A novel general nonlocal reverse-time nonlinear Schrödinger equation and its soliton solutions by Riemann–Hilbert method

J Wu - Nonlinear Dynamics, 2023 - Springer
In this paper, a novel general nonlocal reverse-time nonlinear Schrödinger (NLS) equation
involving two real parameters is proposed from a general coupled NLS system by imposing …

Spectral structures and soliton dynamical behaviors of two shifted nonlocal NLS equations via a novel Riemann–Hilbert approach: A reverse-time NLS equation and a …

J Wu - Chaos, Solitons & Fractals, 2024 - Elsevier
By extending the traditional Riemann–Hilbert (RH) approach of soliton equations to a novel
version, this paper is devoted to studying two shifted nonlocal NLS equations: a reverse-time …

Nonlinear waves and the inverse scattering transform

MJ Ablowitz - Optik, 2023 - Elsevier
Solitons are a class of nonlinear stable, localized waves. They arise widely in physical
problems; applications include water waves, plasma physics, Bose–Einstein condensation …

A new physically meaningful general nonlocal reverse-space nonlinear Schrödinger equation and its novel Riemann–Hilbert method via temporal-part spectral …

J Wu - Nonlinear Dynamics, 2024 - Springer
By imposing a nonlocal reverse-space symmetry constraint on a general coupled nonlinear
Schrödinger (NLS) equation, we propose a new general nonlocal reverse-space NLS …

Riemann–Hilbert approach to the focusing and defocusing nonlocal derivative nonlinear Schrödinger equation with step-like initial data

B Hu, Z Shen, L Zhang, F Fang - Applied Mathematics Letters, 2024 - Elsevier
In this paper, we consider the Cauchy problem for the integrable nonlocal derivative
nonlinear Schrödinger (DNLS) equation with step-like initial data. The main aim is to obtain …

Inverse scattering transform for the nonlocal Gerdjikov–Ivanov equation with simple and double poles

G Wang, XB Wang, B Han - Nonlinear Dynamics, 2024 - Springer
We systematically investigate the nonlocal Gerdjikov-Ivanov (nGI) equation with non-
vanishing boundary conditions by means of the inverse scattering transform method. We …

PT-symmetric PINN for integrable nonlocal equations: Forward and inverse problems

WQ Peng, Y Chen - Chaos: An Interdisciplinary Journal of Nonlinear …, 2024 - pubs.aip.org
Since the P T-symmetric nonlocal equations contain the physical information of the P T-
symmetric, it is very appropriate to embed the physical information of the P T-symmetric into …

Revised Riemann–Hilbert problem for the derivative nonlinear Schrödinger equation: Vanishing boundary condition

Y Zhang, H Wu, D Qiu - Theoretical and Mathematical Physics, 2023 - Springer
With a vanishing boundary condition, we consider a revised Riemann–Hilbert problem
(RHP) for the derivative nonlinear Schrödinger equation (DNLS), where an integral factor is …

Integrable reductions of the multi-component Kaup–Newell equations

R Zhou, Z Yu - Physica D: Nonlinear Phenomena, 2024 - Elsevier
We investigate the local and nonlocal integrable reductions of the multi-component Kaup–
Newell equations and derive a range of novel integrable derivative nonlinear Schrödinger …

Spectral structure and even-order soliton solutions of a defocusing shifted nonlocal NLS equation via Riemann-Hilbert approach

J Wu - Nonlinear Dynamics, 2024 - Springer
Abstract Utilizing the Riemann-Hilbert (RH) approach, we shed light on the spectral structure
of a defocusing shifted nonlocal NLS equation with a space-shifted parameter from which …