Universal log structures on semi-stable varieties
Universal log structures on semi-stable varieties
复制标题
半稳定品种的通用原木结构
DOI:
10.2748/tmj/1113247481
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发表时间:
2003
影响因子:
0.5
通讯作者:
Martin Olsson
中科院分区:
文献类型:
--
作者:
Martin Olsson
Fix a morphism of schemes f : X → S which is flat, proper, and “fiber-by-fiber semi-stable”. Let IV LS be the functor on the category of log schemes over S which to any T associates the isomorphism classes of pairs (MX , f), where MX is a log structure on X×S T and f : pr∗ 2MT →MX is a morphism of log structures making (X×S T ,MX)→ T a log smooth, integral, and vertical morphism. The main result of this paper is that IV LS is representable by a log scheme. In the course of the proof we also generalize results of F. Kato on the existence of log structures of embedding and semi-stable type.