共性几何中的曲率计算

It is customary to call the function function defined on $U$ by $\nabla_{\frac{\partial}{\partial x_i}}\frac{\partial}{\partial x_j}=\sum\limits_k\Gam
posted @ 2021-04-01 17:14  Minimal_Cone  阅读(130)  评论(0)  编辑  收藏  举报