Transitive isometry groups with non-compact isotropy
Let G be a connected Lie group acting effectively and transitively by isometries on a riemannian manifold M. Then G is a Lie subgroup of the full isometry group, which is not necessarily closed. In this paper we study the structure of the closure of G in I(M) and illustrate the results with examples, with non-compact isotropy, where the closure is described explicitly.
connected Lie group acting effectively and transitively by isometries on a riemannian manifold
scientific article; zbMATH DE number 4078286