We prove existence and boundedness of classical solutions for a family of viscous conservation laws in one space dimension for arbitrarily large time. The result relies on H. Amann’s criterion for global existence of solutions and on suitable uniform-in-time estimates for the solution. We also apply Ju ̈ngel’s boundedness-by-entropy principle in order to obtain global existence for systems with possibly degenerate diffusion terms. This work is motivated by the study of a physical model for the space-time evolution of the strain and velocity of an anharmonic spring of finite length.
Global existence for a class of viscous systems of conservation laws / Marchesani, Stefano; Alasio, Luca. - In: NONLINEAR DIFFERENTIAL EQUATIONS AND APPLICATIONS. - ISSN 1420-9004. - (2019).
Global existence for a class of viscous systems of conservation laws
Stefano Marchesani;
2019
Abstract
We prove existence and boundedness of classical solutions for a family of viscous conservation laws in one space dimension for arbitrarily large time. The result relies on H. Amann’s criterion for global existence of solutions and on suitable uniform-in-time estimates for the solution. We also apply Ju ̈ngel’s boundedness-by-entropy principle in order to obtain global existence for systems with possibly degenerate diffusion terms. This work is motivated by the study of a physical model for the space-time evolution of the strain and velocity of an anharmonic spring of finite length.File | Dimensione | Formato | |
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