Ma'lumot

ON THE EXISTENCE OF EIGENVALUES OF THE DISCRETE SCHRÖDINGER OPERATOR

I.U. Alladustova


We study the discrete Schrödinger operators
associated to a system of two fermions with an indefinite sign interaction potential with energy
on the nearest neighbooring sites on the one-dimensional lattice
. We obtain the conditions on the parameter for the operator to have zero or one eigenvalue below the essential spectrum.



https://doi.org/10.59251/2181-1296.v5.1351.1123

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