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检索条件"机构=School of Softsware"
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Degree Conditions on Copies of Forests in Graphs
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Journal of the Operations Research Society of China 2023年 第3期11卷 667-672页
作者: Xiao-Dong Chen Shuai-Jun Chen Ming-Chu Li school of Mathematics Liaoning Normal UniversityDalian116029LiaoningChina College of Science Liaoning University of TechnologyJinzhou121001LiaoningChina school of softsware Dalian University of TechnologyDalian116024LiaoningChina
For a graph G,letμ(G)=min{max{d(x),d(y)}:x≠y,xy∉E(G),x,y∈V(G)}if G is non-complete,otherwise,μ(G)=+∞.For a given positive number s,we call that a graph G satisfies Fan-type conditions ifμ(G)≥s.Supposeμ(G)≥s,t... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Spanning Trees with Few Leaves in Almost Claw-Free Graphs
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Journal of Mathematical Research with Applications 2016年 第4期36卷 450-456页
作者: Xiaodong CHEN Mingchu LI Meijin XU College of Science Liaoning University of Technology school of softsware Dalian University of Technology
A spanning tree with no more than 3 leaves is called a spanning 3-ended tree.In this paper, we prove that if G is a k-connected(k ≥ 2) almost claw-free graph of order n and σ;(G) ≥ n + k + 2, then G contains a ... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
Path Cover in K1,4-Free Graphs
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Journal of Mathematical Research with Applications 2019年 第3期39卷 315-320页
作者: Mingda LIU Xiaodong CHEN Mingchu LI College of Science Liaoning University of Technology school of softsware Dalian University of Technology
For a graph G, a path cover is a set of vertex disjoint paths covering all the vertices of G, and a path cover number of G, denoted by p(G), is the minimum number of paths in a path cover among all the path covers o... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
Longest Cycles in 2-Connected Quasi-Claw-Free Graphs
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Journal of Mathematical Research with Applications 2014年 第1期34卷 33-42页
作者: Xiaodong CHEN Mingchu LI Xin MA College of Science Liaoning University of Technology school of softsware Dalian University of Technology
A graph G is called quasi-claw-free if it satisfies the property:d(x,y)=2 there exists a vertex u∈N(x)∩N(y)such that N[u]■N[x]∪N[y].In this paper,we show that every 2-connected quasi-claw-free graph of order n wit... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论