On the orbit space of a three-dimensional compact linear Lie group
arXiv:1411.7963 · doi:10.1070/IM2011v075n04ABEH002553
Abstract
We study the question of whether the topological quotient of a real linear representation of a simple three-dimensional compact Lie group is a manifold. We obtain an upper bound for the dimension of a representation whose quotient is a manifold, and examine most of the remaining cases.
in Russian