On the Equivalence of Eulerian and Lagrangian Variables for the Two-Component Camassa–Holm System
Chapter
Submitted version
Permanent lenke
http://hdl.handle.net/11250/2577047Utgivelsesdato
2018Metadata
Vis full innførselSamlinger
- Institutt for matematiske fag [2603]
- Publikasjoner fra CRIStin - NTNU [39860]
Originalversjon
10.1007/978-3-319-89800-1_7Sammendrag
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 given in Eulerian coordinates, into a system of ordinary differential equations in Lagrangian coordinates. It is of considerable interest to study the stability of solutions and how this is manifested in Eulerian and Lagrangian variables. We identify criteria of convergence, such that convergence in Eulerian coordinates is equivalent to convergence in Lagrangian coordinates. In addition, we show how one can approximate global conservative solutions of the scalar Camassa–Holm equation by smooth solutions of the two-component Camassa–Holm system that do not experience wave breaking.