Subjects -> MATHEMATICS (Total: 1013 journals)
    - APPLIED MATHEMATICS (92 journals)
    - GEOMETRY AND TOPOLOGY (23 journals)
    - MATHEMATICS (714 journals)
    - MATHEMATICS (GENERAL) (45 journals)
    - NUMERICAL ANALYSIS (26 journals)
    - PROBABILITIES AND MATH STATISTICS (113 journals)

MATHEMATICS (714 journals)                  1 2 3 4 | Last

Showing 1 - 200 of 538 Journals sorted alphabetically
Abakós     Open Access   (Followers: 4)
Abhandlungen aus dem Mathematischen Seminar der Universitat Hamburg     Hybrid Journal   (Followers: 2)
Accounting Perspectives     Full-text available via subscription   (Followers: 4)
ACM Transactions on Algorithms (TALG)     Hybrid Journal   (Followers: 13)
ACM Transactions on Computational Logic (TOCL)     Hybrid Journal   (Followers: 5)
ACM Transactions on Mathematical Software (TOMS)     Hybrid Journal   (Followers: 6)
ACS Applied Materials & Interfaces     Hybrid Journal   (Followers: 44)
Acta Applicandae Mathematicae     Hybrid Journal   (Followers: 2)
Acta Mathematica Hungarica     Hybrid Journal   (Followers: 3)
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: 9)
Advances in Applied Clifford Algebras     Hybrid Journal   (Followers: 6)
Advances in Catalysis     Full-text available via subscription   (Followers: 7)
Advances in Complex Systems     Hybrid Journal   (Followers: 10)
Advances in Computational Mathematics     Hybrid Journal   (Followers: 16)
Advances in Decision Sciences     Open Access   (Followers: 4)
Advances in Difference Equations     Open Access   (Followers: 4)
Advances in Fixed Point Theory     Open Access  
Advances in Geosciences (ADGEO)     Open Access   (Followers: 21)
Advances in Linear Algebra & Matrix Theory     Open Access   (Followers: 7)
Advances in Materials Science     Open Access   (Followers: 23)
Advances in Mathematical Physics     Open Access   (Followers: 6)
Advances in Mathematics     Full-text available via subscription   (Followers: 18)
Advances in Numerical Analysis     Open Access   (Followers: 4)
Advances in Operations Research     Open Access   (Followers: 13)
Advances in Operator Theory     Hybrid Journal  
Advances in Pure Mathematics     Open Access   (Followers: 10)
Advances in Science and Research (ASR)     Open Access   (Followers: 8)
Aequationes Mathematicae     Hybrid Journal   (Followers: 2)
African Journal of Educational Studies in Mathematics and Sciences     Full-text available via subscription   (Followers: 8)
African Journal of Mathematics and Computer Science Research     Open Access   (Followers: 5)
Afrika Matematika     Hybrid Journal   (Followers: 2)
Air, Soil & Water Research     Open Access   (Followers: 7)
AKSIOMATIK : Jurnal Penelitian Pendidikan dan Pembelajaran Matematika     Open Access  
Al-Jabar : Jurnal Pendidikan Matematika     Open Access  
Al-Qadisiyah Journal for Computer Science and Mathematics     Open Access   (Followers: 3)
AL-Rafidain Journal of Computer Sciences and Mathematics     Open Access   (Followers: 4)
Algebra and Logic     Hybrid Journal   (Followers: 9)
Algebra Colloquium     Hybrid Journal   (Followers: 3)
Algebra Universalis     Hybrid Journal   (Followers: 3)
Algorithmic Operations Research     Open Access   (Followers: 7)
Algorithms     Open Access   (Followers: 15)
Algorithms Research     Open Access   (Followers: 2)
American Journal of Computational and Applied Mathematics     Open Access   (Followers: 4)
American Journal of Mathematical Analysis     Open Access   (Followers: 1)
American Journal of Mathematical and Management Sciences     Hybrid Journal  
American Journal of Mathematics     Full-text available via subscription   (Followers: 8)
American Journal of Operations Research     Open Access   (Followers: 6)
American Mathematical Monthly     Full-text available via subscription   (Followers: 3)
An International Journal of Optimization and Control: Theories & Applications     Open Access   (Followers: 13)
Analele Universitatii Ovidius Constanta - Seria Matematica     Open Access  
Analysis and Applications     Hybrid Journal   (Followers: 2)
Analysis and Mathematical Physics     Hybrid Journal   (Followers: 7)
Anargya : Jurnal Ilmiah Pendidikan Matematika     Open Access  
Annales Mathematicae Silesianae     Open Access  
Annales mathématiques du Québec     Hybrid Journal   (Followers: 3)
Annales Universitatis Mariae Curie-Sklodowska, sectio A – Mathematica     Open Access   (Followers: 1)
Annales Universitatis Paedagogicae Cracoviensis. Studia Mathematica     Open Access  
Annali di Matematica Pura ed Applicata     Hybrid Journal   (Followers: 1)
Annals of Combinatorics     Hybrid Journal   (Followers: 3)
