查询词典 countable subadditivity

Uncertainty theory is a branch of mathematics based on normality, monotonicity, self-duality, countable subadditivity, and product measure axioms.

不确定理论是基于规范性、单调性、自对偶性、可列次可加性和乘积测度公理的数学系统，是研究不确定现象的数学分支。

The main results in this chapter are as follows:Theorem 2.1.2Let〓be a countable atomic model.If〓is infinite,then〓is a countable atomic model.

本章的主要结果有：定理2.1.2若〓是可数的原子模型，〓不是〓的代数公式，则〓也是可数的原子模型。

To obtain the function and imbedding properties about relative countable tightness spaces,in this paper the question whether the relative countable tightness space can be adversely preserved by a closed map is studied by means of function and imbedding theories.

为了得到相对可数紧度空间的映射及嵌入性质，借助映射方法和紧化理论讨论了相对可数紧度空间被闭映射逆保持问题及嵌入紧空间问题，得到了相对可数紧度空间被闭映射逆保持的一个充分条件、局部紧的可数紧度空间可嵌入紧空间的几个充分条件以及某一类局部紧空间在任意紧化中不具有可数紧度等结果。

Used before an un countable noun to refer to a countable meaning of noun.

用在不可数名词前，使该名词作为可数名词的用法。

In chapter 2, we prove that sn—first countable spaces are preserved by the finite subsequence-covering mappings.By this result, we prove that the finite subsequence-covering, quotient mappings preserve g—metrizable spaces, also prove that the finite subsequence-covering, closed mappings preserve sn—metrizable spaces, g-metrizable spaces, metrizable spaces, point-countable bases.

在第二章中，我们主要证明了有限子序列覆盖映射保持sn-第一可数空间，作为它的应用，又证明了有限子序列覆盖、商映射保持g-第一可数空间，也证明了有限子序列覆盖闭映射保持sn-度量空间，g-度量空间，度量空间，点可数基。

Theorem 2.1.11 Let T be〓-categorical.Then for any formula〓,fractiontheory〓is either〓-categorical,or has exactly countably many countable models up toisomorphism.Moreover,all these countable models are〓-homogeneous.

定理2.1.11 若T是〓范畴理论，则任给公式〓，分式理论〓或者是ω-范畴理论，或者只有可数多个可数模型并且这些可数模型都是可数地齐次模型。

So people want to prove which asset classes are likely to satisfy the subadditivity.

因此人们想证明在什么样的情况下VaR满足次可加性。

Moreover, the increasing returns to scale and subadditivity of cost that characterize natural monopoly will be easily destroyed.

这便违背自然垄断产业多元化改革实现厂商效率和社会福利水平增进的初衷。

Subadditivity is a basic property for a risk measure, because it ensures the diversificationprinciple of portfolio theory and it is a basic condition for the problem of portfolio decision-making.

而次可加性是任何一个风险度量必须满足的重要性质，它刻画了现代投资组合理论中的风险分散化原则，是资产组合决策问题的一个基本条件。

Since VaR method is absent of general subadditivity and description to tail information, a new risk measure framework is proposed in recent years, it is coherent risk measure.

由于VaR不具有普遍的次可加性和缺乏对尾部信息的描述，近几年来，学术界提出了新的风险度量框架——一致性风险度量，并在这种框架下，发展了多种风险度量技术，谱风险测度便是其中之一。

Bob Eckert has been chairman and chief executive of Mattel for eight years.

美泰董事长兼首席执行官鲍勃·埃克尔特在任已8年。

The outlook for honors and disgraces carries on and surpasses the traditional outlook for honors and disgraces theoretically, and carries on and develops the theory of construction of socialist mora...

社会主义荣辱观的提出在理论上是对传统荣辱观的一次继承和超越，是对社会主义道德建设理论的继承和发展，在实践上有利于形成良好的社会风尚。