Borel subgroups adapted to nilpotent elements of standard Levi type
Borel subgroups adapted to nilpotent elements of standard Levi type
Let a reductive algebraic group over an algebraically closed field of good characteristic be given. Attached to a nilpotent element of its Lie algebra, we consider a family of algebraic varieties, which incorporates classical objects such as Springer fiber, Spaltenstein varieties, and Hessenberg varieties. When the nilpotent element is of …