convexity

n.

凸状，凸面；

变形

复数：convexities

英英释义

convexity[ kən'veksiti ]

n.

the property possessed by a convex shape

同义词：convexness

a shape that curves or bulges outward

同义词：convex shape

双语例句

用作名词(n.)

The orbit of the moon around the sun is convex.
月亮绕太阳的轨道是凸状的。

This is in nature the result of convexity of the cost function.
这在本质上是由于成本函数的凸性决定的。

Weak duality theorem is established under generalized convexity conditions.
在广义凸性条件下,建立了弱对偶性定理。

权威例句

1. Convexity can be solved by positivity.

凸性可以通过正性来解决。

2. This paper is aimed to study the KKM theory and its applications in general topological spaces without any convexity structure.

本文的主要目的是在不具任何凸结构的一般拓扑空间中研究KKM理论及其应用。

3. This paper discusses several definitions on convexity of functions and proves that under some conditions these definitions are equivalent.

讨论了几个关于函数凸性刻划的定义，证明了在一定条件下，上述定义的等价性。

4. In the second we give the necessary and sufficient conditions for strict convexity of power function of exponential family in the discrete case.

在第二个问题中，我们给出了在离散的情形下，指数族势函数严凸的充分必要条件。

5. In the second chapter, by using generalized R-KKM mappings, we obtain a new coincidence theorem for admissible set-valued mappings in topological spaces without any convexity structure.

第二章，利用广义R-KKM映射，在不具任何凸结构的一般拓扑空间中证明了一个新的关于容许集值映射的叠合定理。

6. Many topological spaces with abstract convexity structure are all FC-spaces.

许多具有抽象凸结构的拓扑空间都是FC-空间。

7. Preconvex functions are studied by applying nearly convexity of sets in this paper. Under weaker assumptions, some equivalent conditions for preconvexity are derived.

用集合的近似凸性研究函数的预不变凸性，在较弱的假设下获得了预不变凸性的一些等价条件。

8. Calculation case shows that in the given initial value and restraints, convexity gap model can lessen the exposure position of interest rate risk and increase yields.

计算实例表明，凸度缺口模型对于给定的初始值和约束条件，可以较好地减少利率风险的暴露头寸和提高收益；

9. Vector optimization problems with control parametra are considered under generalized convexity condition.

在广义凸条件下，研究了带控制参量的向量优化问题。

10. Under the convexity assumption on objective function, the globle convergence of this method is proved.

在目标函数为凸的条件下，证明了该算法的全局收敛性。

11. Some important properties are proved for C-curves of degree five, such as convexity preserving and the variation diminishing (V-D) properties.

在收敛性的基础上，还证明了五次C-曲线的一些重要性质，例如变差缩减性和保凸性。

12. The paper mainly introduces the calculating equation for piston skirt molded lines, the drawing of piston, and the design for convexity mother plate molded lines.

重点介绍了计算活塞裙部型线方程，给出了从图纸到中凸靠模板曲线板型线设计的方法。

13. The relations among these uniform convexity and uniform smoothness, very smoothness, uniform extreme smoothness and extreme smoothness are studed.

讨论了这些凸性与一致光滑、非常光滑、一致极光滑、很极光滑等光滑性之间的关系。

14. In addition, under the generalized convexity and generalized monotonicity, solution existence for implicit vector equilibrium problems is investigated.

并在广义凸性和广义单调性的条件下，给出了隐向量均衡问题的解的存在性。

15. A set of inequality constraint conditions of the strength parameters is derived from the convexity of the strength criterion, which is expressed in a quadric form in terms of stress components.

本文从一般强度理论出发导出各向异性材料应力形式张量多项式强度理论，根据强度准则的外凸性得到应力二次形式强度准则的强度参数限制条件。

16. Based on the convexity of generation cost functions, a new 0-1 mixed-integer programming model of this problem via piecewise-linear approximation is constructed.

针对该问题中机组发电费用为凸函数的特点，利用分片线性逼近技术建立了一种新的0-1线性混合整数规划模型。

17. In the dissertation the hedging theory is analyzed, the common duration-based hedging strategy is commented on and thus the conception of convexity bias is introduced.

论文对套期保值的理论进行分析，对常用的基于久期的套期保值策略进行评述，从而引出凸度偏移的概念。

18. First, the notions of the measure of noncompactness and condensing set-valued mappings were introduced in locally FCuniform spaces without convexity structure.

首先在没有凸性结构的局部FC-一致空间内引入了非紧性测度和凝聚集值映象概念。

19. Then, we define a class of tangent cone F convexity in terms of the tangent cone directional derivative, and prove the sufficient optimality conditions for (VP).

然后利用正切锥方向导数定义一类正切锥F凸函数类，并给出了（VP）正切锥真有效解的充分性条件；

20. Objective To investigate the clinical significance of dural tail sign in convexity meningioma.

目的探讨凸面脑膜瘤脑膜尾征的临床意义。

21. This paper uses some indexes such as PVBP, duration and convexity to measure volatilities of government bond prices in Shanghai Stock Exchange and Interbank Market.

本文选用了基点价格值、久期与凸性等指标对上海证券交易所与银行间市场国债价格的波动性进行测度。

22. The accuracy along with numerical convexity and smoothness of LUT will influence the final circuit design greatly.

其精度及数学上的凸特性和平滑程度对电路最终的设计结果有较大的影响。

23. The fuzzy numbers with bounded support and strictly fuzzy convexity is introduced and the couple parametric representation of fuzzy numbers is given.

介绍具有有界支撑且严格模糊凸的模糊数，并且给出模糊数的双参数表示。

24. Based on geometry and convex set methods, this paper gives systemically the definitions of global and local convexity for planar closed parametric curve, and proves the two definitions are equivalent.

从几何和凸集的角度，系统地给出了平面闭参数曲线全局凸和局部凸定义，并且证明了这两个定义是等价的。

25. Based on geometry and convex set methods, this paper gives systemically the definitions of global and local convexity for planar closed parametric curve, and proves the two definitions are equivalent.

从几何和凸集的角度，系统地给出了平面闭参数曲线全局凸和局部凸定义，并且证明了这两个定义是等价的。

26. ridge convexity

沟底凸埂高度

-- 来源 -- 英汉 - 翻译参考[网络]

27. This completes the proof of the convexity theorem.

这就完成了凸定理的证明。

-- 来源 -- 英汉 - 辞典例句

28. The convexity of the seed capsule is of decisive importance in host selection.

种子囊的突起对寄主的选择起着决定性的作用。

-- 来源 -- 英汉 - 辞典例句

29. holomorphic convexity

正则凸性

-- 来源 -- 英汉 - 翻译参考[网络]

30. Characterized by convexity; protuberant.

突起的，凸状的有凸出的特征的；突出的，隆起的

-- 来源 -- 英汉 - 短句参考

31. strict convexity

严格凸性

-- 来源 -- 英汉 - 翻译参考[网络]

32. convex on one side and concave on the other with the convexity being greater than the concavity.

一边凸一边凹，而且凸度比凹度大。

-- 来源 -- 汉英 - 翻译参考

33. rational convexity

有理凸性

-- 来源 -- 英汉 - 翻译参考[网络]

34. concave on one side and convex on the other with the concavity being greater than the convexity.

一边凹一边凸，而且凹度比凸度大。

-- 来源 -- 汉英 - 翻译参考

35. logarithmic convexity

对数凸性

-- 来源 -- 英汉 - 翻译参考[网络]