Starting in 2000 Wei began working with Christina Sormani on limits of manifolds with lower Ricci curvature bounds using techniques of Jeff Cheeger and Tobias Colding, particularly Kenji Fukaya's metric measure convergence.
Northern Wei | Cao Wei | Wei | Emperor Xiaozhuang of Northern Wei | Emperor Xiaowu of Northern Wei | Emperor Xianwen of Northern Wei | Emperor Xiaowen of Northern Wei | Wang Wei (8th-century poet) | Wang Wei | Lee Chong Wei | Emperor Xuanwu of Northern Wei | Emperor Wencheng of Northern Wei | Emperor Taiwu of Northern Wei | Emperor Jiemin of Northern Wei | Eastern Wei | Wu wei | Wei Jingsheng | Wei Chueh | Tang Wei | Dong Cheng Wei | Chen Wei | Zhao Wei | Wu Wei | Wei (state) | Wei Quanfeng | Wei Qing | Wei Chen | Sung Wei-I | Qiu Wei | Liu Wei |