03-143 Charles Radin
Orbits of Orbs: sphere packing meets Penrose tilings (338K, postscript) Mar 30, 03
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Abstract. The venerable study of optimum density problems, such as packing spheres as efficiently as possible, has been revitalized by investigations on aperiodicity, a subject best known through the Penrose kite \& dart tilings. The result is a generalization of the basic notion of geometric symmetry for patterns in space.

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