manner. The new family of polynomials introduced here, being very general, contains, as its special cases, many known polynomials. So the properties and identities presented here reduce to yield those results of the corresponding known polynomials.

      PubDate: 2017-05-02T17:16:37Z
       
 
 
JournalTOCs
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
Email: journaltocs@hw.ac.uk
Tel: +00 44 (0)131 4513762
Fax: +00 44 (0)131 4513327
 
Home (Search)
Subjects A-Z
Publishers A-Z
Customise
APIs
Your IP address: 54.92.142.198
 
About JournalTOCs
API
Help
News (blog, publications)
JournalTOCs on Twitter   JournalTOCs on Facebook

JournalTOCs © 2009-2016