Affine Quotients of Supergroups
Affine Quotients of Supergroups
复制标题
超群的仿射商
DOI:
10.1007/s00031-009-9055-z
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发表时间:
2008
影响因子:
0.7
通讯作者:
Alexandr N. Zubkov
中科院分区:
文献类型:
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作者:
Alexandr N. Zubkov
In this paper we consider sheaf quotients of affine superschemes by affine supergroups that act on them freely. The necessary and sufficient conditions for such quotients to be affine are given. IfGis an affine supergroup andHis its normal supersubgroup, then we prove that a durK-sheafis again an affine supergroup. Additionally, ifGis algebraic, then aK-sheafis also an algebraic supergroup and it coincides with. In particular, any normal supersubgroup of an affine supergroup is faithfully exact.