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New proof of a characterization of geodetic graphs

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Abstract

In [3], the present author used a binary operation as a tool for characterizing geodetic graphs. In this paper a new proof of the main result of the paper cited above is presented. The new proof is shorter and simpler.

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References

  1. G. Chartrand and L. Lesniak: Graphs & Digraphs. Third edition. Chapman & Hall, London, 1996.

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  2. H. M. Mulder: The Interval Function of a Graph. Mathematisch Centrum, Amsterdam, 1980.

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  3. L. Nebeský: An algebraic characterization of geodetic graphs. Czechoslovak Math. J. 48 (123) (1998), 701–710.

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  4. L. Nebeský: A tree as a finite nonempty set with a binary operation. Math. Bohem. 125 (2000), 455–458.

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Authors and Affiliations

  1. Filozofická fakulta, nám. J. Palacha 2, Univerzita Karlova v Praze, 116 38, Praha 1, Czech Republic

    Ladislav Nebeský

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  1. Ladislav Nebeský
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Nebeský, L. New proof of a characterization of geodetic graphs. Czechoslovak Mathematical Journal 52, 33–39 (2002). https://doi.org/10.1023/A:1021715219620

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  • DOI: https://doi.org/10.1023/A:1021715219620

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