Finite flat group schemes over local Artin rings

被引:1
|
作者
Schoof, R [1 ]
机构
[1] Univ Roma Tor Vergata, Dipartimento Matemat, I-00133 Rome, Italy
关键词
group scheme; Hopf algebra; deformations;
D O I
10.1023/A:1017560215203
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Let R be a local Artin ring with maximal ideal m and residue class field of characteristic p > 0. We show that every finite flat group scheme over R is annihilated by its rank, whenever m(p) = pm = 0. This implies that any finite flat group scheme over an Artin ring the square of whose maximal ideal is zero, is annihilated by its rank.
引用
收藏
页码:1 / 15
页数:15
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