Automorphisms, root systems, and compactifications of homogeneous varieties
Automorphisms, root systems, and compactifications of homogeneous varieties
Let G be a complex semisimple group and let H C G be the group of fixed points of an involutive automorphism of G. Then X = G/H is called a symmetric variety. In [CP], De Concini and Procesi have constructed an equivariant compactification X which has a number of …