Abstract | ||
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Let Pt and Cℓ denote a path on t vertices and a cycle on ℓ vertices, respectively. In this paper we study the k-coloring problem for (Pt,Cℓ)-free graphs. Bruce et al. (2009), and Maffray and Morel (2012) have proved that 3-colorability of P5-free graphs has a finite forbidden induced subgraphs characterization, while Hoàng et al. (2015) have shown that k-colorability of P5-free graphs for k≥4 does not. These authors have also shown, aided by a computer search, that 4-colorability of (P5,C5)-free graphs does have a finite forbidden induced subgraph characterization. |
Year | DOI | Venue |
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2014 | 10.1016/j.dam.2015.10.024 | Discrete Applied Mathematics |
Keywords | DocType | Volume |
Coloring,Certifying algorithms,Paths and cycles,NP-complete,Obstructions | Conference | 216 |
ISSN | Citations | PageRank |
0166-218X | 8 | 0.65 |
References | Authors | |
16 | 2 |
Name | Order | Citations | PageRank |
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Pavol Hell | 1 | 2638 | 288.75 |
Shenwei Huang | 2 | 31 | 2.89 |