连通有向图 meaning in Chinese

connect-directed graph
connected directed graph

It is proved that seymour ' s second out - degree conjecture holds if and only if it holds for strong connected digraphs
证明了seymour二出度猜想成立等价于该猜想在强连通有向图上成立。
Using matrix theory , we present a sharp upper bound on the spectral radius of digraphs and strongly connected diagraphs
摘要利用矩阵理论，给出了简单有向图的谱半径可达上界和强连通有向图的谱半径上界。
In the 3rd chapter , according to the requirement of the representation of the product information , a new data model - xoem ( extensive object exchange model ) is presented because of the lack of the data model , which faces to the xml . the formal description of the xoem and its corresponding algebra are put forward , and then the data model is applied to the xml document on the web . in the 4th chapter , the method of the uniform information representation is presented according to the requirement of the description and identification of the diversified heterogeneous product information
在第三章中，结合产品信息网上表达的需求，针对www环境下缺乏面向产品信息xml描述的web数据模型的情况，提出了基于带根连通有向图的一种新的数据模型即可扩展对象交换模型xoem ( extensiveobjectexchangemodel ) ，给出了该模型严格的形式化描述，并将该模型应用到含有xml半结构化数据的web中。