%0 Journal Article %A Meera G. Mainkar %T Graphs and two-step nilpotent Lie algebras %J Groups, geometry, and dynamics %D 2015 %P 55-65 %V 9 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4171/ggd/305/ %R 10.4171/ggd/305 %F 10_4171_ggd_305