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February  2009, 23(1&2): 415-433. doi: 10.3934/dcds.2009.23.415

Asymptotic expansions in two-fluid compressible Euler-Maxwell equations with small parameters

Yue-Jun Peng 1, and  Shu Wang 2,

1. 

Laboratoire de Mathématiques, CNRS UMR 6620, Université Clermont-Ferrand 2, 63177 Aubière cedex, France
2. 

College of Applied Sciences, Beijing University of Technology, PingLeYuan100, Chaoyang District, Beijing 100022

Received  December 2007 Revised  April 2008 Published  September 2008

This work is concerned with the two-fluidEuler-Maxwell equations for plasmas with small parameters. We study,by means of asymptotic expansions, the zero-relaxation limit, thenon-relativistic limit and the combined non-relativistic and quasi-neutrallimit. For each limit with well-prepared initial data, we show theexistence and uniqueness of an asymptotic expansion up to any order. Forgeneral data, an asymptotic expansion up to order 1 of thenon-relativistic limit is constructed by taking into account the initiallayers. Finally, we discuss the justification of the limits.
Keywords: formal limits, initial layer expansion, Compressible Euler-Maxwell equations, asymptotic expansion.
Mathematics Subject Classification: 35B40, 35C20, 35L60, 35Q35.
Citation: Yue-Jun Peng, Shu Wang. Asymptotic expansions in two-fluid compressible Euler-Maxwell equations with small parameters. Discrete & Continuous Dynamical Systems, 2009, 23 (1&2) : 415-433. doi: 10.3934/dcds.2009.23.415
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