Proceedings of the American Mathematical Society

ISSN 1088-6826(online) ISSN 0002-9939(print)



Relaxation limit for hyperbolic systems in chromatography

Author: Yun-Guang Lu
Journal: Proc. Amer. Math. Soc. 130 (2002), 3579-3583
MSC (2000): Primary 35L65, 35B40
Published electronically: June 18, 2002
MathSciNet review: 1920037
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Abstract: This paper is concerned with a $2n \times 2n$ nonlinear system which arises in chromatography. The global existence of solutions $(u^{\tau}_{i},v^{\tau}_{i})$ in $ L^{\infty}$ space for a Cauchy problem with initial data is obtained for any fixed $\tau > 0$, and the convergence of $(u^{\tau}_{i},v^{\tau}_{i})$ to its equilibrium state $(u_{i},v_{i})$, governed by a limit system is proved for the case $n=2$ by using the compensated compactness coupled with the framework of Tzavaras (1999).

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Yun-Guang Lu
Affiliation: Departamento de Matemáticas y Estadística, Universidad Nacional de Colombia, Bogotá, Colombia – and – Department of Mathematics, University of Science and Technology of China, Hefei, People’s Republic of China

Keywords: Multicomponent chromatography, relaxation limit, compensated compactness
Received by editor(s): March 24, 2001
Published electronically: June 18, 2002
Communicated by: David S. Tartakoff
Article copyright: © Copyright 2002 American Mathematical Society