Tiling spaces, and the dynamics induced by translation, have
connections to many areas of mathematics. One dimensional tiling
spaces generalize symbolic dynamics. Substitution tiling spaces (in
one or higher dimensions) model expanding attractors. The dynamical
properties of higher dimensional tiling spaces describe the
diffraction properties of physical quasicrystals. In this talk, I'll
review the dynamics and topology of tiling spaces and then present
some new results on understanding homeomorphisms between tilings
spaces. To wit: under some mild assumptions, every homeomorphism of
tiling spaces is the composition of three maps: a self-map homotopic
to the identity, a "shape change" that preserves the combinatorics
of the tilings but distorts the shapes and sizes of the tiles, and a
local relabeling.
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Last modified: April 11 2016 - 18:14:43