Asymptotic behaviors of the solution to an initial-boundary value problem for scalar viscous conservation laws
In: Applied mathematics letters, Jg. 15 (2002), Heft 6, S. 727-734
Online
academicJournal
- print, 9 ref
This paper is concerned with the asymptotic behaviors of the solutions to the initial-boundary value problem for scalar viscous conservations laws ut + f(u)x = uxx on [0,1], with the boundary condition u(0,t) = u-(t) → u-, u(1,t) = u+(t) → u+, as t → +∞ and the initial data u(x,0) = u0(x) satisfying u0(0) = u-(0), u0(1) = u+(1), where u± are given constants, u- ¬= u+ and f is a given function satisfying f(u) > 0 for u under consideration. By means of an elementary energy estimates method, both the global existence and the asymptotic behavior are obtained. When u― < u+, which corresponds to rarefaction waves in inviscid conservation laws, no smallness conditions are needed. While for u― > u+, which corresponds to shock waves in inviscid conservation laws, it is established for weak shock waves, that is, |u― - u+| is small. Moreover, when u±(t) ≡ u±, t ≥ 0, exponential decay rates are both obtained. rights reserved.
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Asymptotic behaviors of the solution to an initial-boundary value problem for scalar viscous conservation laws
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Autor/in / Beteiligte Person: | TAO, PAN ; HONGXOA, LIU |
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Zeitschrift: | Applied mathematics letters, Jg. 15 (2002), Heft 6, S. 727-734 |
Veröffentlichung: | Oxford: Elsevier, 2002 |
Medientyp: | academicJournal |
Umfang: | print, 9 ref |
ISSN: | 0893-9659 (print) |
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