## Abstract

The asymptotic stability of traveling wave solutions with shock profile is considered for scalar viscous conservation laws u_{t}+f(u)_{x}=μu_{xx} with the initial data u_{0} which tend to the constant states u_{±} as x→±∞. Stability theorems are obtained in the absence of the convexity of f and in the allowance of s (shock speed)=f′(u_{±}). Moreover, the rate of asymptotics in time is investigated. For the case f′(u_{+})<s<f′(u_{-}), if the integral of the initial disturbance over (-∞, x) is small and decays at the algebraic rate as |x|→∞, then the solution approaches the traveling wave at the corresponding rate as t→∞. This rate seems to be almost optimal compared with the rate in the case f=u^{2}/2 for which an explicit form of the solution exists. The rate is also obtained in the case f′(u_{±}=s under some additional conditions. Proofs are given by applying an elementary weighted energy method to the integrated equation of the original one. The selection of the weight plays a crucial role in those procedures.

Original language | English |
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Pages (from-to) | 83-96 |

Number of pages | 14 |

Journal | Communications in Mathematical Physics |

Volume | 165 |

Issue number | 1 |

DOIs | |

Publication status | Published - 1994 Oct |

## ASJC Scopus subject areas

- Statistical and Nonlinear Physics
- General Physics and Astronomy
- Mathematical Physics