On the 2-part of the Birch-Swinnerton-Dyer conjecture for elliptic curves with complex multiplication
Given an elliptic curve E over Q with complex multiplication having good reduction at 2, we investigate the 2-adic valuation of the algebraic part of the L-value at 1 for a family of quadratic twists. In particular, we prove a lower bound for this valuation in terms of the Tamagawa number in a form...
| Main Authors: | , , , |
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| Format: | Journal article |
| Published: |
Mathematical Institutes of the Universität Münster
2014
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