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We prove that the $N$-solitons, including breathers and multi-hump solitons, of the coupled nonlinear Schr\"odinger (CNLS) equations are nonlinearly stable in the Sobolev space $H^{N}$. Moreover, $(N_{1},N_{2})$-solitons of the coupled…

Exactly Solvable and Integrable Systems · Physics 2025-10-15 Liming Ling , Huajie Su

An explicit solution formula for the matrix modified KdV equation is presented, which comprises the solutions given in Ref. 7 (S. Carillo, M. Lo Schiavo, and C. Schiebold. Matrix solitons solutions of the modified Korteweg-de Vries…

Exactly Solvable and Integrable Systems · Physics 2023-05-01 Sandra Carillo , Cornelia Schiebold

We study the real-valued modified KdV equation on the real line and the circle, in both the focusing and the defocusing case. By employing the method of commuting flows introduced by Killip and Vi\c{s}an (2019), we prove global…

Analysis of PDEs · Mathematics 2024-11-11 Justin Forlano

We investigate the stability of traveling front solutions to nonlinear diffusive-dispersive equations of Burgers type, with a primary focus on the Korteweg-de Vries-Burgers (KdVB) equation, although our analytical findings extend more…

Analysis of PDEs · Mathematics 2025-06-03 Blake Barker , Jared C. Bronski , Vera Mikyoung Hur , Zhao Yang

This paper is concerned with the local well-posedness for the higher-order generalized KdV type equation with low-degree of nonlinearity. The equation arises as a non-integrable and lower nonlinearity version of the higher-order KdV…

Analysis of PDEs · Mathematics 2021-09-07 Hayato Miyazaki

Localized patterns and nonlinear oscillation formation on the bounded free surface of an ideal incompressible liquid are analytically investigated . Cnoidal modes, solitons and compactons, as traveling non-axially symmetric shapes are…

Fluid Dynamics · Physics 2009-11-06 Andrei Ludu , Jerry P. Draayer

The stability of the elliptic solutions to the defocusing complex modified Korteweg-de Vries (cmKdV) equation is studied. The orbital stability of the cmKdV equation was established in [19] when the periodic orbits do not oscillate around…

Exactly Solvable and Integrable Systems · Physics 2022-06-23 Wen-Rong Sun

In this paper we investigate the global well-posedness and long-term behavior of solutions to the kinetic derivative nonlinear Schr\"odinger equation (KDNLS) on the real line. The equation incorporates both local cubic nonlinearities with…

Analysis of PDEs · Mathematics 2025-08-13 Nobu Kishimoto , Kiyeon Lee

Considering lateral influence from adjacent lane, an improved car-following model is developed in this paper. Then linear and non-linear stability analyses are carried out. The modified Korteweg-de Vries (MKdV) equation is derived with the…

Computational Engineering, Finance, and Science · Computer Science 2014-07-15 Yuhan Jia , Jianping Wu , Yiman Du , Geqi Qi

The distance between the solutions to the integrable Korteweg-de Vries (KdV) equation and a broad class of non-integrable generalized KdV (gKdV) equations is estimated in appropriate Sobolev spaces. This family of equations includes, as…

Analysis of PDEs · Mathematics 2026-02-06 Nikos I. Karachalios , Dionyssios Mantzavinos , Jeffrey Oregero

In this announcement we present a general and new approach to analyzing the asymptotics of oscillatory Riemann-Hilbert problems. Such problems arise, in particular, in evaluating the long-time behavior of nonlinear wave equations solvable…

Analysis of PDEs · Mathematics 2016-09-06 Percy Deift , Xin Zhou

In this paper we study the effect of rotation on nonlinear wave phenomena in weakly dispersive media modeled by the Korteweg-de Vries equation on the real line. It is well known that smoothing in the case of the KdV equation with periodic…

Analysis of PDEs · Mathematics 2024-04-09 M. B. Erdogan , N. Tzirakis

We establish the nonlinear stability of $N$-soliton solutions of the modified Korteweg-de Vries (mKdV) equation. The $N$-soliton solutions are global solutions of mKdV behaving at (positive and negative) time infinity as sums of…

Analysis of PDEs · Mathematics 2021-10-27 Stefan Le Coz , Zhong Wang

Many car-following models of traffic flow admit the possibility of absolute stability, a situation in which uniform traffic flow at any spacing is linearly stable. Near the threshold of absolute stability, these models can often be reduced…

Pattern Formation and Solitons · Physics 2026-04-13 Douglas A. Kurtze

In this article, we prove existence of a non-scattering solution, which is minimal in some sense, to the mass-subcritical generalized Korteweg-de Vries (gKdV) equation in the scale critical ^L^r space. We construct this solution by a…

Analysis of PDEs · Mathematics 2016-02-18 Satoshi Masaki , Jun-ichi Segata

A nonlocal form of a two-layer fluid system is proposed by a simple symmetry reduction, then by applying multiple scale method to it a general nonlocal two place variable coefficient modified KdV (VCmKdV) equation with shifted space and…

Exactly Solvable and Integrable Systems · Physics 2019-03-05 Xi-Zhong Liu

An optimal-velocity (OV) model describes car motion on a single lane road. In particular, near to the boundary signifying the onset of traffic jams, this model reduces to a perturbed Korteweg-de Vries (KdV) equation using asymptotic…

Dynamical Systems · Mathematics 2017-04-26 Laura Hattam

New two-component soliton solutions of the coupled high-frequency (HF) - low-frequency (LF) system, based on Schr\"odinger - Korteweg - de Vries (KdV) system with the Zakharov's coupling, are obtained for arbitrary relative strengths of the…

Pattern Formation and Solitons · Physics 2017-10-25 Gromov Evgeny , Malomed Boris

Debris flows often exhibit coherent wave structures-shock-like roll waves on steeper slopes and weaker, more sinusoidal dispersive pulses on gentler slopes. Coarse-rich heads raise basal resistance, whereas fines-rich tails lower it; in…

Fluid Dynamics · Physics 2026-02-11 Louis-S. Bouchard , Seulgi Moon

The existence of ``dispersion-managed solitons'', i.e., stable pulsating solitary-wave solutions to the nonlinear Schr\"{o}dinger equation with periodically modulated and sign-variable dispersion is now well known in nonlinear optics. Our…

Exactly Solvable and Integrable Systems · Physics 2009-11-07 Simon Clarke , Boris A. Malomed , Roger Grimshaw