Annals of Data Science     Hybrid Journal   (Followers: 17)
Annals of Functional Analysis     Hybrid Journal   (Followers: 2)
Annals of Mathematics     Full-text available via subscription   (Followers: 5)
Annals of Mathematics and Artificial Intelligence     Hybrid Journal   (Followers: 13)
Annals of PDE     Hybrid Journal  
Annals of Pure and Applied Logic     Open Access   (Followers: 5)
Annals of the Alexandru Ioan Cuza University - Mathematics     Open Access   (Followers: 1)
Annals of the Institute of Statistical Mathematics     Hybrid Journal   (Followers: 1)
Annals of West University of Timisoara - Mathematics     Open Access   (Followers: 1)
Annals of West University of Timisoara - Mathematics and Computer Science     Open Access   (Followers: 2)
Annuaire du Collège de France     Open Access   (Followers: 6)
ANZIAM Journal     Open Access   (Followers: 1)
Applicable Algebra in Engineering, Communication and Computing     Hybrid Journal   (Followers: 3)
Applications of Mathematics     Hybrid Journal   (Followers: 3)
Applied Categorical Structures     Hybrid Journal   (Followers: 5)
Applied Computational Intelligence and Soft Computing     Open Access   (Followers: 17)
Applied Mathematics     Open Access   (Followers: 6)
Applied Mathematics     Open Access   (Followers: 6)
Applied Mathematics & Optimization     Hybrid Journal   (Followers: 7)
Applied Mathematics - A Journal of Chinese Universities     Hybrid Journal   (Followers: 1)
Applied Mathematics and Nonlinear Sciences     Open Access   (Followers: 1)
Applied Mathematics Letters     Full-text available via subscription   (Followers: 4)
Applied Mathematics Research eXpress     Hybrid Journal   (Followers: 1)
Applied Network Science     Open Access   (Followers: 3)
Applied Numerical Mathematics     Hybrid Journal   (Followers: 4)
Applied Spatial Analysis and Policy     Hybrid Journal   (Followers: 5)
Arab Journal of Mathematical Sciences     Open Access   (Followers: 3)
Arabian Journal of Mathematics     Open Access   (Followers: 1)
Archive for Mathematical Logic     Hybrid Journal   (Followers: 3)
Archive of Applied Mechanics     Hybrid Journal   (Followers: 4)
Archive of Numerical Software     Open Access  
Archives of Computational Methods in Engineering     Hybrid Journal   (Followers: 5)
Armenian Journal of Mathematics     Open Access  
Arnold Mathematical Journal     Hybrid Journal   (Followers: 1)
Artificial Satellites     Open Access   (Followers: 22)
Asia-Pacific Journal of Operational Research     Hybrid Journal   (Followers: 3)
Asian Journal of Algebra     Open Access   (Followers: 1)
Asian Research Journal of Mathematics     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: 5)
Australian Senior Mathematics Journal     Full-text available via subscription   (Followers: 1)
Automatic Documentation and Mathematical Linguistics     Hybrid Journal   (Followers: 5)
Axioms     Open Access   (Followers: 1)
Baltic International Yearbook of Cognition, Logic and Communication     Open Access   (Followers: 2)
Banach Journal of Mathematical Analysis     Hybrid Journal  
Basin Research     Hybrid Journal   (Followers: 6)
BIBECHANA     Open Access  
Biomath     Open Access  
BIT Numerical Mathematics     Hybrid Journal  
Boletim Cearense de Educação e História da Matemática     Open Access  
Boletim de Educação Matemática     Open Access  
Boletín de la Sociedad Matemática Mexicana     Hybrid Journal  
Bollettino dell'Unione Matematica Italiana     Full-text available via subscription  
British Journal for the History of Mathematics     Hybrid Journal   (Followers: 2)
British Journal of Mathematical and Statistical Psychology     Full-text available via subscription   (Followers: 19)
British Journal of Mathematics & Computer Science     Full-text available via subscription   (Followers: 1)
Buletinul Academiei de Stiinte a Republicii Moldova. Matematica     Open Access   (Followers: 3)
Bulletin des Sciences Mathamatiques     Full-text available via subscription   (Followers: 3)
Bulletin of Dnipropetrovsk University. Series : Communications in Mathematical Modeling and Differential Equations Theory     Open Access   (Followers: 3)
Bulletin of Mathematical Sciences     Open Access   (Followers: 1)
Bulletin of Symbolic Logic     Full-text available via subscription   (Followers: 4)
Bulletin of Taras Shevchenko National University of Kyiv. Series: Physics and Mathematics     Open Access  
Bulletin of the Australian Mathematical Society     Full-text available via subscription   (Followers: 2)
Bulletin of the Brazilian Mathematical Society, New Series     Hybrid Journal  
