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Kernel functions‐based approach for distributed order diffusion equations
Numerical Methods for Partial Differential Equations ( IF 3.9 ) Pub Date : 2020-10-19 , DOI: 10.1002/num.22578
Fazhan Geng 1, 2 , Xinyuan Wu 2, 3
Affiliation  

In this work, we solve distributed order diffusion equations (DODEs) by applying the theory on reproducing kernel functions (RKFs). The classical numerical quadrature formulae is used to approximate the DODE to a multi‐term Caputo fractional order diffusion equation (FDE). The Mittag‐Leffler RKF is introduced to estimate fractional derivatives of Caputo. And a space–time RKFs collocation scheme is derived for the multi‐term Caputo time FDEs. The accuracy of the present numerical technique is indicated by employing several experiments.

中文翻译:

分布函数扩散方程的基于核函数的方法

在这项工作中,我们通过将理论应用到再生核函数(RKF)上来解决分布式阶扩散方程(DODE)。经典的数值正交公式用于将DODE近似为多项Caputo分数阶扩散方程(FDE)。引入了Mittag-Leffler RKF来估计Caputo的分数导数。并针对多时元Caputo时间FDE导出了时空RKF配置方案。通过采用几个实验表明了本数值技术的准确性。
更新日期:2020-10-19
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