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![](/common/images/spacer.gif) Perron Number Tiling Systems
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![](/common/images/spacer.gif) 2005-05-11
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Four Programs for calculating Dr. Richard Kenyon's method for plane tilings from Perron numbers by substitutions. The construction of self-similar tilings , Geom. and Func. Analysis 6,(1996):417-488. Thurston showed that the expansion constant of a self-similar tiling of the plane must be a complex Perron number (algebraic integer strictly larger in modulus than its Galois conjugates except for its complex conjugate). Here we prove that, conversely, for every complex Perron number there exists a self-similar tiling. We also classify the expansion constants for self-similar tilings which have a rotational symmetry of order n.
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![](/common/images/spacer.gif) Tile, Tiling, fractiles, Kenyon, Perron numbers, Pisot numbers, Substitutions, von, Koch islands, fractal subsets
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![](/common/images/spacer.gif) http://www.mrlonline.org/mrl/2004-011-003/2004-011-003-001.pdf http://www.math.unt.edu/~mauldin/papers/no60.pdf
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| Kenyon_tile_article2.nb (41.4 KB) - Mathematica Notebook [for Mathematica 5.0] |
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