On the Number of r-Matchings in a Tree
نویسندگان
چکیده
An r-matching in a graph G is a collection of edges in G such that the distance between any two edges is at least r. This generalizes both matchings and induced matchings as matchings are 1-matchings and induced matchings are 2-matchings. In this paper, we estimate the minimum and maximum number of r-matchings in a tree with fixed order.
منابع مشابه
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عنوان ژورنال:
- Electr. J. Comb.
دوره 24 شماره
صفحات -
تاریخ انتشار 2017