Publicacions matemàtiques
Publicacions Matemàtiques (ISSN: 0214-1493 imprès, 2014-4350 en línia) és una revista que publica articles de qualitat de recerca de tots els camps de les matemàtiques i, de tant en quant, també actes de congressos. Aquesta revista va començar l'any 1976 amb el títol de Publicacions de la Secció de Matemàtiques (ISSN: 0210-2978 imprès, 2014-4369 en línia). L'any 1988 va introduir un nou format i comitè editorial que van donar lloc a la segona etapa d'aquesta revista.

 

Darreres entrades:
2017-12-05
05:07
16 p, 280.4 KB Infinite series identities involving quadratic and cubic harmonic numbers / Wang, Xiaoyuan (Dalian Jiaotong University (Xina). School of Science) ; Chu, Wenchang (Zhoukou Normal University (Xina). School of Mathematics and Statistics)
By means of the modified Abel lemma on summation by parts, we investigate infinite series involving quadratic and cubic harmonic numbers. Several infinite series identities are established for π 2 and ζ(3) as consequences.
2018 - 10.5565/329970
Publicacions matemàtiques, Vol. 62 Núm. 1 (2018) , p. 285-300 (Articles)  
2017-12-05
05:07
32 p, 419.6 KB Strong inner inverses in endomorphism rings of vector spaces / Bergman, George M. (University of California)
For V a vector space over a field, or more generally, over a division ring, it is well-known that every x ∈ End(V ) has an inner inverse; that is, that there exists y ∈ End(V ) satisfying xyx = x. [...]
2018 - 10.5565/329969
Publicacions matemàtiques, Vol. 62 Núm. 1 (2018) , p. 253-284 (Articles)  
2017-12-05
05:07
39 p, 494.2 KB The Dirichlet problem for nonlocal Lévy-type operators / Rutkowski, Artur (Wroclaw University of Science and Technology (Wroclaw, Polònia). Faculty of Pure and Applied Mathematics)
We present the theory of the Dirichlet problem for nonlocal operators which are the generators of general pure-jump symmetric Lévy processes whose Lévy measures need not be absolutely continuous. We establish basic facts about the Sobolev spaces for such operators, in particular we prove the existence and uniqueness of weak solutions. [...]
2018 - 10.5565/329968
Publicacions matemàtiques, Vol. 62 Núm. 1 (2018) , p. 213-251 (Articles)  
2017-12-05
05:07
27 p, 398.3 KB A trace theorem for Besov functions in spaces of homogeneous type / Marcos, Miguel Andrés (Consejo Nacional de Investigaciones Científicas y Técnicas - CONICET (Argentina))
The aim of this paper is to prove a trace theorem for Besov functions in the metric setting, generalizing a known result from A. Jonsson and H. Wallin in the Euclidean case. We show that the trace of a Besov space defined in a ‘big set' X is another Besov space defined in the ‘small set' F ⊂ X. [...]
2018 - 10.5565/329934
Publicacions matemàtiques, Vol. 62 Núm. 1 (2018) , p. 185-211 (Articles)  
2017-12-05
05:07
7 p, 288.2 KB On the exponent of convergence of negatively curved manifolds without Green's function / Melián, María V. (Universidad Autónoma de Madrid. Departamento de Matemáticas) ; Rodríguez García, Jose M. (Universidad Carlos III de Madrid. Departamento de Matemáticas) ; Tourís, Eva (Universidad Autónoma de Madrid. Departamento de Matemáticas)
In this paper we prove that for every complete n-dimensional Riemannian manifold without Green's function and with its sectional curvatures satisfying K ≤−1, the exponent of convergence is greater than or equal to n − 1. [...]
2018 - 10.5565/329933
Publicacions matemàtiques, Vol. 62 Núm. 1 (2018) , p. 177-183 (Articles)  
2017-12-05
05:07
16 p, 424.3 KB Tangents, rectifiability, and corkscrew domains / Azzam, Jonas (University of Edinburgh. School of Mathematics)
In a recent paper, Csörnyei and Wilson prove that curves in Euclidean space of σ-finite length have tangents on a set of positive H 1-measure. They also show that a higher dimensional analogue of this result is not possible without some additional assumptions. [...]
2018 - 10.5565/329932
Publicacions matemàtiques, Vol. 62 Núm. 1 (2018) , p. 161-176 (Articles)  
2017-12-05
05:07
27 p, 462.9 KB Weighted Solyanik estimates for the strong maximal function / Hagelstein, Paul (Baylor University (Waco, Estats Units d'Amèrica). Department of Mathematics) ; Parissis, Ioannis (Universidad del País Vasco. Departamento de Matemáticas)
2018 - 10.5565/329931
Publicacions matemàtiques, Vol. 62 Núm. 1 (2018) , p. 133-159 (Articles)  
2017-12-05
05:07
19 p, 446.4 KB On Poincaré–Bendixson theorem and non-trivial minimal sets in planar nonsmooth vector fields / Buzzi, Claudio Aguinaldo (Universidade Estadual Paulista(Brazil). Departamento de Matemática) ; de Carvalho, Tiago (Universidade Estadual Paulista(Brazil). Departamento de Matemática) ; D. Euzébio, Rodrigo (Universidade Estadual Paulista (Brasil). Departamento de Matemática)
In this paper some qualitative and geometric aspects of nonsmooth vector fields theory are discussed. A Poincaré–Bendixson Theorem for a class of nonsmooth systems is presented. In addition, a minimal set in planar Filippov systems not predicted in classical Poincaré–Bendixson theory and whose interior is non-empty is exhibited. [...]
2018 - 10.5565/329930
Publicacions matemàtiques, Vol. 62 Núm. 1 (2018) , p. 113-131 (Articles)  
2017-12-05
05:07
17 p, 359.4 KB Stability of generalized linear Weingarten hypersurfaces immersed in the Euclidean space / da Silva, Jonatan F. (Universidade Federal do Ceará (Brasil). Departamento de Matemática) ; de Lima, Henrique F. (Universidade Federal de Campina Grande. Departamento de Matemática) ; Velásquez, Marco Antonio L. (Universidade Federal de Campina Grande. Departamento de Matemática)
Given a positive function F defined on the unit Euclidean sphere and satisfying a suitable convexity condition, we consider, for hypersurfaces Mn immersed in the Euclidean space Rn+1, the so-called k-th anisotropic mean curvatures HF k, 0 ≤ k ≤ n. [...]
2018 - 10.5565/329929
Publicacions matemàtiques, Vol. 62 Núm. 1 (2018) , p. 95-111 (Articles)  
2017-12-05
05:07
20 p, 392.3 KB Weighted square function inequalities / Osekowski, Adam (University of Warsaw (Polònia). Department of Mathematics, Informatics and Mechanics)
For an integrable function f on [0, 1)d, let S(f) and M f denote the corresponding dyadic square function and the dyadic maximal function of f, respectively. The paper contains the proofs of the following statements. [...]
2018 - 10.5565/329928
Publicacions matemàtiques, Vol. 62 Núm. 1 (2018) , p. 75-94 (Articles)