On elliptic units and p-adic Galois representations attached to elliptic curves |
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Authors: | Álvaro Lozano-Robledo |
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Institution: | Colby College, Department of Mathematics, 8800 Mayflower Hill, Waterville, ME 04901, USA |
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Abstract: | Let K be a quadratic imaginary number field with discriminant DK≠-3,-4 and class number one. Fix a prime p?7 which is not ramified in K and write hp for the class number of the ray class field of K of conductor p. Given an elliptic curve A/K with complex multiplication by K, let be the representation which arises from the action of Galois on the Tate module. Herein it is shown that if then the image of a certain deformation of is “as big as possible”, that is, it is the full inverse image of a Cartan subgroup of SL(2,Zp). The proof rests on the theory of Siegel functions and elliptic units as developed by Kubert, Lang and Robert. |
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Keywords: | 11F80 (primary) 11G05 11G16 (secondary) |
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