Embedding of self-similar ultrametric Cantor sets

Details Embedding of self-similar ultrametric Cantor sets Embedding of self-similar ultrametric Cantor sets

2010-08-02

arxiv.org/abs/1008.0264v1

Mathematics

General Topology

12 pages

Scientific paper

We study self-similar ultrametric Cantor sets arising from stationary Bratteli diagrams. We prove that such a Cantor set C is bi-Lipschitz embeddable in R^(d+1), where d denotes the integer part of its Hausdorff dimension. We compute this Hausdorff dimension explicitly and show that it is the abscissa of convergence of a zeta-function associated with a natural nerve of coverings of C (given by the Bratteli diagram). As a corollary we prove that the transversal of a (primitive) substitution tiling of R^d is bi-Lipschitz embeddable in R^(d+1) . We also show that C is bi-Hoelder embeddable in the real line. The image of C in R turns out to be the omega-spectrum (the limit points of the set of eigenvalues) of a Laplacian on C introduced by Pearson-Bellissard via noncommutative geometry.

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