查询词典 partially ordered set

The second motivation is the replacement of a Boolean algebra of sets by the distributive lattice of filters of a finite partially ordered set.

一个自然的问题是：能否给出射影空间中放置不同维数的线性族类似的公理体系？

Birkhoff, every finite distributive lattice is isomorphic to the lattice of all filters of a finite partially ordered set.

由G.Birkhoff的一个基本定理，每个有限分配格同构于一个有限偏序集所有滤子的格。

This work is done in many ways, the most famous and representative are the following i one is poset matroid that comes from replacing the underlying set of a matroid by a partially ordered set; another is greed...

因此，本文采用与前人不同的思维方式，利用偏序集理论，在保持拟阵某些原有性质的基础上，对两种新理论给予充实和完善。

In Section 3, we study the relation between subsets and filters of partially ordered set 〓. We also obtain some basic results on dependence.

第3节研究了偏序集的子集和滤子之间的关系，我们得到了一些基本的结论，这些都是为后面的主要结论做准备。

The directed graph or transitive graph is constructed by transitivity of partially ordered set.

研究铁路车站作业计划编制过程中，如何编制调机运用计划的关键问题。

Finite rank functions of closure spaces on partially ordered set ;2. Applying theory of partially ordered set s to study data envelopment analysis;3. Using theory of partially ordered set s to study data envelopment analysis

首先应用偏序空间理论，提出了井下测量对象的数据库论域命题，并论证了该命题的成立；然后提供了井下测量对象的NF2嵌套数据模型和测量对象的存储数据结构。

Since a partially ordered set has longitudinal and lateral structures, the characterization of poset matroids by rank function is much more complicated than that of the classical matoid.

因为一个偏序集有横向与纵向的结构，因此我们用秩函数来刻画偏序集拟阵要比刻画经典拟阵要复杂得多，但还是有章可寻。

The model is based on a collection of a divisional terrain data defined as simplicial complexes arranged into a partially ordered set by time and space.

模型把子区域地形几何数据定义为单纯复合形集，按地形变化时间顺序和空间关系组织成一个偏序集。

Firstly,different control strategies for sensor management are modeled by the real language measure. The legal behavior of control strategy modeled by FSA can generate a partially ordered set of controlled languages. Then an identification method of the language measure parameters based on an FSA model is proposed. The language measure creates a total ordering on the performance of the controlled languages.

首先，建立传感器管理控制策略的有限状态自动机模型，通过对可控制事件的非使能设定，描述不同控制策略；提出语言测度参数的递归估计方法与停止规则，并根据有限状态自动机模型产生语言的测度获得各种传感器控制策略的性能指标。

For detail,we studied the Incidence Algebra I defined by finite Partially Ordered Set X,and sheaf F based on the topology T_x defined by the partial order;By studying the relation between finite module category mod I and the sheaf category Sh_x A,we proved that they are equivalent.

特别的，对给定的有限偏序集X确定的Incidence代数Ⅰ，及由X的序关系定义的拓扑结构T_X上的层F，通过考查有限模范畴modⅠ与层范畴Sh_XA之间的关系，证明了Incidence代数上的模范畴与层范畴的等价性。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。