Results 121 to 130 of about 746,627 (265)

A Nonlinear Schrödinger Equation Resonating at an Essential Spectrum

open access: yesAdvances in Mathematical Physics, 2016
We consider the nonlinear Schrödinger equation -Δu+f(u)=V(x)u  in  RN. The potential function V satisfies that the essential spectrum of the Schrödinger operator -Δ-V is [0,+∞) and this Schrödinger operator has infinitely many negative eigenvalues ...
Shaowei Chen, Haijun Zhou
doaj   +1 more source

Neural networks for computing and denoising the continuous nonlinear Fourier spectrum in focusing nonlinear Schrödinger equation. [PDF]

open access: yesSci Rep, 2021
Sedov EV   +7 more
europepmc   +1 more source

Localized states near the interface with an internal structure between nonlinear attractive and repulsive media

open access: yesJournal of Applied Surfaces and Interfaces, 2018
We consider the nonlinear excitation localized near the media interface with an internal structure. We consider the anharmonicity of the medium characterized by a different nonlinearity on different sides of the interface. The excitations are described
Sergey E. Savotchenko
doaj  

Nonlinear Schrödinger type tetrahedron maps

open access: yesNuclear Physics B, 2020
This paper is concerned with the construction of new solutions in terms of birational maps to the functional tetrahedron equation and parametric tetrahedron equation.
S. Konstantinou-Rizos
doaj  

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