Recent Submissions

  • Generating functions associated to Frobenius algebras 

    Álvarez Montaner, Josep (Elsevier, 2019-12-01)
    Article
    Restricted access - publisher's policy
    We introduce a generating function associated to the homogeneous gen-erators of a graded algebra that measures how far is this algebra from being finitelygenerated. For the case of some algebras of Frobenius endomorphisms ...
  • Linear systems on irregular varieties 

    Barja Yáñez, Miguel Ángel; Pardini, Rita; Stoppino, Lidia (2019-01-01)
    Article
    Open Access
  • Sufficient and necessary conditions for solution finding in valuation-based systems 

    Roca Lacostena, Jordi; Cerquides, Jesús; Pouly, Marc (2019-11-01)
    Article
    Open Access
    Valuation algebras abstract a large number of formalisms for automated reasoning and enable the definition of generic inference procedures. Many of these formalisms provide some notion of solution. Typical examples are ...
  • The Peebles–Vilenkin quintessential inflation model revisited 

    Haro Cases, Jaume; Amorós Torrent, Jaume; Pan, Supriya (springer-Verlag, 2019-06-01)
    Article
    Open Access
    We review the well-known Peebles–Vilenkin (PV) quintessential inflation model and discuss its possible improvements in agreement with the recent observations. The improved PV model depends only on two parameters: the ...
  • Multiplicities of jumping points for mixed multiplier ideals 

    Alberich Carramiñana, Maria; Álvarez Montaner, Josep; Dachs Cadefau, Ferran; González Alonso, Víctor (Springer, 2019-01-01)
    Article
    Restricted access - publisher's policy
    In this paper we make a systematic study of the multiplicity of the jumping points associated to the mixed multiplier ideals of a family of ideals in a complex surface with rational singularities. In particular we study ...
  • Xiao's conjecture for general fibred surfaces 

    Barja Yáñez, Miguel Ángel; González Alonso, Víctor; Naranjo Del val, Joan Carles (2018-06-01)
    Article
    Open Access
    We prove that the genus g, the relative irregularity qf and the Clifford index cf of a non-isotrivial fibration f satisfy the inequality qf=g-cf. This gives in particular a proof of Xiao’s conjecture for fibrations whose ...
  • Poles of the complex zeta function of a plane curve 

    Blanco Fernández, Guillem (2019-07-09)
    Article
    Open Access
  • A Koszul complex over skew polynomial rings 

    Álvarez Montaner, Josep; Boix, Alberto F.; Zarzuela Armengou, Santiago (2019-01-01)
    Article
    Restricted access - publisher's policy
    We construct a Koszul complex in the category of left skew polynomial rings associated with a flat endomorphism that provides a finite free resolution of an ideal generated by a Koszul regular sequence
  • Coupling symmetries with Poisson structures 

    Miranda Galcerán, Eva; Laurent Gengoux, Camille (Springer, 2013)
    Article
    Restricted access - publisher's policy
    We study local normal forms for completely integrable systems on Poisson manifolds in the presence of additional symmetries. The symmetries that we consider are encoded in actions of compact Lie groups. The existence of ...
  • The clay public lecture and conference on the Poincaré Conjecture, Paris, 7-9 June 2010 

    Miranda Galcerán, Eva (2010-09)
    Article
    Open Access
  • On the volume elements of a manifold with transverse zeroes 

    Miranda Galcerán, Eva; Cardona Aguilar, Robert (Springer, 2019)
    Article
    Open Access
    Moser proved in 1965 in his seminal paper [15] that two volume forms on a compact manifold can be conjugated by a diffeomorphism, that is to say they are equivalent, if and only if their associated cohomology classes in ...
  • Bouncing cosmologies via modified gravity in the ADM formalism: Application to loop quantum cosmology 

    Haro Cases, Jaume; Amorós Torrent, Jaume (American Physical Society (APS), 2018-03-15)
    Article
    Open Access
    We consider the Arnowitt-Deser-Misner formalism as a tool to build bouncing cosmologies. In this approach, the foliation of the spacetime has to be fixed in order to go beyond general relativity modifying the gravitational ...

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