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Transactions of the American Mathematical Society
Transactions of the American Mathematical Society
ISSN 1088-6850(online) ISSN 0002-9947(print)

 

Periodic solutions of conservation laws constructed through Glimm scheme


Author: Hermano Frid
Journal: Trans. Amer. Math. Soc. 353 (2001), 4529-4544
MSC (1991): Primary 35L65; Secondary 35B35, 76N15
Published electronically: June 1, 2001
MathSciNet review: 1851182
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Abstract:

We present a periodic version of the Glimm scheme applicable to special classes of $2\times 2$ systems for which a simplication first noticed by Nishida (1968) and further extended by Bakhvalov (1970) and DiPerna (1973) is available. For these special classes of $2\times 2$ systems of conservation laws the simplification of the Glimm scheme gives global existence of solutions of the Cauchy problem with large initial data in $L^\infty\cap BV_{loc}(\mathbb{R} )$, for Bakhvalov's class, and in $L^\infty\cap BV(\mathbb{R} )$, in the case of DiPerna's class. It may also happen that the system is in Bakhvalov's class only at a neighboorhood $\mathcal{V}$ of a constant state, as it was proved for the isentropic gas dynamics by DiPerna (1973), in which case the initial data is taken in $L^\infty\cap BV(\mathbb{R} )$ with $\text{TV}\,(U_0)<\text{const.}$, for some constant which is $O((\gamma-1)^{-1})$ for the isentropic gas dynamics systems. For periodic initial data, our periodic formulation establishes that the periodic solutions so constructed, $u(\cdot ,t)$, are uniformly bounded in $L^\infty\cap BV([0,\ell])$, for all $t>0$, where $\ell$ is the period. We then obtain the asymptotic decay of these solutions by applying a theorem of Chen and Frid in (1999) combined with a compactness theorem of DiPerna in (1983). The question about the decay of Nishida's solution was proposed by Glimm and Lax in (1970) and has remained open since then. The classes considered include the $p$-systems with $p(v)=\gamma v^{-\gamma}$, $-1<\gamma<+\infty$, $\gamma\ne0$, which, for $\gamma\ge 1$, model isentropic gas dynamics in Lagrangian coordinates.


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Additional Information

Hermano Frid
Affiliation: Instituto de Matemática Pura e Aplicada-IMPA, Estrada Dona Castorina, 110, 22460-320 Rio de Janeiro RJ, Brasil
Email: hermano@impa.br

DOI: http://dx.doi.org/10.1090/S0002-9947-01-02813-6
PII: S 0002-9947(01)02813-6
Keywords: Glimm's scheme, periodic solutions, decay of periodic solutions, conservation laws
Received by editor(s): August 1, 2000
Received by editor(s) in revised form: November 29, 2000
Published electronically: June 1, 2001
Article copyright: © Copyright 2001 American Mathematical Society