%0 Journal Article %T Enumeration of ad-nilpotent ideals of parabolic subalgebras for exceptional types %A Celine Righi %J Mathematics %D 2008 %I arXiv %X Using GAP4, we determine the number of ad-nilpotent and abelian ideals of a parabolic subalgebra of a simple Lie algebra of exceptional types E, F or G. %U http://arxiv.org/abs/0804.2404v1