有向圈的英文

• directed cycle

• 有    5年 fifteen years
• 向    direction
• 圈    circle; ring
• 有向    calligraphic display device
• 方向圈，地平经圈    azimuth circle
• 有向边    directed edge
• 有向的    directed
• 有向段    directed segment
• 有向弧    directed arc
• 有向积    vectorial multiplication
• 有向迹    directed trail
• 有向集    directed set
• 有向交    oriented intersection
• 有向角    directed angle
• 有向链    directed chain
• 有向量    directed quantity
• 有向球    oriented sphere
• 有向群    directed group
• 有向树    directed tree
• 有向图    digraph(directed graph); directed graph (digraph); directed graph undirected graph; oriented graph
• 有向网    directed net
• 有向系    directed system; generalized sequence
• 有向线    directed line
• 有向元    directed line; oriented element
• 有向圆    oriented circle

• A uniquely pancyclic digraph is a digraph which has exactly one directed cycle of each length l , for 3 l v , where v is the number of vertices of the digraph
  一个唯一泛圈有向图是一个定向图，且对3 l v的每个l ，它恰好有一个长为l的有向圈，这里的v表示有向图的顶点数。
• This thesis contributes to directed cycles in digraphs , including the relations between the girth g ( d ) ( length of the shortest directed cycle ) of d and degrees of vertices of d and between the shortest directed cycle of d and the binding number of d , among which vertex - transitive digraphs are studied in detail
  本篇论文主要研究有向图中的有向圈，讨论有向图中的围长g ( d ) (最短有向圈的长度)与图的顶点度以及结合数之间的关系，并重点分析了点可迁图类。