The minimal degeneration singularities in the affine Grassmannians
Algebraic Geometry
2007-05-23 v1 Representation Theory
Abstract
The minimal degeneration singularities in the affine Grassmannians of simple simply-laced algebraic groups are determined to be either Kleinian singularities of type A, or closures of minimal orbits in nilpotent cones. The singularities for non-simply-laced types are studied by intersection cohomology and equivariant Chow group methods.
Keywords
Cite
@article{arxiv.math/0305095,
title = {The minimal degeneration singularities in the affine Grassmannians},
author = {Anton Malkin and Viktor Ostrik and Maxim Vybornov},
journal= {arXiv preprint arXiv:math/0305095},
year = {2007}
}
Comments
12 pages, latex