Articles

THE RIEMANN PROBLEM WITH DELTA INITIAL DATA FOR THE ONE-DIMENSIONAL CHAPLYGIN GAS EQUATIONS

  • WANG Zhen ,
  • ZHANG Qing-Ling
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  • 1. Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China;
    2. School of Mathematics and Computer Sciences, Jianghan University, Wuhan 430056, China

Received date: 2010-11-09

  Revised date: 2011-04-27

  Online published: 2012-05-20

Supported by

This work is partially supported by National Natural Science Foundation of China (10871199).

Abstract

In this article, we study the Riemann problem with delta initial data for the one-dimensional Chaplygin gas equations. Under the generalized Rankine-Hugoniot conditions and the entropy condition, we constructively obtain the global existence of generalized solutions that explicitly exhibit four kinds of different structures. Moreover, we obtain the stability of generalized solutions by making use of the perturbation of the initial data.

Cite this article

WANG Zhen , ZHANG Qing-Ling . THE RIEMANN PROBLEM WITH DELTA INITIAL DATA FOR THE ONE-DIMENSIONAL CHAPLYGIN GAS EQUATIONS[J]. Acta mathematica scientia, Series B, 2012 , 32(3) : 825 -841 . DOI: 10.1016/S0252-9602(12)60064-2

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