High-resolution environmental record of banded iron formations through rock magnet...
| Full text | |
| Author(s): |
Zubkov, A. N.
[1]
Total Authors: 1
|
| Affiliation: | [1] Omsk State Pedag Univ, Dept Math, Omsk 644099 - Russia
Total Affiliations: 1
|
| Document type: | Journal article |
| Source: | TRANSFORMATION GROUPS; v. 14, n. 3, p. 713-745, SEP 2009. |
| Web of Science Citations: | 16 |
| Abstract | |
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. If G is an affine supergroup and H is its normal supersubgroup, then we prove that a dur K-sheaf G/(sic)H is again an affine supergroup. Additionally, if G is algebraic, then a K-sheaf G/(sic)H is also an algebraic supergroup and it coincides with G/(sic)H. In particular, any normal supersubgroup of an affine supergroup is faithfully exact. (AU) | |