Nanosystems: physics, chemistry, mathematics
June 2022, Volume 13, Issue 3, pp 233-351

M.I. Muminov, A.M. Khurramov, I.N. Bozorov
Conditions for the existence of bound states of a two-particle Hamiltonian on a three-dimensional lattice 237

I.V. Blinova, A.I. Popov, A.A. Bosova
Spectral gaps for star-like quantum graph and for two coupled rings 245

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