1.

Record Nr.

UNINA9910300250803321

Autore

Amadori Debora

Titolo

Error estimates for well-balanced schemes on simple balance laws [[electronic resource] ] : one-dimensional position-dependent models / / by Debora Amadori, Laurent Gosse

Pubbl/distr/stampa

Cham : , : Springer International Publishing : , : Imprint : Springer, , 2015

ISBN

3-319-24785-9

Edizione

[1st ed. 2015.]

Descrizione fisica

1 online resource (119 p.)

Collana

SpringerBriefs in Mathematics, , 2191-8198

Disciplina

515.3535

Soggetti

Partial differential equations

Numerical analysis

Mathematical physics

Physics

Partial Differential Equations

Numerical Analysis

Mathematical Applications in the Physical Sciences

Numerical and Computational Physics, Simulation

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references at the end of each chapters and index.

Nota di contenuto

1 Introduction -- 2 Local and global error estimates -- 3 Position-dependent scalar balance laws -- 4 Lyapunov functional for inertial approximations -- 5 Entropy dissipation and comparison with Lyapunov estimates -- 6 Conclusion and outlook.

Sommario/riassunto

This monograph presents, in an attractive and self-contained form, techniques based on the L1 stability theory derived at the end of the 1990s by A. Bressan, T.-P. Liu and T. Yang that yield original error estimates for so-called well-balanced numerical schemes solving 1D hyperbolic systems of balance laws. Rigorous error estimates are presented for both scalar balance laws and a position-dependent relaxation system, in inertial approximation. Such estimates shed light on why those algorithms based on source terms handled like "local scatterers" can outperform other, more standard, numerical schemes.



Two-dimensional Riemann problems for the linear wave equation are also solved, with discussion of the issues raised relating to the treatment of 2D balance laws. All of the material provided in this book is highly relevant for the understanding of well-balanced schemes and will contribute to future improvements.