@article{TIMM_2023_29_3_a12, author = {S. M. Tashpulatov}, title = {The {Structure} of the {Essential} {Spectrum} and the {Discrete} {Spectrum} of the {Energy} {Operator} for {Six-Electron} {Systems} in the {Hubbard} {Model.} {The} {Second} {Singlet} {State}}, journal = {Trudy Instituta matematiki i mehaniki}, pages = {210--230}, year = {2023}, volume = {29}, number = {3}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TIMM_2023_29_3_a12/} }