Covering the edges of digraphs in D(3, 3) and D(4, 4) with directed cuts
نویسندگان
چکیده
For integers k, l ≥ 0, let D(k, l) denote the family of digraphs in which every vertex has either indegree at most k or outdegree at most l. In this paper we prove that the edges of every digraph in D(3, 3) and D(4, 4) can be covered by at most five directed cuts, and present an example in D(3, 3) which shows that this result is best possible.
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عنوان ژورنال:
- Discrete Mathematics
دوره 312 شماره
صفحات -
تاریخ انتشار 2012