[HTML][HTML] A view of the peakon world through the lens of approximation theory

H Lundmark, J Szmigielski - Physica D: Nonlinear Phenomena, 2022 - Elsevier
Peakons (peaked solitons) are particular solutions admitted by certain nonlinear PDEs, most
famously the Camassa–Holm shallow water wave equation. These solutions take the form of …

Growth of perturbations to the peaked periodic waves in the Camassa--Holm equation

A Madiyeva, DE Pelinovsky - SIAM Journal on Mathematical Analysis, 2021 - SIAM
Peaked periodic waves in the Camassa--Holm equation are revisited. Linearized evolution
equations are derived for perturbations to the peaked periodic waves, and linearized …

Stability of peaked solitary waves for a class of cubic quasilinear shallow-water equations

RM Chen, H Di, Y Liu - International Mathematics Research …, 2023 - academic.oup.com
This paper is concerned with two classes of cubic quasilinear equations, which can be
derived as asymptotic models from shallow-water approximation to the 2D incompressible …

Orbital Stability of Smooth Solitary Waves for the Novikov Equation

B Ehrman, MA Johnson, S Lafortune - Journal of Nonlinear Science, 2024 - Springer
We study the orbital stability of smooth solitary wave solutions of the Novikov equation,
which is a Camassa–Holm-type equation with cubic nonlinearities. These solitary waves are …

Stability of smooth solitary waves in the b-Camassa–Holm equation

S Lafortune, DE Pelinovsky - Physica D: Nonlinear Phenomena, 2022 - Elsevier
We derive the precise stability criterion for smooth solitary waves in the b-family of Camassa–
Holm equations. The smooth solitary waves exist on the constant background. In the …

Spectral and linear stability of peakons in the Novikov equation

S Lafortune - Studies in Applied Mathematics, 2024 - Wiley Online Library
The Novikov equation is a peakon equation with cubic nonlinearity, which, like the Camassa–
Holm and the Degasperis–Procesi, is completely integrable. In this paper, we study the …

The stability of the b-family of peakon equations

EG Charalampidis, R Parker, PG Kevrekidis… - …, 2023 - iopscience.iop.org
In the present work we revisit the b-family model of peakon equations, containing as special
cases the b= 2 (Camassa–Holm) and b= 3 (Degasperis–Procesi) integrable examples. We …

Local well-posedness and decay for some generalized shallow water equations

R Xu, Y Yang - Journal of Differential Equations, 2023 - Elsevier
Consideration herein is a big class of nonlocal partial differential equations including some
classical shallow water models such as b-family equation, Novikov equation, rotation …

A local discontinuous Galerkin method for the Novikov equation

Q Tao, XK Chang, Y Liu, CW Shu - Mathematics of Computation, 2024 - ams.org
In this paper, we propose a local discontinuous Galerkin (LDG) method for the Novikov
equation that contains cubic nonlinear high-order derivatives. Flux correction techniques are …

Orbital stability of two-component peakons

C He, X Liu, C Qu - Science China Mathematics, 2023 - Springer
We prove that the two-component peakon solutions are orbitally stable in the energy space.
The system concerned here is a two-component Novikov system, which is an integrable …