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We show existence of a global weak dissipative solution of the Cauchy problem for the two-component Camassa-Holm (2CH) system on the line with nonvanishing and distinct spatial asymptotics. The influence from the second component in the 2CH…

Analysis of PDEs · Mathematics 2022-01-17 Katrin Grunert , Helge Holden , Xavier Raynaud

We prove existence of a global conservative solution of the Cauchy problem for the two-component Camassa-Holm (2CH) system on the line, allowing for nonvanishing and distinct asymptotics at plus and minus infinity. The solution is proven to…

Analysis of PDEs · Mathematics 2022-01-17 K. Grunert , H. Holden , X. Raynaud

A non-local evolution equation of the Camassa-Holm type with dissipation is considered. The local well-posedness of the solutions of the Cauchy problem involving the equation is established via Kato's approach and the wave breaking scenario…

Analysis of PDEs · Mathematics 2020-05-11 Igor Leite Freire , Nazime Sales Filho , Ligia Corrêa de Souza , Carlos Eduardo Toffoli

In this paper, we investigate the global conservative solutions to the generalized Camassa-Holm equation with dual-power nonlinearities. By introducing a new set of variables, we transform the original equation into an equivalent…

Analysis of PDEs · Mathematics 2026-03-16 Xiaoxin Chen , Jian Chen , Zhaoyang Yin

We show that the Cauchy problem for the Camassa-Holm equation has a unique, global, weak, and dissipative solution for any initial data $u_0\in H^1(\mathbb{R})$, such that $u_{0,x}$ is bounded from above almost everywhere. In particular, we…

Analysis of PDEs · Mathematics 2024-08-28 Katrin Grunert

We construct a global continuous semigroup of weak periodic conservative solutions to the two-component Camassa-Holm system, $u_t-u_{txx}+\kappa u_x+3uu_x-2u_xu_{xx}-uu_{xxx}+\eta\rho\rho_x=0$ and $\rho_t+(u\rho)_x=0$, for initial data…

Analysis of PDEs · Mathematics 2013-01-09 Katrin Grunert , Helge Holden , Xavier Raynaud

In this paper, we study the global existence of solutions of the Cauchy problem for a class of weakly dissipative nonlinear dispersive wave equations…

Analysis of PDEs · Mathematics 2026-03-24 Yiyao Lian , Zhenyu Wan , Zhaoyang Yin

In this paper, we prove that the existence and uniqueness of globally weak solutions to the Cauchy problem for the weakly dissipative Camassa-Holm equation in time weighted $H^1$ space. First, we derive an equivalent semi-linear system by…

Analysis of PDEs · Mathematics 2022-06-15 Zhiying Meng , Zhaoyang Yin

In this paper we mainly investigate the periodic $\mu$-Camassa-Holm equation. We show the existence of global conservative solutions to the Cauchy problem of the periodic $\mu$-Camassa-Holm equation. The result is obtained by introducing a…

Analysis of PDEs · Mathematics 2024-06-19 Wei Luo , Zhaoyang Yin

The Camassa-Holm equation and its two-component Camassa-Holm system generalization both experience wave breaking in finite time. To analyze this, and to obtain solutions past wave breaking, it is common to reformulate the original equation…

Analysis of PDEs · Mathematics 2022-01-17 Markus Grasmair , Katrin Grunert , Helge Holden

We study global conservative solutions of the Cauchy problem for the Camassa-Holm equation $u_t-u_{txx}+\kappa u_x+3uu_x-2u_xu_{xx}-uu_{xxx}=0$ with nonvanishing and distinct spatial asymptotics.

Analysis of PDEs · Mathematics 2022-01-17 Katrin Grunert , Helge Holden , Xavier Raynaud

In this paper, we would like to consider the Cauchy problem for a multi-component weakly coupled system of semi-linear $\sigma$-evolution equations with double dissipation for any $\sigma\ge 1$. The first main purpose is to obtain the…

Analysis of PDEs · Mathematics 2023-11-14 Yingli Qiao , Tuan Anh Dao

In this paper we study a Cauchy problem for the nonlinear damped wave equations for a general positive operator with discrete spectrum. We derive the exponential in time decay of solutions to the linear problem with decay rate depending on…

Analysis of PDEs · Mathematics 2017-12-15 Michael Ruzhansky , Niyaz Tokmagambetov

We consider a new partial differential equation, of a similar form to the Camassa-Holm shallow water wave equation, which was recently obtained by Degasperis and Procesi using the method of asymptotic integrability. We prove the exact…

Exactly Solvable and Integrable Systems · Physics 2007-05-23 A. Degasperis , D. D. Holm , A. N. W. Hone

We study the Cauchy problem for the nonlinear damped wave equation and establish the large data local well-posedness and small data global well-posedness with slowly decaying initial data. We also prove that the asymptotic profile of the…

Analysis of PDEs · Mathematics 2019-03-14 Masahiro Ikeda , Takahisa Inui , Yuta Wakasugi

A classification of integrable two-component systems of non-evolutionary partial differential equations that are analogous to the Camassa-Holm equation is carried out via the perturbative symmetry approach. Independently, a classification…

Exactly Solvable and Integrable Systems · Physics 2017-02-01 Andrew N. W. Hone , Vladimir Novikov , Jing Ping Wang

In this article we numerically revisit the long-time solution behavior of the Camassa-Holm equation. The finite difference solution of this integrable equation is sought subject to the newly derived initial condition with Delta-function…

Numerical Analysis · Mathematics 2014-12-04 Chueh-Hsin Chang , Ching-Hao Yu , Tony Wen-Hann Sheu

The interest in the Camassa-Holm equation inspired the search for various generalizations of this equation with interesting properties and applications. In this letter we deal with such a two-component integrable system of coupled…

Exactly Solvable and Integrable Systems · Physics 2009-07-14 Adrian Constantin , Rossen I. Ivanov

In this paper, we address the existence of global solutions to the Cauchy problem of the modified Camassa-Holm (mCH) equation, which is known as a model for the unidirectional propagation of shallow water waves. Based on the spectral…

Analysis of PDEs · Mathematics 2023-09-06 Yiling Yang , Engui Fan , Yue Liu

We establish the concept of $\alpha$-dissipative solutions for the two-component Hunter-Saxton system under the assumption that either $\alpha(x)=1$ or $0\leq \alpha(x)<1$ for all $x\in \mathbb{R}$. Furthermore, we investigate the Lipschitz…

Analysis of PDEs · Mathematics 2022-01-17 Katrin Grunert , Anders Nordli
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