搜索结果: 1-1 共查到“偏微分方程 positive curvature”相关记录1条 . 查询时间(0.125 秒)
There are few known examples of manifolds with positive sectional curvature in Riemannian
geometry. Until recently, they were all homogeneous spaces [Be, Wa, AW] and biquotients [E1,
E2, Ba], i.e., ...