Numerical Solution of Variable-Order Time Fractional Weakly Singular Partial Integro-Differential Equations with Error Estimation

被引:15
作者
Dehestani, Haniye [1 ]
Ordokhani, Yadollah [1 ]
Razzaghi, Mohsen [2 ]
机构
[1] Alzahra Univ, Fac Math Sci, Dept Math, Tehran, Iran
[2] Mississippi State Univ, Dept Math & Stat, Starkville, MS 39762 USA
关键词
variable-order fractional partial integro-differential equations; weakly singular kernel; Legendre-Laguerre functions; pseudo-operational matrix; CONVERGENCE; DYNAMICS; VAN;
D O I
10.3846/mma.2020.11692
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
In this paper, we apply Legendre-Laguerre functions (LLFs) and collocation method to obtain the approximate solution of variable-order time-fractional partial integro-differential equations (VO-TF-PIDEs) with the weakly singular kernel. For this purpose, we derive the pseudo-operational matrices with the use of the transformation matrix. The collocation method and pseudo-operational matrices transfer the problem to a system of algebraic equations. Also, the error analysis of the proposed method is given. We consider several examples to illustrate the proposed method is accurate.
引用
收藏
页码:680 / 701
页数:22
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