Pattern Equivariant Cohomology and Theorems of Kesten and Oren
Abstract
In 1966 Harry Kesten settled the Erd os-Sz\"usz conjecture on the local discrepancy of irrational rotations. His proof made heavy use of continued fractions and Diophantine analysis. In this paper we give a purely topological proof Kesten's theorem (and Oren's generalization of it) using the pattern equivariant cohomology of aperiodic tiling spaces.
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