Pappus Configuration
PappusConfiguration
The Pappus configuration is the 9_3 configuration illustrated above that appears in Pappus's hexagon theorem. It is one of the three 9_3 configurations.
The Levi graph of the Pappus configuration is known as the Pappus graph.
See also
Pappus Graph, Pappus's Hexagon TheoremExplore with Wolfram|Alpha
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References
Berman, L. W.; Gévay, G.; and Pisanski, T. "Polycyclic Geometric Realizations of the Gray Configuration." 20 Feb 2025. https://arxiv.org/abs/2502.14484.Coxeter, H. S. M. "Self-Dual Configurations and Regular Graphs." Bull. Amer. Math. Soc. 56, 413-455, 1950.Grünbaum, B. Configurations of Points and Lines. Providence, RI: Amer. Math. Soc., pp. 1-2 and 9, 2009.Referenced on Wolfram|Alpha
Pappus ConfigurationCite this as:
Weisstein, Eric W. "Pappus Configuration." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/PappusConfiguration.html