TY - JOUR AU - M. M. Graev TI - The number of invariant Einstein metrics on a homogeneous space, Newton polytopes and contractions of Lie algebras JO - Izvestiya. Mathematics PY - 2007 SP - 247 EP - 306 VL - 71 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM2_2007_71_2_a1/ LA - en ID - IM2_2007_71_2_a1 ER -