For citations:

Khalkhuzhaev A.M., Khujamiyorov I.A. On the discrete spectrum of the Schrödinger operator using the 2+1 fermionic trimer on the lattice. Nanosystems: Physics, Chemistry, Mathematics. 2023;14(5):518-529. https://doi.org/10.17586/2220-8054-2023-14-5-518-529