Generically transitive actions on multiple flag varieties
arXiv:1007.1353 · doi:10.1093/imrn/rnt019
Abstract
Let be a semisimple algebraic group whose decomposition into a product of simple components does not contain simple groups of type , and be a parabolic subgroup. Extending the results of Popov [7], we enumerate all triples such that (a) there exists an open -orbit on the multiple flag variety ( factors), (b) the number of -orbits on the multiple flag variety is finite.
10 pages