An introduction to matching polynomials
An introduction to matching polynomials
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DOI:
10.1016/0095-8956(79)90070-4
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发表时间:
1979-08
期刊:
影响因子:
--
通讯作者:
E. Farrell
中科院分区:
文献类型:
--
作者:
E. Farrell
A matching of a graphGis a spanning subgraph ofGin which every component is either a node or an edge ofG. With every matchingM, we can associate a monomialΠ(M) =Παwαwherewαis a weight associated with the component and the product is taken over all components inM. The matching polynomial ofGis the polynomialΣΠ(M), where the summation is taken over all matchings inG. Since the edges of a matching are independent edges of the graph, the coefficients of the terms of the matching polynomial represent the number of sets of independent edges of various cardinalities inG.