The versal deformation of an isolated toric Gorenstein singularity

被引：42
|
作者：
Altmann, K
机构：
[1] Institut für Reine Mathematik, Humboldt-Universität zu Berlin, D-10099 Berlin
来源：
INVENTIONES MATHEMATICAE | 1997年 / 128卷 / 03期
关键词：
D O I：
10.1007/s002220050148
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
Given a lattice polytope Q subset of or equal to R-n, we define an affine scheme (M) over bar that reflects the possibilities of splitting Q into a Minkowski sum, Denoting by Y the toric Gorenstein singularity induced by Q, we construct a flat family over (M) over bar with Y as special fiber. In case Y has an isolated singularity, this family is versal.
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页码：443 / 479
页数：37
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