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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: 10)
Algorithms Research     Open Access   (Followers: 1)
American Journal of Biostatistics     Open Access   (Followers: 9)
American Journal of Computational and Applied Mathematics     Open Access   (Followers: 3)
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: 8)
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: 4)
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)
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)
Foundations and Trends® in Econometrics     Full-text available via subscription   (Followers: 4)

        1 2 3 4 | Last

Journal Cover Bollettino dell'Unione Matematica Italiana
  [SJR: 0.375]   [H-I: 19]   [1 followers]  Follow
   Full-text available via subscription Subscription journal
   ISSN (Print) 1972-6724 - ISSN (Online) 2198-2759
   Published by Springer-Verlag Homepage  [2355 journals]
  • Orthogonal polynomials with respect to a class of Fisher-Hartwig symbols
           and inverse of Toeplitz matrices
    • Authors: Philippe Rambour
      Pages: 159 - 178
      Abstract: Using previous results we propose an asymptotic expression of the coefficients of the orthogonal polynomials on the unit circle with respect to a weight of type \(f_{\alpha _{1},\ldots ,\alpha _{M},\, \theta _{1},\ldots ,\theta _{M}}\) defined by \({ \theta \mapsto \prod \nolimits _{1\le j \le M} \vert 1 - e^{i(\theta -\theta _{j})}\vert ^{2\alpha _{j}} c}\) with \(\theta _{j}\in ]-\pi ,\pi ]\) , \(\theta _{i}\ne \theta _{j}\) , and \(-\frac{1}{2} < \alpha _{j}<\frac{1}{2}\) and c a sufficiently smooth regular function. As a corollary we give an asymptotic expansion of the entries of \(T_{N}^{-1}\big ( f_{\alpha _{1},\ldots ,\alpha _{M},\theta _{1},\ldots ,\theta _{M},\, \theta _{1},\ldots ,\theta _{M}}\big )\) for \(\max ( \alpha _{1},\ldots ,\alpha _{M})\in ]0, \frac{1}{2}[\) .
      PubDate: 2017-06-01
      DOI: 10.1007/s40574-016-0071-3
      Issue No: Vol. 10, No. 2 (2017)
  • Unique fixed points of p-cyclic kannan type probabilistic contractions
    • Authors: Binayak S. Choudhury; Samir Kumar Bhandari; Parbati Saha
      Pages: 179 - 189
      Abstract: Cyclic contractions have received attention especially due to their uses in problems of global optimizations. In this paper we consider p-cyclic maps in 2-Menger spaces which are cyclic mappings between p-number of subsets of the space. We establish a fixed point result for these maps under the assumption of an inequality which is Kannan type and involves two control functions. Our results extends a previous results and is illustrated with an example.
      PubDate: 2017-06-01
      DOI: 10.1007/s40574-016-0073-1
      Issue No: Vol. 10, No. 2 (2017)
  • Functions near some $$(\alpha _1,\alpha _2)$$ ( α 1 , α 2 ) -double
           Jordan derivations in p -Banach algebras
    • Authors: Ismail Nikoufar
      Pages: 191 - 198
      Abstract: In this paper, under certain conditions we find a double Jordan derivation near a certain function in a p-Banach algebra. Indeed, we prove the generalized Hyers–Ulam–Rassias stability and Isac-Rassias stability of double Jordan derivations in p-Banach algebras.
      PubDate: 2017-06-01
      DOI: 10.1007/s40574-016-0074-0
      Issue No: Vol. 10, No. 2 (2017)
  • Spectral homogenization for a Robin–Neumann problem
    • Authors: Andrea Cancedda
      Pages: 199 - 222
      Abstract: We consider a Neumann–Robin spectral problem in a perforated domain \(\Omega _{\varepsilon }\) . By homogenization techniques we find the suitable homogenized problem and we discuss the asymptotics of eigenpairs, as the size of the perforation tends to zero. Our results involve an approach based on Višík lemma and the Mosco convergence of eigenspaces. We prove that eigenpairs of our problem converge to eigenpairs of the homogenized problem with rate \(\sqrt{\varepsilon }\) .