Bulletin of the Iranian Mathematical Society     Hybrid Journal  
Bulletin of the London Mathematical Society     Hybrid Journal   (Followers: 3)
Bulletin of the Malaysian Mathematical Sciences Society     Hybrid Journal  
Cadernos do IME : Série Matemática     Open Access  
Calculus of Variations and Partial Differential Equations     Hybrid Journal   (Followers: 1)
Canadian Journal of Mathematics / Journal canadien de mathématiques     Hybrid Journal  
Canadian Journal of Science, Mathematics and Technology Education     Hybrid Journal   (Followers: 20)
Canadian Mathematical Bulletin     Hybrid Journal  
Carpathian Mathematical Publications     Open Access  
Catalysis in Industry     Hybrid Journal  
CAUCHY     Open Access   (Followers: 1)
CEAS Space Journal     Hybrid Journal   (Followers: 5)
CHANCE     Hybrid Journal   (Followers: 5)
Chaos, Solitons & Fractals     Hybrid Journal   (Followers: 1)
Chaos, Solitons & Fractals : X     Open Access   (Followers: 1)
ChemSusChem     Hybrid Journal   (Followers: 8)
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  
Ciencia     Open Access  
CODEE Journal     Open Access  
Cogent Mathematics     Open Access   (Followers: 2)
Cognitive Computation     Hybrid Journal   (Followers: 3)
Collectanea Mathematica     Hybrid Journal  
College Mathematics Journal     Hybrid Journal   (Followers: 3)
COMBINATORICA     Hybrid Journal  
Combinatorics, Probability and Computing     Hybrid Journal   (Followers: 5)
Combustion Theory and Modelling     Hybrid Journal   (Followers: 22)
Commentarii Mathematici Helvetici     Hybrid Journal   (Followers: 1)
Communications in Combinatorics and Optimization     Open Access  
Communications in Contemporary Mathematics     Hybrid Journal  
Communications in Mathematical Physics     Hybrid Journal   (Followers: 3)
Communications On Pure & Applied Mathematics     Hybrid Journal   (Followers: 6)
Complex Analysis and its Synergies     Open Access   (Followers: 1)
Complex Variables and Elliptic Equations: An International Journal     Hybrid Journal  
Compositio Mathematica     Full-text available via subscription   (Followers: 2)
Comptes Rendus : Mathematique     Open Access  
Computational and Applied Mathematics     Hybrid Journal   (Followers: 3)
Computational and Mathematical Methods     Hybrid Journal  
Computational and Mathematical Methods in Medicine     Open Access   (Followers: 2)
Computational and Mathematical Organization Theory     Hybrid Journal   (Followers: 2)
Computational Complexity     Hybrid Journal   (Followers: 5)
Computational Mathematics and Modeling     Hybrid Journal   (Followers: 8)
Computational Mechanics     Hybrid Journal   (Followers: 12)
Computational Methods and Function Theory     Hybrid Journal  
Computational Optimization and Applications     Hybrid Journal   (Followers: 9)
Computers & Mathematics with Applications     Full-text available via subscription   (Followers: 12)
Confluentes Mathematici     Hybrid Journal  
Constructive Mathematical Analysis     Open Access  
Contributions to Discrete Mathematics     Open Access  
Contributions to Game Theory and Management     Open Access  
COSMOS     Hybrid Journal   (Followers: 1)
Cross Section     Full-text available via subscription   (Followers: 1)
Cryptography and Communications     Hybrid Journal   (Followers: 11)
Cuadernos de Investigación y Formación en Educación Matemática     Open Access  
Cubo. A Mathematical Journal     Open Access  
Current Research in Biostatistics     Open Access   (Followers: 8)
Czechoslovak Mathematical Journal     Hybrid Journal  
Daya Matematis : Jurnal Inovasi Pendidikan Matematika     Open Access  
Demographic Research     Open Access   (Followers: 14)
Design Journal : An International Journal for All Aspects of Design     Hybrid Journal   (Followers: 35)
Desimal : Jurnal Matematika     Open Access  
Dhaka University Journal of Science     Open Access  
Differential Equations and Dynamical Systems     Hybrid Journal   (Followers: 3)
Differentsial'nye Uravneniya     Open Access  
Digital Experiences in Mathematics Education     Hybrid Journal   (Followers: 3)
Discrete Mathematics     Hybrid Journal   (Followers: 7)
Discrete Mathematics & Theoretical Computer Science     Open Access   (Followers: 1)
Discrete Mathematics, Algorithms and Applications     Hybrid Journal   (Followers: 2)
Discussiones Mathematicae - General Algebra and Applications     Open Access  
Discussiones Mathematicae Graph Theory     Open Access   (Followers: 1)
Diskretnaya Matematika     Full-text available via subscription  
Doklady Akademii Nauk     Open Access  

