An interesting elliptic surface over an elliptic curve

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We study the elliptic modular surface attached to the commutator subgroup of the modular group. This has an elliptic curve as base and only one singular fibre. We employ an algebraic approach and then consider some arithmetic questions.
12 pages; dedicated to Michel Raynaud; v2: added Prop. 5 and Section 7

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Algebraic Geometry, Number Theory, 14G35, 14J27

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http://salesiana.dossiersoluciones.com/handle/123456789/123319

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0611103
 http://arxiv.org/abs/math/0611103

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arXiv