Two-grid Method of Expanded Mixed Finite Element Approximations for Parabolic Integro-differential Optimal Control Problems

Yan-ping CHEN, Jian-wei ZHOU, Tian-liang HOU

Acta Mathematicae Applicatae Sinica(English Series) . 2025, (4): 1106 -1129 . DOI: 10.1007/s10255-024-1099-2