TY - JOUR AU - S. M. Tashpulatov TI - Structure of the essential spectrum and the discrete spectrum of the energy operator of six-electron systems in the Hubbard model. Fourth triplet state JO - Itogi nauki i tehniki. Sovremennaâ matematika i eë priloženiâ. Tematičeskie obzory PY - 2024 SP - 31 EP - 48 VL - 236 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/INTO_2024_236_a3/ LA - ru ID - INTO_2024_236_a3 ER -