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Pappuss Theorem and the Modular Group
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Pappus's Theorem and the Modular Group

June 16, 2010
Pappus's Theorem and the Modular Group This poster illustrates what happens when Pappus's theorem is iterated. Pappus's theorem is a basic theorem in projective geometry, going back to Pappus of Alexandria, an ancient Greek mathematician. The poster illustrates the research in the paper Pappus's Theorem and the Modular Group, I.H.E.S. Publications Mathematiques (1993), Vol. 78 pp. 187-206, by Richard Evan Schwartz. (Date of Image: 2002)