ANALYSIS OF A MULTI-TERM VARIABLE-ORDER TIME-FRACTIONAL DIFFUSION EQUATION AND ITS GALERKIN FINITE ELEMENT APPROXIMATION

Huan Liu, Xiangcheng Zheng, Hongfei Fu

Journal of Computational Mathematics . 2022, (5): 814 -834 . DOI: 10.4208/jcm.2102-m2020-0211