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On the ramsey number of the five-spoked wheel

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Graphs and Combinatorics

Part of the book series: Lecture Notes in Mathematics ((LNM,volume 406))

Abstract

Let r(W6) be the smallest n such that the five-spoked wheel W6 √ G or else W6 for every graph G with n vertices. Recently, Erdös asked whether whether r(W6) ≥ 18; we prove that 17 ≤ r(W6) ≤ 20. In so doing, we establish that r(C5, W6) = 13. We conjecture that r(W6) = 20.

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References

  1. Chartrand, G. and Schuster, S. On the Existence of Specified Cycles in Complementary Graphs. Bull. Amer. Math. Soc., 77 (1971) 995–998.

    Article  MathSciNet  MATH  Google Scholar 

  2. Chvátal, V. and Harary, F. Generalized Ramsey Theory for Graphs. Bull. Amer. Math. Soc. 78 (1972) 423–426.

    Article  MathSciNet  MATH  Google Scholar 

  3. Chvátal, V. and Harary, F., Generalized Ramsey Theory for Graphs, I. Diagonal Numbers. Periodica Math. Hungar. 3 (1973) 115–124.

    Article  MATH  Google Scholar 

  4. Dirac, G. A. A Property of 4-chromatic Graphs and Some Remarks on Critical Graphs. J. London Math. Soc. 27 (1952) 85–92.

    Article  MathSciNet  MATH  Google Scholar 

  5. Erdös, P. Some Remarks on the Theory of Graphs. Bull. Amer. Math. Soc. 53 (1947) 292–294.

    Article  MathSciNet  MATH  Google Scholar 

  6. Greenwood, R. E. and Gleason, A. M. Combinatorial Relations and Chromatic Graphs. Canad. J. Math. 7 (1955) 1–7.

    Article  MathSciNet  MATH  Google Scholar 

  7. Harary, F. Graph Theory. Addison-Wesley, Reading, Mass., 1969.

    Google Scholar 

  8. Ramsey, F. P. On a Problem of Formal Logic. Proc. London Math. Soc. 30 (1930) 264–286.

    Article  MathSciNet  Google Scholar 

  9. Schwenk, A. J. Acquaintance Graph Party Problem. Amer. Math. Monthly 79 (1972) 1113–1117.

    Article  MathSciNet  MATH  Google Scholar 

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Ruth A. Bari Frank Harary

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© 1974 Springer-Verlag Berlin

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Chvátal, V., Schwenk, A. (1974). On the ramsey number of the five-spoked wheel. In: Bari, R.A., Harary, F. (eds) Graphs and Combinatorics. Lecture Notes in Mathematics, vol 406. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0066447

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  • DOI: https://doi.org/10.1007/BFb0066447

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-06854-9

  • Online ISBN: 978-3-540-37809-9

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