%0 Journal Article %A S. M. Tashpulatov %T Structure of the essential spectrum and the discrete spectrum of the energy operator of six-electron systems in the Hubbard model. Fourth triplet state %J Itogi nauki i tehniki. Sovremennaâ matematika i eë priloženiâ. Tematičeskie obzory %D 2024 %P 31-48 %V 236 %I mathdoc %U http://geodesic.mathdoc.fr/item/INTO_2024_236_a3/ %G ru %F INTO_2024_236_a3