AN IMPROVED TWO-GRID TECHNIQUE FOR THE NONLINEAR TIME-FRACTIONAL PARABOLIC EQUATION BASED ON THE BLOCK-CENTERED FINITE DIFFERENCE METHOD

Xiaoli Li, Yanping Chen, Chuanjun Chen

Journal of Computational Mathematics . 2022, (3): 453 -471 . DOI: 10.4208/jcm.2011-m2020-0124