Complete n-equi-partite graphA (p, q)-graph is a graph with p vertices and q edges. There are only five non-isomorphic connected (5,5)-graph: bull graph H-1, cricket graph H-2, (3,2)-tadpole graph H-3, (4,1) tadpole graph H-4, 5-cycle graph H-5. Let G be a graph....
美 英 un.连通图;连接图 网络连通图形;相连图脉;组合数学 英汉 网络释义 un. 1. 连通图 2. 连接图
The number of vertices of degree 5 in a contraction-critically 5-connected graph An edge of a 5-connected graph is said to be 5-contractible if the contraction of the edge results in a 5-connected graph. A 5-connected graph with no 5-co... KIT Ando - 《Discrete Mathematics》 被引量...
in this paper the following result is proved: If G is a 3-connected tough graph on n vertices with vertex connectivity K such that d(x) d(y) d(z) d(w) K fo... 贺东奇 - 《系统科学与数学》 被引量: 5发表: 2000年 On the number of Hamiltonian cycles in triangulations It is prov...
Is there a walk aroundmgiven vertices in ak-connected graph? G.T.N., 9 (5) (May 1980), p. 3 [6] W.T. Tutte A theorem on planar graphs Trans. Am. Math. Soc., 8 (1956), pp. 99-116 View in Scopus Google Scholar [7] ...
For each fixed integer t≥1, on block graphs with exactly t blocks, we first show that the CpC problem is NP-hard when (1) w(v)=1, for all vertices v, and l(e)∈{1,2}, for all edges e, and (2) w(v)∈{1,2}, for all vertices v, and l(e)=1, for all edges e, ...
You are given a simple undirected graph with N vertices numbered 1 to N and M edges numbered 1 to M. Edge i connects vertex ui and vertex vi.Find the number of connected components in this graph. 输入描述: NM u1v1 u2v2 ... umvm 输出描述: Print the answer. 样例1: input: 5 3 1...
We show that a k -edge-connected graph on n vertices has at least spanning trees. This bound is tight if k is even and the extremal graph is the n -cycle with edge multiplicities . For k odd, however, there is a lower bound , where . Specifically, and . Not surprisingly, c 3 is...
Graph file: For each amplicon, a text file describing the graph and predicted copy count. Cycles file: For each amplicon: a text file describing the list of simple cycles predicted. Cycle view: A web interface with operations for visualizing and modifying the simple cycles. ...
This dynamic graph is also used on some methods directly on Edges: node_a.eccentricity# => 7node_a.neighborhood# => #<Connected::GenericGraph:0x00007fd35...node_a.neighborhood.vertices.map(&:name)# => ["b", "c"] Nearly all the above capabilities are available via modules that can ...