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Existence and stability of entropy solutions for the hyperbolic systems of isentropic gas dynamics in Eulerian and Lagrangian coordinates. (English) Zbl 0853.76077
Summary: We prove the existence and compactness (stability) of entropy solutions for the hyperbolic systems of conservation laws corresponding to the isentropic gas dynamics, where the pressure and density are related by a \(\gamma\)-law, for any \(\gamma>1\). Our results considerably extend and simplify the program initiated by DiPerna and provide a complete existence proof. Our methods are based on the compensated compactness and the kinetic formulation of systems of conservation laws.

76N15 Gas dynamics, general
35Q35 PDEs in connection with fluid mechanics
35L65 Hyperbolic conservation laws
Full Text: DOI
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