Global existence and asymptotic behavior of classical solutions to Goursat problem for diagonalizable quasilinear hyperbolic system

Global existence and asymptotic behavior of classical solutions to Goursat problem for diagonalizable quasilinear hyperbolic system
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可对角化拟线性双曲系统Goursat问题经典解的全局存在性和渐近行为

DOI:
10.1186/1687-2770-2012-36
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发表时间:
2012-04
影响因子:
1.7
通讯作者:
Pan, Kejia
Pan, Kejia
中科院分区:
数学4区
文献类型:
--
作者:
Liu, Jianli;Pan, Kejia

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本文研究了可对角拟线性双曲型系统Goursat问题经典解的整体存在性和渐近性。在系统是严格双曲线性退化的假设下,我们得到了边界数据具有有界l1∩L∞范数的c1解及其导数的整体存在唯一性。基于存在性结果,我们可以证明当趋于一体时,解接近于分段式c1行波解的组合。作为一个重要的例子,我们将结果应用于chaplygin气体系统。数学学科分类(2000):35B40;35预示;35 q72。
In this article, we investigate the global existence and asymptotic behavior of classical solutions to Goursat problem for diagonalizable quasilinear hyperbolic system. Under the assumptions that system is strictly hyperbolic and linearly degenerate, we obtain the global existence and uniqueness ofC1solutions with the boundedL1∩ L∞norm of the boundary data as well as their derivatives. Based on the existence result, we can prove that whenttends to in nity, the solutions approach a combination of piece-wisedC1traveling wave solutions. As the important example, we apply the results to the chaplygin gas system.Mathematics Subject Classi cation (2000):35B40; 35L50; 35Q72.
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