Abstract

We consider a strictly hyperbolic, genuinely nonlinear system of conservation laws in one space dimension. A sharp decay estimate is proved for the positive waves in an entropy weak solution. The result is stated in terms of a partial ordering among positive measures, using symmetric rearrangements and a comparison with a solution of Burgers's equation with impulsive sources.

MSC codes

  1. 35L65

Keywords

  1. hyperbolic conservation laws
  2. positive nonlinear waves
  3. Burgers's equation

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Published In

cover image SIAM Journal on Mathematical Analysis
SIAM Journal on Mathematical Analysis
Pages: 659 - 677
ISSN (online): 1095-7154

History

Published online: 1 August 2006

MSC codes

  1. 35L65

Keywords

  1. hyperbolic conservation laws
  2. positive nonlinear waves
  3. Burgers's equation

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