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A Counter-Example to the Equivariance Structure on Semi-universal Deformation
The Journal of Geometric Analysis ( IF 1.1 ) Pub Date : 2020-04-23 , DOI: 10.1007/s12220-020-00411-4
An Khuong Doan

If X is a projective variety and G is an algebraic group acting algebraically on X, we provide a counter-example to the existence of a G-equivariant extension on the formal semi-universal deformation of X.



中文翻译:

半普遍形变形的等方差结构的反例

如果X是一个射影变体,而G是一个代数作用于X的代数群,则我们提供一个反例,说明X的形式半普遍变形上G等价扩展的存在。

更新日期:2020-04-23
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