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Double Star Snark

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DoubleStarSnark

The double star snark is a snark on 30 vertices with edge chromatic number 4. It is implemented in the Wolfram Language as GraphData["DoubleStarSnark"].

The double star snark is a platypus graph. It has graph crossing number 8 (E. Weisstein, Oct. 5, 2026).

See also

Snark

Portions 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. 98-100, 1993.House of Graphs. "Double Star Snark." https://houseofgraphs.org/graphs/1049.Isaacs, R. "Infinite Families of Nontrivial Trivalent Graphs Which Are Not Tait Colorable." Amer. Math. Monthly 82, 221-239, 1975.

Referenced on Wolfram|Alpha

Double Star Snark

Cite this as:

Weisstein, Eric W., with contributions by Ed Pegg, Jr.. "Double Star Snark." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/DoubleStarSnark.html

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