A cohomological splitting criterion for locally free sheaves on arithmetically Cohen-Macaulay surfaces

作者:Halic Mihai*; Tajarod Roshan
来源:Mathematical Proceedings of the Cambridge Philosophical Society, 2013, 155(3): 517-527.
DOI:10.1017/S0305004113000406

摘要

In this paper we obtain a cohomological splitting criterion for locally free sheaves on arithmetically Cohen-Macaulay surfaces with cyclic Picard group, which is similar to Horrocks%26apos; splitting criterion for locally free sheaves on projective spaces. We also recover a duality property which identifies a general K 3 surface with a certain moduli space of stable sheaves on it, and obtain examples of stable, arithmetically Cohen-Macaulay, locally free sheaves of rank two on general surfaces of degree at least five in P-3.

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