Convergence of a Relaxation Scheme for a 2×2 Triangular System of Conservation Laws

Convergence of a Relaxation Scheme for a 2×2 Triangular System of Conservation Laws

Year:    2014

Author:    C. Agrell, N. H. Risebro

International Journal of Numerical Analysis and Modeling, Vol. 11 (2014), Iss. 1 : pp. 148–171

Abstract

We study relaxation approximations to solutions of a 2 × 2 triangular system of conservation laws. We show that smooth relaxation approximations exist for all time. A finite difference approximation of the relaxation system gives rise to a relaxation scheme of the Jin and Xin type. In both cases we show that a sequence of approximate solutions is produced where the limit is a weak solution of the triangular system. Compensated compactness is used to establish convergence.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/2014-IJNAM-519

International Journal of Numerical Analysis and Modeling, Vol. 11 (2014), Iss. 1 : pp. 148–171

Published online:    2014-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    24

Keywords:    triangular systems of conservation laws relaxation compensated compactness.

Author Details

C. Agrell

N. H. Risebro