Recent Submissions

  • Nonuniform Fuchsian codes for noisy channels 

    Blanco Chacón, Iván; Remón Adell, Dionís; Hollanti, Camilla; Alsina Aubach, Montserrat (2014-11-01)
    Article
    Open Access
    We develop a new transmission scheme for additive white Gaussian noisy (AWGN) channels based on Fuchsian groups from rational quaternion algebras. The structure of the proposed Fuchsian codes is nonlinear and nonuniform, ...
  • Improving communication skills: students' viewpoint on a content & language integrated learning project 

    Alsina Aubach, Montserrat; Fortuny Santos, Jordi; Lao Luque, Concepción; Heras Cisa, F. Xavier de las (2014)
    Conference lecture
    Open Access
    The development of the European Higher Education Area (EHEA) scheme in Spanish universities implies a greater participation of the students in their own process of learning and competence-based teaching. Competences are ...
  • An optimal application of symbols 

    Alsina Aubach, Montserrat (International Association of Technology, Education and Development (IATED), 2013)
    Conference report
    Open Access
    In this paper, an optimal application of symbols is described, in the context of European Higher Education Area (EHEA) for engineering degrees. Handling mathematical symbols and foreign language are common competences, and ...
  • The automorphism group of the non-split Cartan modular curve of level 11 

    Dose, Valerio; Fernández González, Julio; González Rovira, Josep; Schoof, Rene (2014-11-01)
    Article
    Restricted access - publisher's policy
    We derive equations for the modular curve X-ns(11) associated to a non-split Cartan subgroup of GL(2)(F-11). This allows us to compute the automorphism group of the curve and show that it is isomorphic to Klein's four ...
  • Class talk: recurs en línia per a l'ensenyament d'assignatures en anglès 

    Fortuny Santos, Jordi; Alsina Aubach, Montserrat (2012)
    Conference lecture
    Open Access
  • On the nonexistence of almost Moore digraphs 

    Conde Colom, Josep; Gimbert Quintilla, Joan; González Rovira, Josep; Miller, Mirka; Miret Biosca, Josep Maria (2014-07-01)
    Article
    Restricted access - publisher's policy
    Digraphs of maximum out-degree at most d > 1, diameter at most k > 1 and order N(d, k) = d + ... + d(k) are called almost Moore or (d, k)-digraphs. So far, the problem of their existence has been solved only when d = 2, 3 ...
  • The Frobenius traces distribution for modular Abelian surfaces 

    González Rovira, Josep (2014-02)
    Article
    Restricted access - publisher's policy
    We prove that there exist at least 15 pairs of measures for which the two normalized Frobenius traces on modular Abelian surfaces are equidistributed. Under an assumption about stochastic independence, we prove that there ...
  • Modular abelian varieties over number fields 

    Guitart Morales, Xavier; Quer Bosor, Jordi (2014)
    Article
    Restricted access - publisher's policy
    The main result of this paper is a characterization of the abelian varieties B=K defined over Galois number fields with the property that the L-function L(B=K; s) is a product of L-functions of non-CM newforms over Q for ...
  • La funció Z de Riemann 

    Quer Bosor, Jordi (2014-01-31)
    Other
    Open Access
    El novembre de 1859 Riemann envià un manuscrit de sis fulls a l’Acadèmia de Berlín titulat Sobre el nombre de primers menors que una quantitat donada, el qual seria l’única publicació dedicada a la teoria de nombres de ...
  • Cropping Euler factors of modular L-functions 

    González Rovira, Josep; Jiménez Urroz, Jorge; Lario Loyo, Joan Carles (2013-09)
    Article
    Open Access
    According to the Birch and Swinnerton-Dyer conjectures, if A/Q is an abelian variety, then its L-function must capture a substantial part of the properties of A. The smallest number field L where A has all its endomorphisms ...

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