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math.SP2022
On the spectrum of Schrödinger-type operators on two dimensional lattices
Shokhrukh Yu. Kholmatov, Saidakhmat N. Lakaev, Firdavsjon M. Almuratov
We consider a family of Schrödinger-type operators on the two dimensional lattice where $\wideha…
math.SP2019
Expansion of eigenvalues of rank-one perturbations of the discrete bilaplacian
Ahmad Khalkhuzhaev, Shokhrukh Yu. Kholmatov, Mardon Pardabaev
We consider the family of discrete Schrödinger-type operators in -dimensional lattice , where…
math.SP2019
Asymptotics of eigenvalues of the zero-range perturbation of the discrete bilaplacian
Shokhrukh Yu. Kholmatov, Mardon Pardabaev
We consider the family of discrete Schrödinger-type operators in one-dimensional lattice $\m…