Viscosity methods for piecewise smooth solutions to scalar conservation laws

Authors:
Tao Tang and Zhen-huan Teng

Journal:
Math. Comp. **66** (1997), 495-526

MSC (1991):
Primary 65M10, 65M05, 35L65

DOI:
https://doi.org/10.1090/S0025-5718-97-00822-3

MathSciNet review:
1397446

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Abstract | References | Similar Articles | Additional Information

Abstract: It is proved that for scalar conservation laws, if the flux function is strictly convex, and if the entropy solution is piecewise smooth with finitely many discontinuities (which includes initial central rarefaction waves, initial shocks, possible spontaneous formation of shocks in a future time and interactions of all these patterns), then the error of viscosity solution to the inviscid solution is bounded by in the -norm, which is an improvement of the upper bound. If neither central rarefaction waves nor spontaneous shocks occur, the error bound is improved to .

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Additional Information

**Tao Tang**

Affiliation:
Department of Mathematics and Statistics, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6

Email:
ttang@sfu.ca

**Zhen-huan Teng**

Affiliation:
Department of Mathematics, Peking University, Beijing 100871, China

Email:
tengzh@sxx0.math.pku.edu.cn

DOI:
https://doi.org/10.1090/S0025-5718-97-00822-3

Keywords:
Hyperbolic conservation laws,
error estimate,
viscosity methods,
piecewise smooth

Received by editor(s):
November 2, 1995

Received by editor(s) in revised form:
April 5, 1996

Additional Notes:
Research of the first author was supported by NSERC Canada Grant OGP0105545.

Research of the second author was supported by the National Natural Science Foundation of China and the Science Fund of the Education Commission of China.

Article copyright:
© Copyright 1997
American Mathematical Society