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The Perturbed Riemann Problem with Delta Shock for a Hyperbolic System

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  • Xinli Han
  • Lijun Pan

Abstract

In this paper, we study the perturbed Riemann problem with delta shock for a hyperbolic system. The problem is different from the previous perturbed Riemann problems which have no delta shock. The solutions to the problem are obtained constructively. From the solutions, we see that a delta shock in the corresponding Riemann solution may turn into a shock and a contact discontinuity under a perturbation of the Riemann initial data. This shows the instability and the internal mechanism of a delta shock. Furthermore, we find that the Riemann solution of the hyperbolic system is instable under this perturbation, which is also quite different from the previous perturbed Riemann problems.

Suggested Citation

  • Xinli Han & Lijun Pan, 2018. "The Perturbed Riemann Problem with Delta Shock for a Hyperbolic System," Advances in Mathematical Physics, Hindawi, vol. 2018, pages 1-11, September.
    • Handle: RePEc:hin:jnlamp:4925957
    DOI: 10.1155/2018/4925957
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