• On fields of definition of torsion points of elliptic curves with complex multiplication 

      Dieulefait, Luis Victor; Gonzalez Jimenez, Enrique; Jiménez Urroz, Jorge (2011-06)
      Article
      Accés obert
      For any elliptic curve E defined over the rationals with complex multiplication (CM) and for every prime p, we describe the image of the mod p Galois representation attached to E. We deduce information about the field of ...
    • On the modularity level of modular abelian varieties over number fields 

      Gonzalez Jimenez, Enrique; Guitart Morales, Xavier (2010-07)
      Article
      Accés obert
      Let f be a weight two newform for Γ1(N) without complex multiplication. In this article we study the conductor of the absolutely simple factors B of the variety A f over certain number fields L. The strategy we follow ...