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arXiv:1003.2358 [math.AG]AbstractReferencesReviewsResources

Flag varieties as equivariant compactifications of G_a^n

Ivan V. Arzhantsev

Published 2010-03-11, updated 2010-03-18Version 2

Let G be a semisimple affine algebraic group and P a parabolic subgroup of G. We classify all flag varieties G/P which admit an action of the commutative unipotent group G_a^n with an open orbit.

Comments: 4 pages, small corrections
Journal: Proc. Amer. Math. Soc. 139 (2011), no. 3, 783-786
Categories: math.AG
Subjects: 14M15, 14L30
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