      PubDate: 2017-06-01
      DOI: 10.1007/s40574-016-0075-z
      Issue No: Vol. 10, No. 2 (2017)
  • On $$\xi $$ ξ -torsion modules
    • Authors: Himashree Kalita; Azizul Hoque; Helen K. Saikia
      Pages: 223 - 228
      Abstract: In this paper we introduce the concept of \(\xi \) -torsion module, \(\xi \) -torsion-free module and \(\xi \) -torsionable module. We investigate many properties of these modules. We characterize \(\xi \) -torsion modules and \(\xi \) -torsion-free modules using short exact sequences and module homomorphisms.
      PubDate: 2017-06-01
      DOI: 10.1007/s40574-016-0076-y
      Issue No: Vol. 10, No. 2 (2017)
  • An entire function sharing a polynomial with its derivatives
    • Authors: Indrajit Lahiri; Imrul Kaish
      Pages: 229 - 240
      Abstract: We consider in the paper the situation when an entire function shares a polynomial with its derivatives. Our results improve a result of Zhong.
      PubDate: 2017-06-01
      DOI: 10.1007/s40574-016-0077-x
      Issue No: Vol. 10, No. 2 (2017)
  • On traces spaces connected with a class of intermediate weighted spaces
    • Authors: Michel Artola
      Pages: 241 - 269
      Abstract: Methods developed by Lions and Peetre (Pub Math de l’IHES 19:5–68, 1964) are used to extend results derived in Artola (Bolletino UMI (9) V:125–158, 2012) for traces of weighted spaces. The weights are required to belong to the Hardy class H(p) defined in Artola (Bolletino UMI (9) V:125–158, 2012) to ensure that a necessary convolution product remains valid in weighted spaces. The restriction, apparently new, is necessary for the present treatment.
      PubDate: 2017-06-01
      DOI: 10.1007/s40574-016-0079-8
      Issue No: Vol. 10, No. 2 (2017)
  • Some approximation properties of bivariate Bleimann–Butzer–Hahn
           operators based on ( p ,  q )-integers
    • Authors: M. Mursaleen; Md. Nasiruzzaman
      Pages: 271 - 289
      Abstract: In this paper, we apply (p, q)-calculus to construct generalized bivariate Bleimann–Butzer–Hahn operators based on (p, q)-integers and obtain Korovkin type approximation theorem. Furthermore, we compute the rate of convergence for these operators by using the modulus of continuity and Lipschitz type maximal function.
      PubDate: 2017-06-01
      DOI: 10.1007/s40574-016-0080-2
      Issue No: Vol. 10, No. 2 (2017)
  • Global regularity for $$\overline{\partial }$$ ∂ ¯ on an annulus
           between two weakly convex domains
    • Authors: Sayed Saber
      Abstract: Let X be a Stein manifold of dimension \(n \ge 3\) . Let \(\Omega _{1}\) be a weakly q-convex and \(\Omega _{2}\) be a weakly \((n-q-1)\) -convex in X with smooth boundaries such that \(\overline{\Omega }_{2}\Subset \Omega _{1}\Subset X\) . Assume that \(\Omega =\Omega _{1}\backslash \overline{\Omega }_{2}\) . In this paper, we establish sufficient conditions for the closed range of \(\overline{\partial }\) on \(\Omega \) . Moreover, we study the global boundary regularity of the \(\overline{\partial }\) -problem on \(\Omega \) .
      PubDate: 2017-07-20
      DOI: 10.1007/s40574-017-0135-z
  • I0 and rank-into-rank axioms
    • Authors: Vincenzo Dimonte
      Abstract: This is a survey about I0 and rank-into-rank axioms, with some previously unpublished proofs.
