Journal
NONLINEAR ANALYSIS-THEORY METHODS & APPLICATIONS
Volume 71, Issue 3-4, Pages 1180-1195Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.na.2008.11.050
Keywords
Hyperbolic-elliptic coupled system; Energy estimate; Multi-dimensions; Green function; Pointwise estimate
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In this paper, we study the time-asymptotic behavior of solutions for a hyperbolic-elliptic coupled system known as a model system of the radiating gas in R-n. When the initial perturbation corresponding to a positive constant state is sufficiently small in H-s(R-n). the global existence and pointwise estimates of the solution are obtained by using the method of the Green function combined with some energy estimates. Furthermore, we obtain the L-p, 1 <= p <= + infinity, convergence rate of the solution. (C) 2008 Elsevier Ltd. All rights reserved.
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