An Effective Algorithm for Delay Fractional Convection-Diffusion Wave Equation Based on Reversible Exponential Recovery Method
An Effective Algorithm for Delay Fractional Convection-Diffusion Wave Equation Based on Reversible Exponential Recovery Method
复制标题
基于可逆指数恢复法的延迟分数对流扩散波方程的有效算法
DOI:
10.1109/access.2018.2889735
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Maohua Ran
中科院分区:
文献类型:
--
作者:
Tingyue Li;Qifeng Zhang;Wahidullah Niazi;Yinghong Xu;Maohua Ran
In this paper, we investigate a linearized finite difference scheme for the variable coefficient semi-linear fractional convection-diffusion wave equation with delay. Based on reversible recovery technique, the original problems are transformed into an equivalent variable coefficient semi-linear fractional delay reaction-diffusion equation. Then, the temporal Caputo derivative is discreted by using <inline-formula> <tex-math notation="LaTeX">$L_{1}$ </tex-math></inline-formula> approximation and the second-order spatial derivative is approximated by the centered finite difference scheme. The numerical solution can be obtained by an inverse exponential recovery method. By introducing a new weighted norm and applying discrete Gronwall inequality, the solvability, unconditionally stability, and convergence in the sense of <inline-formula> <tex-math notation="LaTeX">$L_{2}$ </tex-math></inline-formula>- and <inline-formula> <tex-math notation="LaTeX">$L_{\infty }$ </tex-math></inline-formula>- norms are proved rigorously. Finally, we present a numerical example to verify the effectiveness of our algorithm.
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影响因子:
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