TY - BOOK AU - Hilgert Joachim AU - Lawson Jimmie D AU - Neeb Karl-Hermann AU - Vinberg Ernest B TI - Positivity in lie theory: open problems SN - 3-11-016112-5 U1 - 512.55 PY - 1998/// CY - Berlin PB - Walter de Gruyter KW - Lie groups ER -