Article Dans Une Revue SIAM Journal on Mathematical Analysis Année : 2023

EXPONENTIAL ASYMPTOTIC STABILITY OF RIEMANN SHOCKS OF HYPERBOLIC SYSTEMS OF BALANCE LAWS

Résumé

For strictly entropic Riemann shock solutions of strictly hyperbolic systems of balance laws, we prove that exponential spectral stability implies large-time asymptotic orbital stability. As a preparation, we also prove similar results for constant solutions of initial value and initial boundary value problems, that seem to be new in this generality. Main key technical ingredients include the design of a nonlinear change of variables providing a hypocoercive Kawashima-type structure with dissipative boundary conditions in the high-frequency regime and the explicit identification of most singular parts of the linearized evolution, both being deduced from the mere spectral assumption.

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Dates et versions

hal-03738369 , version 1 (26-07-2022)

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Grégory Faye, Luis Miguel Rodrigues. EXPONENTIAL ASYMPTOTIC STABILITY OF RIEMANN SHOCKS OF HYPERBOLIC SYSTEMS OF BALANCE LAWS. SIAM Journal on Mathematical Analysis, 2023, 55 (6), pp.6425-6456. ⟨10.1137/22M1535152⟩. ⟨hal-03738369⟩
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