        1 2 3 4 | Last

Similar Journals
Journal Cover
Bollettino dell'Unione Matematica Italiana
Journal Prestige (SJR): 0.676
Citation Impact (citeScore): 1
Number of Followers: 0  
 
  Full-text available via subscription Subscription journal
ISSN (Print) 1972-6724 - ISSN (Online) 2198-2759
Published by Springer-Verlag Homepage  [2467 journals]
  • Old perturbative methods for a new problem in Celestial Mechanics: the
           space debris dynamics

    • Free pre-print version: Loading...

      Abstract: Abstract Perturbative methods have been developed and widely used in the XVIII and XIX century to study the behavior of N-body problems in Celestial Mechanics. Such methods apply to nearly-integrable Hamiltonian systems and they have the remarkable property to be constructive. A well-known application of perturbative techniques is represented by the construction of the so-called proper elements, which are quasi-invariants of the dynamics, obtained by removing the perturbing function to higher orders. They have been used to identify families of asteroids; more recently, they have been used in the context of space debris, which is the main core of this work. We describe the dynamics of space debris, considering a model including the Earth’s gravitational attraction, the influence of Sun and Moon, and the Solar radiation pressure. We construct a Lie series normalization procedure and we compute the proper elements associated to the orbital elements. To provide a concrete example, we analyze three different break-up events with nearby initial orbital elements. We use the information coming from proper elements to successfully group the fragments; the clusterization is supported by statistical data analysis and by machine learning methods. These results show that perturbative methods still play an important role in the study of the dynamics of space objects.
      PubDate: 2023-01-24
       
  • Reversibility, irreversibility, friction and nonequilibrium ensembles in
           N–S equations

    • Free pre-print version: Loading...

      Abstract: Abstract Viscosity, as a physical property of fluids, reflects an average effect over a chaotic microscopic motion described by Hamiltonian equations. It is proposed, as an example, that stationary states of an incompressible fluid subject to a constant force, can be described via several ensembles, in strict analogy with equilibrium Statistical Mechanics.
      PubDate: 2023-01-18
       
  • Some fixed point theorems and applications in Busemann spaces

    • Free pre-print version: Loading...

      Abstract: Abstract In this paper, we prove a generalized version of the Darbo–Sadovskii fixed point theorem in Busemann spaces and as an application, we prove the famous Petryshyn’s theorem for k-set contraction in hyperbolic spaces for \(k\in [0,\frac{1}{2})\) . We also obtain fixed point results for certain general classes of mappings in Busemann spaces.
      PubDate: 2023-01-17
       
  • Chaotic light scattering around extremal black holes

    • Free pre-print version: Loading...

