Xie , HuiLiu , LiZhai , ChuanleiXu , Xuejun and Yong , Heng. (2024). A Conservative and Positivity-Preserving Method for Solving Anisotropic Diffusion Equations with Deep Learning. Communications in Computational Physics. 35 (2). 467-497. doi:10.4208/cicp.OA-2023-0180