When are radicals of Lie groups lattice-hereditary?
arXiv:1501.04216
Abstract
This note aims to clarify what conditions on a connected Lie group G imply that its maximal connected normal solvable subgroup R intersects each lattice of G as a lattice in R.
13 pages; v2 adds referee's revisions (rewrite p. 4 footnote 2, update example 3.2 to be connected (to match source))