      Abstract: Abstract We show that the scattering of light in the field of \(N\ge 3\) static extremal black holes is chaotic in the planar case. The relativistic dynamics of such extremal objects reduce to that of a classical Hamiltonian system. Certain values of the dilaton coupling then allow one to apply techniques from symbolic dynamics and classical potential scattering. This results in a lower bound on the topological entropy of order \(\log (N-1)\) , thus proving the emergence of chaotic scattering for \(N \ge 3\) black holes.
      PubDate: 2023-01-05
       
  • Normal form and dynamics of the Kirchhoff equation

    • Free pre-print version: Loading...

      Abstract: Abstract We summarize some recent results on the Cauchy problem for the Kirchhoff equation $$\begin{aligned} \partial _{tt} u - \Delta u \Bigg ( 1 + \int _{{{\mathbb {T}}}^d} \nabla u ^2 \Bigg ) = 0 \end{aligned}$$ on the d-dimensional torus \({{\mathbb {T}}}^d\) , with initial data u(0, x), \(\partial _t u(0,x)\) of size \(\varepsilon \) in Sobolev class. While the standard local theory gives an existence time of order \(\varepsilon ^{-2}\) , a quasilinear normal form allows to give a lower bound on the existence time of the order of \(\varepsilon ^{-4}\) for all initial data, improved to \(\varepsilon ^{-6}\) for initial data satisfying a suitable nonresonance condition. We also use such a normal form in an ongoing work with F. Giuliani and M. Guardia to prove existence of chaotic-like motions for the Kirchhoff equation.
      PubDate: 2022-12-29
       
  • Stochastic and statistical stability of the classical Lorenz flow under
           perturbations modeling anthropogenic type forcing

    • Free pre-print version: Loading...

      Abstract: Abstract We review the results obtained in Gianfelice et al. (Commun Math Phys 313:745–779, 2012) and Gianfelice and Vaienti (J Stat Phys 181(1):163–211, 2020) on the stochastic and statistical stability of the classical Lorenz flow, where, looking at the Lorenz’63 ODE system as a simple—yet non trivial—model of the atmospheric circulation, the perturbation schemes introduced in these papers are designed to represent the effect of the so called anthropogenic forcing on the dynamic of the atmosphere.
      PubDate: 2022-12-28
       
  • On $$\alpha -$$ Bézier curves and surfaces

    • Free pre-print version: Loading...

      Abstract: Abstract In the given note, we present the generalization of Bézier curves depending upon the parameter \(\alpha \) , named as \(\alpha -\) Bézier curves. Also, we introduce tensor product \(\alpha -\) Bézier surfaces. We study some properties and degree elevation of these curves and surfaces. In the end, we show that the parameter provides us the flexibility to modify the curves as well as surfaces. To present it, we give some numerical examples with the help of Matlab.
      PubDate: 2022-12-10
       
  • Corrected iteration

    • Free pre-print version: Loading...

      Abstract: Abstract For \(\lambda \) inaccessible, we may consider \((<\lambda )\) -support iteration of some definable in fact specific \((<\lambda )\) -complete \(\lambda ^+\) -c.c. forcing notions. But do we have “preservation by restricting to a sub-sequence of the iterated forcing"' To regain it we “correct" the iteration. We prove this for a characteristic case for iterations which holds by “nice” for \(\lambda = \aleph _{0}.\) This is done generally in a work H. Horowitz and the author Shelah. This work is use in a work of the author in (Trans Am Math Soc 373(8):5351–5369, arXiv:0904.0817, 2020) where we use so called strongly \((< \lambda ^{+})\) -directed \({\textbf{m}}.\) We could here restrict ourselves to reasonable \({\textbf{m}}\) (see 2.13(3)).
      PubDate: 2022-12-04
       
  • Correction to: ACM curves in multiprojective spaces

    • Free pre-print version: Loading...

      Abstract: A Correction to this paper has been published: 10.1007/s40574-022-00319-7
      PubDate: 2022-12-01
      DOI: 10.1007/s40574-022-00321-z
       
  • Affine mobi spaces

    • Free pre-print version: Loading...

      Abstract: Abstract The category of mobi algebras has been introduced as a model to the unit interval of real numbers. The notion of mobi space over a mobi algebra has been proposed as a model for spaces with geodesic paths. In this paper we analyse the particular case of affine mobi spaces and show that there is an isomorphism of categories between modules over unitary rings with 1/2 and pointed affine mobi spaces over mobi algebras with 2.
      PubDate: 2022-12-01
      DOI: 10.1007/s40574-022-00324-w
       
  • Nonlinear weighted elliptic equations with Sobolev weights

    • Free pre-print version: Loading...

