Maximal abelian subgroups of compact simple Lie groups
arXiv:1211.1334
Abstract
We classify abelian subgroups of the automorphism group of any compact simple Lie algebra whose centralizer has the same dimension as the dimension of the subgroup. This leads to a classification of the maximal abelian subgroups of compact simple groups of adjoint type and a classification of the fine group gradings of complex simple Lie algebras.
Replaced by arXiv:1403.2680