The Structure of Integral Parabolic Subgroups of Orthogonal Groups
arXiv:1902.08264 · doi:10.1016/j.jalgebra.2020.03.030
Abstract
We determine the detailed structure of parabolic subgroups of orthogonal groups over , and deduce the precise form of canonical boundary components in toroidal compactifications of orthogonal Shimura varieties.
32 pages, improved exposition with additional references