有根树

该归档文件很可能创建为现有文件系统树的直接（局部）映像，所以自然可以用有根树表示

This archive was probably created as the direct ( partial ) image of an existing filesystem tree , and is naturally represented by the rooted tree

运用EM算法构造并证明Jukes-Cantor模型下含缺损数据的DNA序列构建有根树（无根树）的最佳分枝长度估计定理；

To construct and to prove , using EM algorithm , the theorems of estimating best branches of DNA sequences having censored data for Jukes-Cantor Model under the conditions of rooted tree and un rooted tree respectively ;

提出了有限元方法和数值积分相结合获得多柔体系统集中参数模型的近似方法，并基于lagrange方程，对有根树型拓扑结构的多柔体系统进行建模。

This paper presents an approximate method of flexible multibody system lumped parameter model combined finite element with numerical integration . Based on Lagrange 's method , the flexible multibody dynamics model of rooted topological tree is built .

有根树及在直销中的应用

The Rooted Trees and Applications in the Direct - Sales

基于有根树的多点传送密钥分配技术分析

Analysis of the rooted-tree based multicast key distribution technique

有根Cayley树上奇偶马氏链场的若干强极限定理

Some Strong Limit Theorems of Even-odd Markov Chains on Rooted Cayley Trees

关于多重有向根树的一种乘法运算

A Multiplication Operation between Multiple Directed Rooted Trees

这篇文章得到了有根平面树的节点剖分的色和方程。

In this paper , the chromatic sum equation of rooted planar trees with vertex partition is obtained .

另外，计算了这种运算结果（多重有向根树）的分支个数及每个分支的树高与树宽。

Furthermore , they calculate the number of the components as well as the tree-width and tree-height of each of such components .

在对以上知识研究的基础上证明了正常冠状系统的R-旋转图至少包含两棵有向根树。

In this paper , the author will prove that the R-rotation graph of an elementary coronoid system is a directed forest containing at least 2 trees .

有根完全多级树与环分配

Complete rooted trees of rank K and circular distribution

有根完全多级树的计数

Enumeration of rooted complete trees of rank K

如果一个人不停地向前走，他可以碰到一个茂密的树林，里面有根高的树，还有很深的湖。树林一直伸展到蔚蓝色的、深沉的海那儿去。巨大的船只可以在树枝底下航行。

Those who travelled beyond its limits knew that there was a noble forest ， with lofty trees ， sloping down to the deep blue sea ， and the great ships sailed under the shadow of its branches .