      Abstract: Abstract In this paper we are going to prove existence of solutions in \(W_{0}^{1,p}(\Omega )\) for the weighted elliptic equation $$\begin{aligned} \left\{ \begin{array}{ll} -\mathrm{div}(s(x)\, \nabla u ^{p-2}\,\nabla u) = f(x) &{}\quad \text{ in } \Omega ,\\ u = 0 &{}\quad \text{ on } \partial \Omega , \end{array} \right. \end{aligned}$$ under the assumption that the weight function s(x) is strictly positive and belongs to \(W^{1,p}(\Omega )\) . The proof will be based on a new technique, which takes advantage of the fact that s(x) is in a Sobolev space, and that will also be applied to other equations.
      PubDate: 2022-12-01
      DOI: 10.1007/s40574-021-00314-4
       
  • Intervals of varieties of involution semigroups with contrasting reduct
           intervals

    • Free pre-print version: Loading...

      Abstract: Abstract It is known that the lattice structure of an interval of varieties of involution semigroups can be very different from that of its reduct interval of varieties of semigroups, but it is uncertain how wide this difference can be. The present article exhibits intervals to show that the difference can be between being a two-element chain and having an infinite chain. These intervals are bounded by varieties generated by an involution semigroup of order between four and six. One of the involution semigroups of order four turns out to be a smallest involution semigroup to generate a non-Specht variety. In contrast, it is long known that every semigroup of order up to four generates a Specht variety.
      PubDate: 2022-12-01
      DOI: 10.1007/s40574-022-00317-9
       
  • Convergence theorems for solving a system of pseudomonotone variational
           inequalities using Bregman distance in Banach spaces

    • Free pre-print version: Loading...

      Abstract: Abstract In this paper, we present two new parallel Bregman projection algorithms for finding a common solution of a system of pseudomonotone variational inequality problems in a real reflexive Banach space. The first algorithm combines a parallel Bregman subgradient extragradient method with the Halpern iterative method for approximating a common solution of variational inequalities in reflexive Banach spaces. The second algorithm involves a parallel Bregman subgradient extragradient method, Halpern iterative method and a line search procedure which aims to avoid the condition of finding prior estimate of the Lipschitz constant of each cost operator. Two strong convergence results were proved under standard assumptions imposed on the cost operators and control sequences. Finally, we provide some numerical experiments to illustrate the behaviour of the sequences generated by the proposed algorithms.
      PubDate: 2022-12-01
      DOI: 10.1007/s40574-022-00322-y
       
  • The first cohomology group and weak amenability of a Morita context Banach
           algebra

    • Free pre-print version: Loading...

      Abstract: Abstract Motivated by the elaborate works of Forrest, Marcoux, and Zhang [Trans. Amer. Math. Soc. 354 (2002), 1435–1452 and 4131–4151] on determining the first cohomology group and studying n-weak amenability of triangular and module extension Banach algebras, we investigate the same notions for a Morita context Banach algebra \(\mathbb {G}=\left[ \begin{array}{cc} \mathbb {A}&{} \ \mathbb {M}\\ \mathbb {N}&{} \ \mathbb {B}\end{array} \right] ,\) where \(\mathbb {A}\) and \(\mathbb {B}\) are Banach algebras, \(\mathbb {M}\) and \(\mathbb {N}\) are Banach \((\mathbb {A},\mathbb {B})\) and \((\mathbb {B},\mathbb {A})\) -bimodules, respectively. We describe the \(n^{\text {t}h}\) -dual \(\mathbb {G}^{(n)}\) of \(\mathbb {G}\) and characterize the structure of derivations from \(\mathbb {G}\) to \(\mathbb {G}^{(n)}\) for studying the first cohomology group \(\mathbf{H}^1\left( \mathbb {G}, \mathbb {G}^{(n)}\right) \) and characterizing the n-weak amenability of \(\mathbb {G}\) . Our study provides some improvements of certain known results on the triangular Banach algebras. The results are then applied to the full matrix Banach algebras \(\mathbb {M}_k(\mathbb {A})\) . Some examples illustrating the results are also included, and several questions are also left undecided.
      PubDate: 2022-12-01
      DOI: 10.1007/s40574-022-00320-0
       
  • Hilbert’s $$19{\text {th}}$$ problem revisited

    • Free pre-print version: Loading...

