Irregular elliptic surfaces of degree 12 in the projective fourspace

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So far only a few families of smooth irregular surfaces are known to exist in P^4 up to pullbacks by suitable finite morphisms from P^4 onto P^4 itself. In this paper we present two different constructions of irregular smooth minimal elliptic surfaces of degree 12 in P^4. The first is a monad construction while the other uses liaison. The family constructed via liaison includes the surfaces of the first family as a special case.
16 pages

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Algebraic Geometry, 14J27

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http://salesiana.dossiersoluciones.com/handle/123456789/65371

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0210317
 http://arxiv.org/abs/math/0210317

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arXiv