Local Discontinuous Galerkin Methods for the Degasperis-Procesi Equation

Local Discontinuous Galerkin Methods for the Degasperis-Procesi Equation
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Degasperis-Procesi 方程的局部不连续 Galerkin 方法

DOI:
10.4208/cicp.300410.300710a
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发表时间:
2011-08
影响因子:
3.7
通讯作者:
Shu, Chi-Wang
Shu, Chi-Wang
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Xu, Yan;Shu, Chi-Wang

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本文发展、分析和测试了求解DeGasperis-Procesi方程的局部间断Galerkin(LDG)方法,该方程含有非线性高阶导数和可能的间断或尖锐过渡解。LDG方法具有对任意h和p自适应的灵活性。我们证明了通解的L2稳定性。在分段常数P_0的情况下,证明了格式的全变差稳定性。给出了非线性DeGasperis-Procesi方程不同类型解的数值模拟结果,以说明LDG方法的精度和能力。AMS科目分类:65M60、35Q53
In this paper, we develop, analyze and test local discontinuous Galerkin (LDG) methods for solving the Degasperis-Procesi equation which contains nonlinear high order derivatives, and possibly discontinuous or sharp transition solutions. The LDG method has the flexibility for arbitrary h and p adaptivity. We prove the L2 stability for general solutions. The proof of the total variation stability of the schemes for the piecewise constant P0 case is also given. The numerical simulation results for different types of solutions of the nonlinear Degasperis-Procesi equation are provided to illustrate the accuracy and capability of the LDG method. AMS subject classifications: 65M60, 35Q53
DOI: 10.1137/1.9780898717440
发表时间: 2008-12
期刊: --
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