On the Birch-Swinnerton-Dyer quotients modulo squares
On the Birch-Swinnerton-Dyer quotients modulo squares
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关于 Birch-Swinnerton-Dyer 商模平方
DOI:
10.4007/annals.2010.172.567
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发表时间:
2006
影响因子:
4.9
通讯作者:
V. Dokchitser
中科院分区:
文献类型:
--
作者:
T. Dokchitser;V. Dokchitser
Let A be an abelian variety over a number field K. An identity between the L-functions L(A/K i , s) for extensions K i of K induces a conjectural relation between the Birch-Swinnerton-Dyer quotients. We prove these relations modulo finiteness of LII, and give an analogous statement for Selmer groups. Based on this, we develop a method for determining the parity of various combinations of ranks of A over extensions of K. As one of the applications, we establish the parity conjecture for elliptic curves assuming finiteness of III(E/K(E[2]))[6 ∞ ] and some restrictions on the reduction at primes above 2 and 3: the parity of the Mordell-Weil rank of E/K agrees with the parity of the analytic rank, as determined by the root number. We also prove the p-parity conjecture for all elliptic curves over Q and all primes p: the parities of the p ∞ -Selmer rank and the analytic rank agree.