Now showing items 1-8 of 8

  • Axiomàtica dels nombres reals 

    Aranda May, Montserrat (Universitat Politècnica de Catalunya, 2013-06)
    Bachelor thesis
    Open Access
    L'objectiu d'aquest treball és estudiar les propietats del conjunt de nombres reals, començant per una construcció d'aquest conjunt a través de classes d'equivalència de successions de Cauchy. Posteriorment, es prendrà ...
  • Grupos de Galois lineales provenientes de la geometría 

    Dieulefait, Luís V. (2013-03-06)
    Audiovisual
    Open Access
  • Hopf Galois structures on symmetric and alternating extensions 

    Río Doval, Ana; Vela del Olmo, Maria Montserrat; Crespo Vicente, Teresa (2018)
    Article
    Open Access
    By using a recent theorem by Koch, Kohl, Truman and Underwood on normality, we determine that some types of Hopf Galois structures do not occur on Galois extensions with Galois group isomorphic to alternating or symmetric ...
  • Induced Hopf Galois structures 

    Crespo Vicente, Teresa; Río Doval, Ana; Vela del Olmo, Maria Montserrat (2016-07-01)
    Article
    Open Access
    For a ¿nite Galois extension K/k and an intermediate ¿eld F such that Gal(K/F)has a normal complement in Gal(K/k), we construct and characterize Hopf Galois structures on K/k which are induced by a pair of Hopf Galois ...
  • Lectura de la memòria sobre la resolubilitat de les equacions per radicals 

    Pla i Carrera, Josep (2013-03-06)
    Audiovisual
    Open Access
  • Non-isomorphic Hopf Galois structures with isomorphic underlying Hopf algebras 

    Crespo, Teresa; Río Doval, Ana; Vela del Olmo, Maria Montserrat (2014-10-30)
    Article
    Restricted access - publisher's policy
    We give a degree 8 non-normal separable extension having two non-isomorphic Hopf Galois structures with isomorphic underlying Hopf algebras.
  • El Problema invers de la teoria de Galois 

    Plans Berenguer, Bernat (2013-03-06)
    Audiovisual
    Open Access
  • Revisiting Kneser’s theorem for field extensions 

    Bachoc, Christine; Serra Albó, Oriol; Zemor, Gilles (2017-05-31)
    Article
    Open Access
    A Theorem of Hou, Leung and Xiang generalised Kneser’s addition Theorem to field extensions. This theorem was known to be valid only in separable extensions, and it was a conjecture of Hou that it should be valid for all ...