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Diskretnyi Analiz i Issledovanie Operatsii, 2010, Volume 17, Issue 2, Pages 20–38
(Mi da603)
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This article is cited in 12 scientific papers (total in 12 papers)
Acyclic 4-colorability of planar graphs without 4- and 5-cycles
O. V. Borodinab a S. L. Sobolev Institute of Mathematics, SB RAS, Novosibirsk, Russia
b Novosibirsk State University, Novosibirsk, Russia
Abstract:
Every planar graph is known to be acyclically 5-colorable (Borodin, 1976). Some sufficient conditions are also obtained for a planar graph to be acyclically 4- and 3-colorable. In particular, the acyclic 4-colorability was proved for the following planar graphs: without 3-, and 4-cycles (Borodin, Kostochka, Woodall, 1999), without 4-, 5- and 6-cycles, without 4-, 5- and 7-cycles, and with neither 4- or 5-cycles nor intersecting 3-cycles (Montassier, Raspaud and Wang, 2006), and also without cycles of length 4, 5 and 8 (Chen, Raspaud, 2009).
In this paper it is proved that each planar graph without 4-cycles and 5-cycles is acyclically 4-colorable. Bibl. 23.
Keywords:
planar graphs, acyclic coloring, forbidden cycles.
Received: 17.06.2009 Revised: 11.02.2010
Citation:
O. V. Borodin, “Acyclic 4-colorability of planar graphs without 4- and 5-cycles”, Diskretn. Anal. Issled. Oper., 17:2 (2010), 20–38; J. Appl. Industr. Math., 5:1 (2011), 31–43
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https://www.mathnet.ru/eng/da603 https://www.mathnet.ru/eng/da/v17/i2/p20
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Abstract page: | 455 | Full-text PDF : | 106 | References: | 60 | First page: | 7 |
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