On the anticyclotomic Iwasawa theory of rational elliptic curves at Eisenstein primes
arXiv:2008.02571
Abstract
Let be an elliptic curve, and a prime where has good reduction, and assume that admits a rational -isogeny. In this paper, we study the anticyclotomic Iwasawa theory of over an imaginary quadratic field in which splits, which we relate to the anticyclotomic Iwasawa theory of characters following the method of Greenberg--Vatsal. As a result of our study, we obtain a proof, under mild hypotheses, of Perrin-Riou's Heegner point main conjecture, as well as a -converse to the theorem of Gross--Zagier and Kolyvagin and the -part of the Birch--Swinnerton-Dyer formula in analytic rank for Eisenstein primes .
Final version, to appear in Invent. Math