Selmer Groups of Elliptic Curves with Complex Multiplication

Saikia, A.

Canadian journal of mathematics, Tome 56 (2004) no. 1, pp. 194-208

Résumé

Suppose $K$ is an imaginary quadratic field and $E$ is an elliptic curve over a number field $F$ with complex multiplication by the ring of integers in $K$ . Let $p$ be a rational prime that splits as ${{\mathfrak{p}}_{1}}{{\mathfrak{p}}_{2}}$ in $K$ . Let ${{E}_{{{p}^{n}}}}$ denote the ${{p}^{n}}$ -division points on $E$ . Assume that $F\left( {{E}_{{{p}^{n}}}} \right)$ is abelian over $K\,\text{for}\,\text{all}\,n\,\ge \,0$ . This paper proves that the Pontrjagin dual of the $\mathfrak{p}_{1}^{\infty }$ -Selmer group of $E$ over $F\left( {{E}_{{{p}^{\infty }}}} \right)$ is a finitely generated free $\wedge $ -module, where $\wedge $ is the Iwasawa algebra of $\text{Gal}\left( F\left( {{E}_{{{p}^{\infty }}}} \right)/F\left( E\mathfrak{p}_{1}^{\infty }{{\mathfrak{p}}_{2}} \right) \right)$ . It also gives a simple formula for the rank of the Pontrjagin dual as a $\wedge $ -module.

Détail

DOI : 10.4153/CJM-2004-009-7

Mots-clés : 11R23, 11G05

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