ACM sheaves of pure rank two on reducible hyperquadrics
Algebraic Geometry
2017-07-28 v3 Commutative Algebra
Representation Theory
Abstract
We classify a special type of arithmetically Cohen-Macaulay sheaves of rank two on reducible and reduced quadric hypersurfaces. As a consequence we show that a reducible and reduced quadric surface is of wild type.
Cite
@article{arxiv.1508.01632,
title = {ACM sheaves of pure rank two on reducible hyperquadrics},
author = {Edoardo Ballico and Sukmoon Huh and Joan Pons-Llopis},
journal= {arXiv preprint arXiv:1508.01632},
year = {2017}
}
Comments
16 pages; Many changes; Comments welcome