32 citations · 89 across the 21 of their papers we have counts for
4 papers · 1 filter
Anti-affine algebraic groups
Michel Brion
We say that an algebraic group over a field is anti-affine if every regular function on is constant. We obtain a classification of these groups, with applications to the st…
Local structure of algebraic monoids
Michel Brion
We describe the local structure of an irreducible algebraic monoid at an idempotent element . When is minimal, we show that is an induced variety over the kernel $Me…
Equivariant Chow ring and Chern classes of wonderful symmetric varieties of minimal rank
Michel Brion, Roy Joshua
We describe the equivariant Chow ring of the wonderful compactification of a symmetric space of minimal rank, via restriction to the associated toric variety . Also, we show…
Some basic results on actions of non-affine algebraic groups
Michel Brion
We study actions of connected algebraic groups on normal algebraic varieties, and show how to reduce them to actions of affine subgroups.