Quadratic sheaves and self-linkage

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Generalizing an old result proved by P. Rao [see MR 83i:14025] for arithmetically Cohen-Macaulay, self-linked subschemes of codimension 2 in the projective n-space P, we give a characterization of self-linked pure subschemes of codimension 2 in P satisfying a necessary parity condition, in characteristic different from 2. We make use of the theory of quadratic sheaves described in a previous paper of the authors [see MR 99h:14044].
AmS-ppt, 12 pages, no figures

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Algebraic Geometry, Commutative Algebra, 14M06; 14M07; 13C40

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http://salesiana.dossiersoluciones.com/handle/123456789/61647

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0106104
 http://arxiv.org/abs/math/0106104

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arXiv