Viscosity and relaxation approximations for a hyperbolic-elliptic mixed type system
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- by Yun-guang Lu and Christian Klingenberg PDF
- Proc. Amer. Math. Soc. 132 (2004), 1305-1309 Request permission
Abstract:
To a given system of conservation laws \begin{equation*}\left \{ \begin {array}{l} u_t + f(u,v,h(u,v))_x =0 v_t + g(u,v,h(u,v))_x =0 \end{array}\right . \end{equation*} we associate the system \begin{equation*}\left \{ \begin {array}{l} u_t + f(u,v,s)_x = \epsilon u_{xx} v_t + g(u,v,s)_x = \epsilon v_{xx} s_t + {s - h(u,v) \over \tau } = \epsilon s_{xx}, \end{array}\right . \end{equation*} which is of mixed type. Under certain conditions, convergence of this latter system for $\epsilon \rightarrow 0$ with $\tau = o(\epsilon )$ is established without the need of stability criteria or hyperbolicity of the left-hand sides of the equations.References
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Additional Information
- Yun-guang Lu
- Affiliation: Department of Mathematics, University of Science and Technology of China, Hefei and Departamento de Matemáticas Universidad Nacional de Colombia, Bogota
- Email: yglu@matematicas.unal.edu.co
- Christian Klingenberg
- Affiliation: Department of Mathematicas, Würzburg University, Würzburg, 97074, Germany
- MR Author ID: 221691
- Email: klingen@mathematik.uni-wuerzburg.de
- Received by editor(s): February 10, 2002
- Published electronically: December 18, 2003
- © Copyright 2003 American Mathematical Society
- Journal: Proc. Amer. Math. Soc. 132 (2004), 1305-1309
- MSC (2000): Primary 35L65
- DOI: https://doi.org/10.1090/S0002-9939-03-07326-X
- MathSciNet review: 2053334