An example of orthogonal triple flag variety of finite type, J. of Algebra
An example of orthogonal triple flag variety of finite type, J. of Algebra
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有限类型正交三重旗簇的一个例子,J. of Algebra
DOI:
10.1016/j.jalgebra.2012.11.012
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发表时间:
2013
期刊:
影响因子:
--
通讯作者:
Toshihiko Matsuki
中科院分区:
文献类型:
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作者:
K.Kimura;S.Kimura;N.Takahashi;K. Kimura;K.Kimura;木村健一郎;木村健一郎;木村健一郎;木村健一郎;木村健一郎;木村健一郎;K. Kimura;K.Kimura;Toshihiko Matsuki
Let G be the split special orthogonal group of degree 2n+1 over a field F of charF≠2. Then we describe G-orbits on the triple flag varieties G/P×G/P×G/P and G/P×G/P×G/B with respect to the diagonal action of G where P is a maximal parabolic subgroup of G of the shape (n,1,n) and B is a Borel subgroup. As by-products, we also describe GLn-orbits on G/B, Q2n-orbits on the full flag variety of GL2nwhere Q2nis the fixed-point subgroup in Sp2nof a nonzero vector in F2nand 1×Sp2n-orbits on the full flag variety of GL2n+1. In the same way, we can also solve the same problem for SO2nwhere the maximal parabolic subgroup P is of the shape (n,n).