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- negative curvature minima 负曲率极值点
- Cosmologists call negative curvature models of the universe open universes . 宇宙学家将负曲率的宇宙模型称作 开放的宇宙。
- The simplest space with negative curvature is called hyperbolic space, which is defined as space with constant negative curvature. 最简单的负曲率空间称为双曲空间,这个空间处处都有相同的负曲率。
- To allow the negative curvature direction and avoid the Maratos effect, we add second correction step to trust region trial step and employ nonmonotone technique in line search. 为允许负曲率方向及克服Maratos效应,我们在信赖域试探步中加入二阶校正步,线搜索时采用非单调技术。
- In this thesis, we engage in studying the algorithms which combine the negative curvature direction and nonmonotone technique to solve the unconstrained optimization. 本文研究的就是同时使用负曲率方向和非单调技术解无约束优化问题的算法。
- directions of negative curvature 负曲率方向
- 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
- We have pared down our expenses to a bare minimum. 我们已最大限度地削减了开支。
- When the Hessian matrix is indefinite,we consider negative curvature direction as search direction; 当最优化问题的海赛阵不正定时,由于算法的分解保留了海赛阵的负特征值,因此可用负曲率方向作为搜索方向;
- The class needs a minimum of 6 pupils to continue. 这个班最低限度要六个学生才可以继续办下去。
- The exponent of each item was discovered based on the optimizing the diagram factor, minimum radius of the cam curvature, maximum positive and negative accelerations of valve. 对于每一项的指数,则采用对气门运动加速度、丰满系数、最小曲率半径等优化的方法来寻求。
- A withdrawal limit of $200; no minimum age limit. 提款数量最多不超过200美元; 没有最低年龄限制。
- This game requires a minimum of three players. 这个游戏至少需要三个人才可以玩。
- The answer to my request was in the negative. 对我的请求的答复是否定的。
- The minimum wage is 4.25 dollars an hour. 最低工价为每小时四点二五美元。
- His answer to my request was a negative. 我的请求遭到了他的拒绝。
- A maximum or minimum value of a function. 极大值,极小值函数的最大值或最小值
- The tests for hepatitis were negative. 肝炎检查结果是阴性。
- Their criticism was not negative. 他们的批评并不是负面的。
- Do a blow-up of this corner of the negative. (对某事的)详尽的报道。