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Extrema property of the k-ranking of directed paths and cycles
A k-ranking of a directed graph G is a labeling of the vertex set of G with k positive integers such that every directed path connecting two vertices with the same label includes a vertex with a larger label in between. The rank number of G is defined to be the smallest k such that G has a k-ranki...
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| Main Authors: | , , , |
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| 格式: | Artigo |
| 語言: | Inglês |
| 出版: |
Taylor & Francis Group
2016-04-01
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| 叢編: | AKCE International Journal of Graphs and Combinatorics |
| 主題: | |
| 在線閱讀: | http://www.sciencedirect.com/science/article/pii/S0972860015300384 |
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