TY - JOUR AU - E. M. Novikova TI - New Approach to the Procedure of Quantum Averaging for the Hamiltonian of a Resonance Harmonic Oscillator with Polynomial Perturbation for the Example of the Spectral Problem for the Cylindrical Penning Trap JO - Matematičeskie zametki PY - 2021 SP - 747 EP - 767 VL - 109 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_2021_109_5_a7/ LA - ru ID - MZM_2021_109_5_a7 ER -