Well-posedness for non-isotropic degenerate parabolic-hyperbolic equations
Gui-Qiang Chen, Benoît Perthame (2003)
Annales de l'I.H.P. Analyse non linéaire
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Gui-Qiang Chen, Benoît Perthame (2003)
Annales de l'I.H.P. Analyse non linéaire
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Kaouther Ammar (2010)
Open Mathematics
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The paper addresses the existence and uniqueness of entropy solutions for the degenerate triply nonlinear problem: b(v)t − div α(v, ▽g(v)) = f on Q:= (0, T) × Ω with the initial condition b(v(0, ·)) = b(v 0) on Ω and the nonhomogeneous boundary condition “v = u” on some part of the boundary (0, T) × ∂Ω”. The function g is continuous locally Lipschitz continuous and has a flat region [A 1, A 2,] with A 1 ≤ 0 ≤ A 2 so that the problem is of parabolic-hyperbolic type.
Ping Zhang, Yuxi Zheng (2005)
Annales de l'I.H.P. Analyse non linéaire
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Fengquan Li (2007)
Commentationes Mathematicae Universitatis Carolinae
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Using as a main tool the time-regularizing convolution operator introduced by R. Landes, we obtain regularity results for entropy solutions of a class of parabolic equations with irregular data. The results are obtained in a very general setting and include known previous results.
Weiping Yan (2013)
Open Mathematics
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This paper is devoted to the study of the weak-strong uniqueness property for full compressible magnetohydrodynamics flows. The governing equations for magnetohydrodynamic flows are expressed by the full Navier-Stokes system for compressible fluids enhanced by forces due to the presence of the magnetic field as well as the gravity and an additional equation which describes the evolution of the magnetic field. Using the relative entropy inequality, we prove that a weak solution coincides...