Enviaments recents

  • Quina relació hi ha entre els queviures, la fotografia i l'àlgebra de matrius? 

    Gómez Urgellés, Joan Vicenç (Edicions de la Universitat de Barcelona, 2018-06-11)
    Article
    Accés obert
  • Qualitative results for a mixture of Green-Lindsay thermoelastic solids 

    Magaña Nieto, Antonio; Muñoz Rivera, Jaime E.; Naso, Maria Grazia; Quintanilla de Latorre, Ramón (2018-07)
    Article
    Accés obert
    We study qualitative properties of the solutions of the system of partial differential equations modeling thermomechanical deformations for mixtures of thermoelastic solids when the theory of Green and Lindsay for the ...
  • On doubling and volume: chains 

    Freiman, Gregory A.; Serra Albó, Oriol (\Institute of Mathematics, Polish Academy of Sciences\, 2018-10-01)
    Article
    Accés obert
    The well-known Freiman–Ruzsa theorem provides a structural description of a set A of integers with |2A|=c|A| as a subset of a d–dimensional arithmetic progression P with |P|=c'|A|, where d and c' depend only on c. The ...
  • A damage classification approach for structural health monitoring using machine learning 

    Tibaduiza Burgos, Diego Alexander; Torres-Arredondo, Miguel Ángel; Vitola Oyaga, Jaime; Anaya Vejar, Maribel; Pozo Montero, Francesc (2018-12-02)
    Article
    Accés obert
    Inspection strategies with guided wave-based approaches give to structural health monitoring (SHM) applications several advantages, among them, the possibility of the use of real data from the structure which enables ...
  • Antimagic labelings of caterpillars 

    Lozano Bojados, Antoni; Mora Giné, Mercè; Seara Ojea, Carlos (2019-04-15)
    Article
    Accés restringit per política de l'editorial
    A k-antimagic labeling of a graph G is an injection from E(G) to {1,2, ..., |E(G)|+k} such that all vertex sums are pairwise distinct, where the vertex sum at vertex u is the sum of the labels assigned to edges incident ...
  • General bounds on limited broadcast domination 

    Hernando Martín, María del Carmen; Mora Giné, Mercè; Pelayo Melero, Ignacio Manuel; Cáceres, José; Puertas, M. Luz (Chapman & Hall/CRC, 2018-10-26)
    Article
    Accés obert
    Dominating broadcasting is a domination-type structure that models a transmission antenna network. In this paper, we study a limited version of this structure, that was proposed as a common framework for both broadcast and ...
  • Tomographic imaging of ionospheric plasma bubbles based on GNSS and radio occultation measurements 

    Prol, Fabricio dos Santos; Hernández Pajares, Manuel; Honorato Muella, Marcio Tadeu de Assis; Camargo, Paulo de Oliveira (Multidisciplinary Digital Publishing Institute (MDPI), 2018-10-01)
    Article
    Accés obert
    Total electron content measurements given by the global navigation satellite system (GNSS) have successfully presented results to capture the signatures of equatorial plasma bubbles. In contrast, the correct reproduction ...
  • Commutators in groups of piecewise projective homeomorphisms 

    Burillo Puig, José; Lodha, Yash; Reeves, Lawrence (2018-07-09)
    Article
    Accés restringit per política de l'editorial
    In [7] Monod introduced examples of groups of piecewise projective homeomorphisms which are not amenable and which do not contain free subgroups, and in [6] Lodha and Moore introduced examples of finitely presented groups ...
  • Computing denumerants in numerical 3-semigroups 

    Aguiló Gost, Francisco de Asis L.; Llena, David (2018)
    Article
    Accés restringit per política de l'editorial
    As far as we know, usual computer algebra packages can not compute denumerants for almost medium (about a hundred digits) or almost medium-large (about a thousand digits) input data in a reasonably time cost on an ordinary ...
  • From subkautz digraphs to cyclic kautz digraphs 

    Dalfó Simó, Cristina (2018-06-01)
    Article
    Accés obert
    Kautz digraphs K(d,l) are a well-known family of dense digraphs, widely studied as a good model for interconnection networks. Closely related with these, the cyclic Kautz digraphs CK(d,l) were recently introduced by Böhmová, ...
  • Precise ionospheric electron content monitoring from single- frequency GPS receivers 

    Hernández Pajares, Manuel; Roma Dollase, David; García Fernández, Miquel; Orús Pérez, Raul; García Rigo, Alberto (2018-10-01)
    Article
    Accés restringit per política de l'editorial
    The number of existing global positioning system (GPS) single-frequency receivers continues growing. More than 90% of GPS receivers are implemented as low-cost single-frequency chipsets embedded in smartphones. This provides ...
  • On some aspects of the geometry of non integrable distributions and applications 

    Muñoz Lecanda, Miguel Carlos (American Institute of Mathematical Sciences, 2018-12-01)
    Article
    Accés obert
    We consider a regular distribution D in a Riemannian manifold (M, g). The LeviCivita connection on (M, g) together with the orthogonal projection allow to endow the space of sections of D with a natural covariant derivative, ...

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