      PubDate: 2017-07-15
      DOI: 10.1007/s40574-017-0136-y
  • Entropic repulsion in $$ \nabla \phi ^p$$ ∇ ϕ p surfaces: a large
           deviation bound for all $$p\ge 1$$ p ≥ 1
    • Authors: Pietro Caputo; Fabio Martinelli; Fabio Lucio Toninelli
      Abstract: We consider the \((2+1)\) -dimensional generalized solid-on-solid (SOS) model, that is the random discrete surface with a gradient potential of the form \( \nabla \phi ^{p}\) , where \(p\in [1,+\infty ]\) . We show that at low temperature, for a square region \(\Lambda \) with side L, both under the infinite volume measure and under the measure with zero boundary conditions around \(\Lambda \) , the probability that the surface is nonnegative in \(\Lambda \) behaves like \(\exp (-4\beta \tau _{p,\beta } L H_p(L) )\) , where \(\beta \) is the inverse temperature, \(\tau _{p,\beta }\) is the surface tension at zero tilt, or step free energy, and \(H_p(L)\) is the entropic repulsion height, that is the typical height of the field when a positivity constraint is imposed. This generalizes recent results obtained in [8] for the standard SOS model ( \(p=1\) ).
      PubDate: 2017-07-15
      DOI: 10.1007/s40574-017-0137-x
  • Monodromy representations and surfaces with maximal Albanese dimension
    • Authors: Francesco Polizzi
      Abstract: We relate the existence of some surfaces of general type and maximal Albanese dimension to the existence of some monodromy representations of the braid group \(\mathsf {B}_2(C_2)\) in the symmetric group \(\mathsf {S}_n\) . Furthermore, we compute the number of such representations up to \(n=9\) , and we analyze the cases \(n \in \{2, \, 3, \, 4\}\) . For \(n=2, \, 3\) we recover some surfaces with \(p_g=q=2\) recently studied (with different methods) by the author and his collaborators, whereas for \(n=4\) we obtain some conjecturally new examples.
      PubDate: 2017-07-12
      DOI: 10.1007/s40574-017-0131-3
  • On real typical ranks
    • Authors: Alessandra Bernardi; Grigoriy Blekherman; Giorgio Ottaviani
      Abstract: We study typical ranks with respect to a real variety X. Examples of such are tensor rank (X is the Segre variety) and symmetric tensor rank (X is the Veronese variety). We show that any rank between the minimal typical rank and the maximal typical rank is also typical. We investigate typical ranks of n-variate symmetric tensors of order d, or equivalently homogeneous polynomials of degree d in n variables, for small values of n and d. We show that 4 is the unique typical rank of real ternary cubics, and quaternary cubics have typical ranks 5 and 6 only. For ternary quartics we show that 6 and 7 are typical ranks and that all typical ranks are between 6 and 8. For ternary quintics we show that the typical ranks are between 7 and 13.
      PubDate: 2017-07-10
      DOI: 10.1007/s40574-017-0134-0
  • Normal measures and strongly compact cardinals
    • Authors: Arthur W. Apter
      Abstract: We prove four theorems concerning the number of normal measures a non- \((\kappa + 2)\) -strong strongly compact cardinal \(\kappa \) can carry.
      PubDate: 2017-06-30
      DOI: 10.1007/s40574-017-0133-1
  • Uniqueness of solutions to some quasilinear elliptic equations whose
           Hamiltonian has natural growth in the gradient
    • Authors: Michel Artola
      Abstract: The paper discusses uniqueness of solutions to stationary elliptic problems of the type $$\begin{aligned} A(u)+H(u)=f\in {\mathcal {D}}'(\Omega ), \end{aligned}$$ where \(\Omega \ \in R^{N},\ \) \(u\in W^{1,p}(\Omega )\ (1\le p\le +\infty ),\ A(u)\ \) is an elliptic operator, \(H(u)\ \) is an Hamiltonian that grows with \(\left {\nabla u}\right ^{p}\) and f is given. Methods introduced in Artola (Boll UMI 6(5-B):51–71, 1986), (Proceedings of the International Conference on Generalized Functions, (ICGF 2000). Cambridge Scientific Publishers, Cambridge, 51–92, 2004), (Ricerche di Matematica XLIV, fasc. 2:400–420, 1995) for quasilinear parabolic or elliptic equations, together with properties for some continuity moduli, are used to improve some results from Barles and Murat (Arch Ration Mech Anal 133(1):77–101, 1995) for bounded solutions and from Barles and Porretta (Ann Scuola Norm Sup Pisa Cl Sci 5(1):107–136, 2006), Lions (J Anal Math 45: 234–254, 1985) for unbounded solutions, when 1 \(\le p\le 2.\) Unilateral problems are considered and the case where f depends on the solution u is also discussed.
