The Szekeres snark is a snark on 50 vertices. It is implemented in the Wolfram Language as GraphData["SzekeresSnark"].
The Szekeres snark was the fifth snark discovered, illustrated above. It has edge chromatic number 4.
Szekeres Snark
See also
SnarkPortions of this entry contributed by Ed Pegg, Jr. (author's link)
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References
Holton, D. A. and Sheehan, J. The Petersen Graph. Cambridge, England: Cambridge University Press, pp. 82 and 88-90, 1993.House of Graphs. "Szekeres Snark." https://houseofgraphs.org/graphs/1338.Szekeres, G. "Polyhedral Decompositions of Cubic Graphs." Bull. Austral. Math. Soc. 8, 367-387, 1973.West, D. B. Introduction to Graph Theory, 2nd ed. Englewood Cliffs, NJ: Prentice-Hall, p. 305, 2000.Referenced on Wolfram|Alpha
Szekeres SnarkCite this as:
Weisstein, Eric W., with contributions by Ed Pegg, Jr.. "Szekeres Snark." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/SzekeresSnark.html