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math.NT2009
Ribet bimodules and the specialization of Heegner points
Santiago Molina
We describe the specialization of Heegner points on Shimura curves at primes of bad reduction. Moreover, we give some reciprocity laws relating the Galois action on these points to…
math.NT2009
Parametrization of abelian -surfaces with quaternionic multiplication
Xavier Guitart, Santiago Molina
We prove that the abelian -surfaces whose endomorphism algebra is a quaternion algebra are parametrized, up to isogeny, by the -rational points of the quotient of certain Shi…