| Résume | If $E$ is an elliptic curve over the rational numbers then one may construct classes in the cohomology of the $p$-adic Tate module $T_p(E)$ by taking the Kummer images of Heegner points. I will describe the construction of a family of Big Heegner points which lift these classes from the cohomology of $T_p(E)$ to the cohomology of Hida's universal ordinary deformation. I will then discuss results and conjectures concerning the nonvanishing of these classes, and applications to Greenberg's conjecture on the generic ranks of Selmer groups in Hida families. |
