Uniform Distribution Theory
Journal license

Journal

Uniform Distribution Theory


Volume
& Issue

Volume 2, Issue 1


Published
on

November 12, 2007


Pages

127-149


DOI

Article

Further Baire Results on the Distribution of Subsequences


Authors

Martin Goldstern Affiliation:
Institut fur Diskrete Mathematik und Geometrie Technische Universitat Wien Wiedner Hauptstraße 8-10 1040 Wien AUSTRIA
, Jorg Schmeling Affiliation:
Center for Mathematical Sciences LTH, P.O.-Box 118 SE-22100 Lund SWEDEN
and Reinhard Winkler Affiliation:
Institut fur Diskrete Mathematik und Geometrie Technische Universitat Wien Wiedner Hauptstraße 8-10 1040 Wien AUSTRIA


Abstract

This paper presents results about the distribution of subsequences which are typical in the sense of Baire categories. The first main part is concerned with sequences of the type xk = nkα, n1 < n2 < n3 < · · · , mod 1. Improving a result of Sˇal´at we show that, if the quotients qk = nk+1/nk satisfy qk ≥ 1 + ε, then the set of all α such that (xk) is uniformly distributed is of first Baire category, i.e. for generic α we do not have uniform distribution. Under the stronger assumption limk→∞ qk = ∞ one even has maldistribution for generic α, the strongest possible contrast to uniform distribution. Nevertheless, growth conditions on the nk alone do not suffice to explain various interesting phenomena. In particular, for individual sequences the situation maybe quite diverse: For nk = 2k there is a set M such that for generic α the set of all limit measures of (xk) is exactly M, while for nk = 2k + 1 such an M does not exist. For the rest of the paper we consider appropriately defined Baire spaces S of subsequences. For a fixed well distributed sequence (xn) we show that there is a set M of measures such that for generic (nk) ∈ S the set of limit measures of the subsequence (xnk ) is exactly M.


Keywords

Baire category, distribution of subsequences, nα-sequences, well distributed.


Citation

Goldstern, M., Schmeling, J., & Winkler, R. (2007). Further baire results on the distribution of subsequences. Uniform Distribution Theory, 2(1), 127–149.

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