      Abstract: Abstract In this survey article we revisit Hilbert’s 19th problem concerning the regularity of minimizers of variational integrals. We first discuss the classical theory (that is, the statement and resolution of Hilbert’s problem in all dimensions). We then discuss recent results concerning the regularity of minimizers of degenerate convex functionals. Finally, we discuss some open problems. Exercises are included for the benefit of researchers who are entering the subject.
      PubDate: 2022-12-01
      DOI: 10.1007/s40574-021-00315-3
       
  • ACM curves in multiprojective spaces

    • Free pre-print version: Loading...

      Abstract: Abstract We consider arithmetically Cohen–Macaulay (shortened to ACM) curves in a multiprojective space Y, i.e. curves \(T\subset Y\) such that the restriction map \(H^0(L)\rightarrow H^0(L_{ T})\) is surjective for all line bundles L on Y such that \(H^0(L)\ne 0\) . We prove that there are many such curves if all factors have dimension at least 3, but that T strongly resembles a rational normal curve if Y has \(\mathbb {P}^1\) as one of its factors.
      PubDate: 2022-12-01
      DOI: 10.1007/s40574-022-00319-7
       
  • A priori Lipschitz estimates for nonlinear equations with mixed local and
           nonlocal diffusion via the adjoint-Bernstein method

    • Free pre-print version: Loading...

      Abstract: Abstract We establish a priori Lipschitz estimates for equations with mixed local and nonlocal diffusion, coercive gradient terms and unbounded right-hand side in Lebesgue spaces through an integral refinement of the Bernstein method. This relies on a nonlinear, nonlocal and variational version of the Bochner identity that involves the adjoint equation of the linearization of the initial problem.
      PubDate: 2022-11-05
      DOI: 10.1007/s40574-022-00340-w
       
  • Some remarks on the periodic motions of a bouncing ball

    • Free pre-print version: Loading...

      Abstract: Abstract We consider the vertical motion of a free falling ball bouncing elastically on a racket moving in the vertical direction according to a regular 1-periodic function f. For fixed coprime p, q we study existence, stability in the sense of Lyapunov and multiplicity of p periodic motions making q bounces in a period. If f is real analytic we prove that one periodic motion is unstable and give some information on the set of these motions.
      PubDate: 2022-10-28
      DOI: 10.1007/s40574-022-00339-3
       
  • Uniqueness of hypersurfaces in weighted product spaces via maximum
           principles for the drift Laplacian

    • Free pre-print version: Loading...

      Abstract: Abstract We apply suitable maximum principles for the drift Laplacian to obtain several uniqueness results concerning complete two-sided hypersurfaces immersed with constant f-mean curvature in a weighted product space of form \({\mathbb {R}}\times M_{f}^{n}\) and such that its potential function f does not depend on the parameter \(t\in {\mathbb {R}}\) . Among these results, we prove that the slices are the only complete two-sided f-minimal hypersurfaces lying in a half-space of \({\mathbb {R}}\times M_{f}^{n}\) and such that the Bakry–Émeri–Ricci tensor is bounded from below. Furthermore, we study the f-mean curvature equation related to entire graphs defined on the base \(M^{n}\) .
      PubDate: 2022-10-11
      DOI: 10.1007/s40574-022-00337-5
       
  • Statistical and transport properties of a one-dimensional random walk with
           periodically distributed trapping intervals

    • Free pre-print version: Loading...

      Abstract: Abstract Following the kind invitation of the organizers of the Fourth DinAmicI Day, I gave on December, 17, 2021, a talk concerning the study of a random walk model in a trapping environment. This paper contains an extended summary of our main results. We will describe statistical and transport properties for sequences of i.i.d. jumps with finite variance in the presence of periodically distributed traps of finite size on the real line. In particular, we will emphasise connections with strongly chaotic deterministic systems and other stochastic processes.
      PubDate: 2022-10-07
      DOI: 10.1007/s40574-022-00336-6
       
 
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
 


Your IP address: 3.239.119.61
 
Home (Search)
API
About JournalTOCs
News (blog, publications)
JournalTOCs on Twitter   JournalTOCs on Facebook

JournalTOCs © 2009-