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Prevalent Lq-dimensions of measures

Published online by Cambridge University Press:  24 June 2010

L. OLSEN
L. OLSEN*
Affiliation:
Department of Mathematics, University of St. Andrews, St. Andrews, Fife KY16 9SS, Scotland. e-mail: [email protected]
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Abstract

Let K be a compact subset of ℝd and write s for the Hausdorff dimension of K. For a probability measure μ on K, the lower and upper Lq-dimensions of order q ∈ ℝ are defined byIn this paper we study Lq-dimensions of measures that are generic in the sense of prevalence. In particular, we prove that if K satisfies a mild regularity condition, then a prevalent probability measure μ on K satisfies:for all 0 ≤ q ≤ 1, andfor all 1 ≤ q. This result is in sharp contrast to the behaviour of the Lq-dimensions of measures that are generic in the sense of Baire category. Namely, if K satisfies a mild regularity condition, then a probability measure μ on K that is generic in the sense of Baire category satisfies:for all 1 < q.

Type
Research Article
Information
Mathematical Proceedings of the Cambridge Philosophical Society , Volume 149 , Issue 3 , November 2010 , pp. 553 - 571
Copyright
Copyright © Cambridge Philosophical Society 2010

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