Wang Zhen
School of Mathematical Sciences, Jiangsu University, Zhenjiang, 212013 Jiangsu China.
Commun Appl Math Comput. 2023 Apr 11:1-25. doi: 10.1007/s42967-023-00257-x.
In this paper, a class of discrete Gronwall inequalities is proposed. It is efficiently applied to analyzing the constructed L1/local discontinuous Galerkin (LDG) finite element methods which are used for numerically solving the Caputo-Hadamard time fractional diffusion equation. The derived numerical methods are shown to be -robust using the newly established Gronwall inequalities, that is, it remains valid when . Numerical experiments are given to demonstrate the theoretical statements.
本文提出了一类离散的格朗沃尔不等式。它被有效地应用于分析所构造的用于数值求解卡普托 - 哈达玛时间分数阶扩散方程的L1/局部间断伽辽金(LDG)有限元方法。利用新建立的格朗沃尔不等式证明了所推导的数值方法是稳健的,即当……时仍然有效。给出了数值实验来验证理论结果。