中国科学院数学与系统科学研究院期刊网
POSITIVITY-PRESERVING SCHEME FOR DIFFUSION EQUATION WITH SECOND ORDER TIME ACCURACY ON DEFORMDE MESHES
Xie Chenyuan, Lan Bin, Yang Dexian, Li Haiyan
Mathematica Numerica Sinica . 2024, (1): 38 -46 .  DOI: 10.12286/jssx.j2022-1041