A multi-domain spectral method for time-fractional differential equations
A multi-domain spectral method for time-fractional differential equations
复制标题
时间分数阶微分方程的多域谱方法
DOI:
10.1016/j.jcp.2014.10.016
复制
发表时间:
2015-07
影响因子:
4.1
通讯作者:
Jan S. Hesthaven
中科院分区:
文献类型:
--
作者:
Feng Chen;Qinwu Xu;Jan S. Hesthaven
This paper proposes an approach for high-order time integration within a multi-domain setting for time-fractional differential equations. Since the kernel is singular or nearly singular, two main difficulties arise after the domain decomposition: how to properly account for the history/memory part and how to perform the integration accurately. To address these issues, we propose a novel hybrid approach for the numerical integration based on the combination of three-term-recurrence relations of Jacobi polynomials and high-order Gauss quadrature. The different approximations used in the hybrid approach are justified theoretically and through numerical examples. Based on this, we propose a new multi-domain spectral method for high-order accurate time integrations and study its stability properties by identifying the method as a generalized linear method. Numerical experiments confirmhp-convergence for both time-fractional differential equations and time-fractional partial differential equations.
登录
查看更多内容
DOI:
10.1137/140993697
发表时间:
2014-07
期刊:
SIAM J. Sci. Comput.
影响因子:
--
作者:
L. Fatone;D. Funaro
通讯作者:
L. Fatone;D. Funaro
影响因子:
3
作者:
J. T. Tenreiro Machado;Alexandra M. S. F. Galhano;Juan Trujillo
通讯作者:
J. T. Tenreiro Machado;Alexandra M. S. F. Galhano;Juan Trujillo
影响因子:
2.9
作者:
Butcher, JC
通讯作者:
Butcher, JC
DOI:
10.1137/130918174
发表时间:
2013-04
期刊:
SIAM J. Numer. Anal.
影响因子:
--
作者:
Qinwu Xu;J. Hesthaven
通讯作者:
Qinwu Xu;J. Hesthaven
DOI:
10.1016/j.physa.2005.02.047
发表时间:
2005-08
影响因子:
3.3
作者:
V. E. Tarasov;G. Zaslavsky
通讯作者:
V. E. Tarasov;G. Zaslavsky