For citations:

Lakaev S.N., Akhmadova M.O., Akhmatova Sh.B. A complete geometric classification of spectral configurations for two-particle Schrödinger operators on Z with a rank-three interaction. Nanosystems: Physics, Chemistry, Mathematics. 2026;17(4):401-414. https://doi.org/10.17586/2220-8054-2026-17-4-401-414