Homoclinic Orbits and Localized Solutions in Discrete Nonlinear Schrodinger Equation with Long-Range Interaction

نویسندگان

1 Department of Mathematics and Informatic, Abdelhafidh Boussouf University Center of Mila, Mila, Algeria

2 Department of Mathematics and Informatic, Abdelhafidh Boussouf University Center of Mila, Mila, Algeria

3 Department of Mathematics and Informatics, Faculty of Exact Sciences, Natural and Life Sciences, El Arbi Tebessi University, Tebessa, Algeria.

doi
10.22075/ijnaa.2021.23619.2588
چکیده

In this paper, we use the homoclinic orbit approach without using small perturbations to prove the existence of soliton solutions of the discrete nonlinear Schrödinger equations with long-range interaction by employing the properties of the symmetries of reversible planar maps. Moreover, the long-range interaction by a potential proportional to $1/l^{1+\alpha} $ with fractional $\alpha < 1 $ and $l $ as natural number.