A note on equivalent interval covering systems for Hausdorff dimension on ℝ

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Abstract
The Hausdorff dimension of a set in ℝ is usually defined by considering countable coverings of the set by general intervals. In this note we establish sufficient conditions under which coverings whose members are restricted to a particular family g of intervals will produce the same value for dimension. A result of Billingsley is then employed to obtain a general technique for computing the dimensions of sets defined by certain types of generalized expansions. A specific example is included.
Funding Information
  • Natural Sciences and Engineering Research Council of Canada

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