TY - JOUR AU - Cuiling Luo AU - Xiaoping Xu TI - Graded Oscillator Generalizations of the Classical Theorem on Harmonic Polynomials JO - Journal of Lie Theory PY - 2013 SP - 979 EP - 1003 VL - 23 IS - 4 UR - http://geodesic.mathdoc.fr/item/JOLT_2013_23_4_a4/ ID - JOLT_2013_23_4_a4 ER -