节点文献
求偶图最大匹配的矩阵算法
The Matrix Algorithm of Search a Maximum Matching in Bipartite Graph
【摘要】 深入研究了偶图与其简化邻接矩阵之间的关系 ,提出了 (0 ,1 ) -矩阵的无关元对角形概念 ,利用此概念给出了定理“任一 (0 ,1 ) -矩阵的项秩与线秩相等”的一种直接简单证明 ,得到了判断 (0 ,1 ) -矩阵的无关元集为最大无关元集的充要条件。最后给出了寻找偶图最大匹配的算法———矩阵算法 ,该算法与匈牙利算法比较具有较高的运算效率和易于在计算机上实现等优点
【Abstract】 In this paper, bipartite graph and its reduced adjacency matrix are studied, and the concept of diagonal matrix of an irrelative element set is given. We give a short proof of the theorem: in a (0,1)-matrix the term rank equals the line rank. The theorem is obtained: in a (0,1)-matrix, an irrelative element set F is maximum irrelative element set if and only if that there is a line cover Γ with |Γ|=|F|. In the end, the matrix algorithm of search a maximum matching in bipartite graph is given.
【关键词】 偶图;
(0,1)-矩阵;
无关元对角形;
最大匹配;
【Key words】 bipartite graph; (0,1)-matrix; diagonal matrix of an irrelative element set; maximum matching;
【Key words】 bipartite graph; (0,1)-matrix; diagonal matrix of an irrelative element set; maximum matching;
- 【文献出处】 北京建筑工程学院学报 ,Journal of Beijing Institute of Civil Engineering and Architecture , 编辑部邮箱 ,2003年02期
- 【分类号】O157.5
- 【被引频次】2
- 【下载频次】155