论文标题
双支绳的双杆菌
Biliaison of sheaves
论文作者
论文摘要
我们在一个称为Biliaison的投影品种上定义了相干滑轮之间的等效关系。我们证明,在适当的意义上,在双膜层中最小的滑轮存在,并证明可以使用某些变形和其他基本移动从最小的一层中获得同一类中的所有滑轮。我们的结果将联络理论的主要定理推广到滑轮,并提供了同时研究带束和亚Varieties的框架。
We define an equivalence relation among coherent sheaves on a projective variety called biliaison. We prove the existence of sheaves that are minimal in a biliaison class in a suitable sense, and show that all sheaves in the same class can be obtained from a minimal one using certain deformations and other basic moves. Our results generalize the main theorems of liaison theory of subvarieties to sheaves, and provide a framework to study sheaves and subvarieties simultaneously.