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The linear arboricity of some regular graphs. (English) Zbl 0581.05017

We prove that the linear arboricity of every 5-regular graph is 3. That is, the edges of any 5-regular graph are covered by three linear forests. We also determine the linear arboricity of 6-regular graphs and 8-regular graphs. These results improve the known upper bounds for the linear arboricity of graphs with given maximum degree.

MSC:

05C05 Trees
05C35 Extremal problems in graph theory
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References:

[1] Akiyama, TRU Math. 16 pp 97– (1980)
[2] Akiyama, Math. Slovaca 30 pp 405– (1980)
[3] Akiyama, Networks 11 pp 69– (1981)
[4] Extremal Graph Theory. Academic, New York (1978).
[5] Graph Theory. Addison-Wesley, Reading, MA (1969).
[6] Harary, Ann. N.Y. Acad. Sci. 175 pp 198– (1970) · Zbl 0226.05119
[7] private communication.
[8] Tomasta, Math. Slovaca 32 pp 239– (1982)
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