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| 摘要: |
| 设G是超欧拉图,X是G的子图.在G中,把X的点收缩为一个点vX,去掉X的边,得到G关于子图X的收缩,记为G/X.引入a—子图的概念,得到了若干a—子图,并表明如何利用a—子图来寻找欧拉生成子图的最大边数. |
| 关键词: 欧拉生成子图 收缩 边数 |
| DOI: |
| 分类号:O157.5 |
| 基金项目:重庆市自然科学基金 |
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| A method to find maximum number of edges in a spanning Eulerian subgraph |
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李登信' target='_blank'>LI Deng-xin
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| Abstract: |
| Suppose G is Eulerian graph,X is the subgraph of Gv,in G,the point of X is contracted to a point vxv,if the edges of X are removed,the contraction of subgraph X of G is arrived at and is noted as G/X.The concept of a-subgraph is introduced,a lot of a-subg |
| Key words: spanning Eulerian subgraph,contraction,number of edges. |