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时间分数阶扩散方程双线性元的高精度分析

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时间分数阶扩散方程双线性元的高精度分析 樊明智, 王芬玲, 赵艳敏, 史艳华, 张亚东许昌学院数学与统计学院, 许昌 461000 High Accuracy Analysis of the Bilinear Element for the Time-Fractional Diffusion Equstions FAN Minzhi, WANG Fenling, ZHAO Yanmin, SHI Yanhua, ZHANG YadongSchool of Mathematics and Statistics, Xuchang University, Xuchang 461000
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摘要针对具有Caputo导数的二维时间分数阶扩散方程进行高精度有限元分析.首先,基于双线性元和L1逼近建立了一个全离散格式,并证明其在H1模意义下的无条件稳定性;其次,借助Riesz投影和分数阶导数的技巧得到了L2模意义下的最优误差估计,结合该元插值算子与Riesz投影算子之间的高精度结果和插值后处理技术,导出了H1意义下的超逼近性质和超收敛结果.该结果是单独利用双线性插值算子和Riesz投影算子均无法得到的.最后,利用数值算例验证了理论分析的正确性.
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收稿日期: 2018-05-21
PACS:O242.21
基金资助:国家自然科学基金(11101381),河南省教育厅自然科学基金(16A110022;17A110011)资助项目.

引用本文:
樊明智, 王芬玲, 赵艳敏, 史艳华, 张亚东. 时间分数阶扩散方程双线性元的高精度分析[J]. 应用数学学报, 2019, 42(4): 535-549. FAN Minzhi, WANG Fenling, ZHAO Yanmin, SHI Yanhua, ZHANG Yadong. High Accuracy Analysis of the Bilinear Element for the Time-Fractional Diffusion Equstions. Acta Mathematicae Applicatae Sinica, 2019, 42(4): 535-549.
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[1] Li L, Liu J G, Lu J. Fractional stochastic differential equations satisfying fluctuation-dissipation theorem. J. Statis. Phy., 2017, 169(2):316-339
[2] Zeng F H, Li C, Liu F, Turner I. Numerical algorithms for time-fractional subdiffusion equation with second-order accuracy. SIAM J. Sci. Comput., 2015, 37(1):A55-A78
[3] Cui M R. Compact alternating direction implicit method for two-dimensional time fractional diffu sion equation. J. Comput. Phy., 2012, 231(6):2621-2633
[4] Zhang Y N, Sun Z Z, Liao H L. Finite difference methods for the time fractional diffusion equation on non-uniform meshes. J. Comput. Phy., 2014, 265:195-210
[5] Zheng M, Liu F, Turner I, Anh V. A novel high order space-time spectral method for the time-fractional Fokker-Planck equation. SIAM J. Sci. Comput., 2015, 37(2):A701-A724
[6] Jiang Y J, Ma J T. High-order finite element methods for time-fractional partial differential equations. J. Comput. Appl. Math., 2011, 235(11):3285-3290
[7] Jin B, Lazarov R, Zhou Z. Error estimates for a semidiscrete finite element method for fractional order parabolic equations. SIAM J. Numer. Anal., 2013, 51(1):445-466
[8] Mustapha K, Abdallah B, Urati K M F. A discontinuous Petrov-Galerkin method for time-fractional diffusion problems. SIAM J. Numer. Anal., 2014, 52(5):2512-2529
[9] Chabaud B, Cockburn B. Uniform-in-time superconvergence of HDG methods for the heat equation. Math. Comput., 2012, 81(277):107-129
[10] Zhao Y M, Chen P, Bu W P, Liu X T, Tang Y F. Two mixed finite element methods for time-fractional diffusion equations. J. Sci. Comput., 2017, 70(1):407-428
[11] Zhao Y M, Zhang Y D, Shi D Y, Liu F, Turner I. Superconvergence analysis of nonconforming fnite element method for two-dimensional time fractional diffusion equations. Appl. Math. Letters, 2016, 59(1):38-47
[12] 林群, 严宁宁. 高效有限元构造与分析. 保定:河北大学出版社, 1996(Lin Qun, Yan Ningning. The Construction and Analysis of high efficiency finite element Methods. Baoding:Hebei University Press, 1996)
[13] Lin Q, Lin J F. Extrapolation of the bilinear element approximation for Poisson equation on Anisotropic Meshes. Numer. Meth. P.D.E, 2007, 23(5):960-967
[14] Lin Q, Wang H, Zhang S H. Uniform optimal-order estimates for finite element methods for advection-diffusion equations. J. Sys. Sci. Comp,, 2009, 22(4):555-559
[15] 林群, 王凯欣, 王宏, 阴小波. 对流扩散方程双线性有限元解的一致估计. 数学的实践与认识, 2011, 41(21):220-223(Lin Qun, Wang Kaixin, Wang Hong, Yin Xiaobo. A Uniform error estimate for bilinear finite element solution of advection-diffusion equations. Mathematics in Proctice and Theory, 2011, 41(21):220-223)
[16] 王芬玲, 石东洋. 非线性色散耗散波动方程双线性元的高精度分析. 数学物理学报, 2014, 34(6):1599-1610(WANG Fenling, SHI Dongyang. High Accurary Analysis of the Bilinear Element for Nonlinear Dispersion-Dissipative Wave Equations. Acta Mathematica Scientia, 2014, 34(6):1599-1610)
[17] 罗振东. 混合有限元法基础及其应用. 北京:科学出版社, 2006(Luo Zhendong. Foundation and Application of Mixed Finite Element Method. Beijing:Science Press, 2006)
[18] Lin Q, Lin J F. Finte element methods:accuracy and improvement. Beijing:Science Press, 2006

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