negative curvature meaning in English
负曲率
Examples
- Conformal deformations for prescribing scalarcurvature on riemannian manifolds with negative curvature
负曲率流形上给定数量曲率的共形形变 - The manufacture system of filament winding ( fw ) and fiber placement ( fp ) is the one of advanced equipment for frp products . it can be used to produce the products of the positive curvature gyration bodies , such as container cylinder , oil tank , tube , orb , cone , assembled body and so on . furthermore , it is more suited to machining some products of the complex bodies such as the surfaces of the negative curvature gyration bodies , the shell components which have slots and reinforced tendons
纤维缠绕/铺放联合制造系统是纤维增强塑料( frp )制品生产的先进制造装备之一，可用于制造如圆筒容器、储罐、管、球、锥形体或组合形体等正曲率回转体的制品，更适用于制造含有负曲率的回转体表面、具有深槽、加强筋的壳体构件等外形相对复杂的纤维增强塑料制品。 - In chapter 3 , we will estimate the first eigenvalue of laplacian from below on manifolds with a little negative curvature . in chapter 4 , we will prove the existence of bounded nontrivial harmonic functions on some classes of complete manifolds which will generalize the results of s . y . cheng ' s
在第三章，我们将给出具有小负曲率的流形上laplace算子的第一特征值的下界估计；第四章，我们会给出一类完备非紧流形上非平凡的有界调和函数的存在性，推广了s . y . cheng的结果。