科研之友
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摘要
We study the action of an anti-holomorphic involution sigma of a connected reductive complex algebraic group G on the set of spherical subgroups of G. The results are applied to sigma-equivariant real structures on spherical homogeneous G-spaces admitting a wonderful embedding. Using combinatorial invariants of these varieties, we give an existence and uniqueness criterion for such real structures. We also investigate the associated real parts of the wonderful varieties.
- 出版日期2015-12
