查询词典 combinatorial dimension

These sets are interesting subsets of natural number in combinatorial number theory, ergodic theory and topological group.

这些集合是人们在组合数论、遍历理论以及拓扑群中感兴趣的重要的自然数子集。

The overexpression and combinatorial expression of genes involved in ergosterol biosynthesis are not only useful to construct strains with high ergosterol content, but also present a putative technical process that can be used to microbiology breeding.

上述研究不但获得了高麦角甾醇和较高生物量的酵母菌株，同时也为具有重要应用价值的微生物育种探索了可以借鉴的新方法和新技术。

These results indicated that the presented method could be applied efficiently to the solution-phase combinatorial chemistry based on Williamson etherification.

结果表明该方法可高效率地用于基于Williamson醚化反应的液相组合化学合成。

Then combined with the concept of solution backboens of combinatorial optimization problems, we design a bacbkone-based extremal evolutionary algorithm.

应用新的变量适应度定义，设计了基于模式的极值进化算法。

A combinatorial identity is obtained:=:~z 2r扟32-rn-iJ As main result of this paper, in section two, the convolution梩ype identities emerge from our discussion about Lagrange formula whom in author 憇 view can be taken as the inherent characteristic of Lagrange formula but have been ignored fOi so long time.

第一章对拉格朗日反演在Riordan群理论中的应用进行了介绍，证明了一个组合等式：第二章通过对拉格朗日反演定理本身的分析，得到一个对任意的形式幂级数都适用的三个拟卷积公式，这些公式体现了任意能在零点解析的函数的内在性质。

We demonstrate that coexpression of the Forkhead protein FoxC2 and the Ets protein Etv2 induces ectopic expression of vascular genes in Xenopus embryos, and that combinatorial knockdown of the orthologous genes in zebrafish embryos disrupts vascular development.

实验显示，Forkhead蛋白FoxC2和Ets蛋白Etv2的共同表达，能够诱使非洲爪蟾胚胎血管基因的易位表达。

Our studies mainly focus on the free groups with finite ranks . Free groups with finite ranks are the fundamental subjects of combinatorial group theory, and they have central importance for the studies of both topology and algebra.

我们研究比较多的是有限秩的自由群，有限秩自由群是组合群论的中心课题，是一个在拓扑学及代数学上都具有重要意义的研究对象，获取有关这些自由群的结构的信息的一个主要方法是研究其上的各种自同构作用。

Generalized pseudorandom punctured binary sequence pair along with the transformation properties and combinatorial limited conditions are presented.

首先推导出二元序列偶的周期相关理论界，这为进一步研究具有良好相关特性的二元序列偶集提供了理论基础。

In this thesis, by employing generating function technique, some new combinatorial identities have been established.

本文利用发生函数理论建立了一系列新的组合恒等式，并且利用发生函数方法讨论了一些级数的取整值问题以及某些多项式在有理点的取值问题。

The graph coloring problem is a widely studied combinatorial optimization problem.

图的着色问题是一个被广泛研究的组合优化问题。

He became prime minister in 1997 and won international acclaim for his role in the Northern Ireland peace process.

他在1997年成为总理，并且因为在北爱尔兰的和平进程中发挥的作用受到国际社会的赞许。

Mixed Page Sorting Method Using the cuttable user model, this thesis proposes a mixed page sorting method by using cutted user model in server-side and complete user model in client-side.

隐私分级利用的混合式页面排序方法针对个性化搜索中搜索结果排序的问题，本文利用隐私可控开放的用户偏好模型，提出一个在客户端和服务器端分步进行的隐私分级利用的混合式页面排序方法。