      PubDate: 2017-06-23
      DOI: 10.1007/s40574-017-0130-4
  • Deterministic particle approximation of scalar conservation laws
    • Authors: M. Di Francesco; S. Fagioli; M. D. Rosini
      Abstract: In this paper we prove that the unique entropy solution to a scalar nonlinear conservation law with strictly monotone velocity and nonnegative initial condition can be rigorously obtained as the large particle limit of a microscopic follow-the-leader type model, which is interpreted as the discrete Lagrangian approximation of the nonlinear scalar conservation law. The result is complemented with some numerical simulations.
      PubDate: 2017-06-20
      DOI: 10.1007/s40574-017-0132-2
  • A note on gonality of curves on general hypersurfaces
    • Authors: Francesco Bastianelli; Ciro Ciliberto; Flaminio Flamini; Paola Supino
      Abstract: This short paper concerns the existence of curves with low gonality on smooth hypersurfaces \(X\subset \mathbb {P}^{n+1}\) . After reviewing a series of results on this topic, we report on a recent progress we achieved as a product of the Workshop Birational geometry of surfaces, held at University of Rome “Tor Vergata” on January 11th–15th, 2016. In particular, we obtained that if \(X\subset \mathbb {P}^{n+1}\) is a very general hypersurface of degree \(d\geqslant 2n+2\) , the least gonality of a curve \(C\subset X\) passing through a general point of X is \(\mathrm {gon}(C)=d-\left\lfloor \frac{\sqrt{16n+1}-1}{2}\right\rfloor \) , apart from some exceptions we list.
      PubDate: 2017-05-30
      DOI: 10.1007/s40574-017-0129-x
  • Calabi–Yau quotients with terminal singularities
    • Authors: Filippo F. Favale
      Abstract: In this paper we are interested in quotients of Calabi–Yau threefolds with isolated singularities. In particular, we analyze the case when X / G has terminal singularities. We prove that, if G is cyclic of prime order and X / G has terminal singularities, then G has order lower than or equal to 5.
      PubDate: 2017-05-25
      DOI: 10.1007/s40574-017-0128-y
  • Spectral estimates of the p -Laplace Neumann operator and Brennan’s
    • Authors: Vladimir Gol’dshtein; Valerii Pchelintsev; Alexander Ukhlov
      Abstract: In this paper we obtain lower estimates for the first non-trivial eigenvalue of the p-Laplace Neumann operator in bounded simply connected planar domains \(\varOmega \subset {\mathbb {R}}^2\) . This study is based on a quasiconformal version of the universal two-weight Poincaré–Sobolev inequalities obtained in our previous papers for conformal weights and its non weighted version for so-called K-quasiconformal \(\alpha \) -regular domains. The main technical tool is the geometric theory of composition operators in relation with the Brennan’s conjecture for (quasi)conformal mappings.
      PubDate: 2017-05-17
      DOI: 10.1007/s40574-017-0127-z
  • Can we classify complete metric spaces up to isometry?
    • Authors: Luca Motto Ros
      Abstract: We survey some old and new results concerning the classification of complete metric spaces up to isometry, a theme initiated by Gromov, Vershik and others. All theorems concerning separable spaces appeared in various papers in the last twenty years: here we tried to present them in a unitary and organic way, sometimes with new and/or simplified proofs. The results concerning non-separable spaces (and, to some extent, the setup and techniques used to handle them) are instead new, and suggest new lines of investigation in this area of research.
      PubDate: 2017-04-27
      DOI: 10.1007/s40574-017-0125-1
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