Rainbow Connection in 3-Connected Graphs |
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| Authors: | Xueliang Li Yongtang Shi |
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| Institution: | 1. Center for Combinatorics and LPMC-TJKLC, Nankai University, Tianjin, 300071, People’s Republic of China
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| Abstract: | An edge-colored graph G is rainbow connected if any two vertices are connected by a path whose edges have distinct colors. The rainbow connection number of a connected graph G, denoted by rc(G), is the smallest number of colors that are needed in order to make G rainbow connected. In this paper, we proved that rc(G) ≤ 3(n + 1)/5 for all 3-connected graphs. |
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