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Minimal sets on tori

Published online by Cambridge University Press:  19 September 2008

Daniel Berend
Affiliation:
Department of Mathematics, University of California, Los Angeles, CA 90024, USA
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Abstract

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Let Σ be a commutative semigroup of continuous endomorphisms of the r-dimensional torus. Generalizing a result of Furstenberg dealing with the circle group, necessary and sufficient conditions are given here for Σ to possess the following property: Any Σ-minimal set consists of torsion elements. Semigroups not having this property are shown to admit minimal sets of positive Hausdorff dimension.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1984

References

REFERENCES

[1]Berend, D.. Multi-invariant sets on tori. Trans. Amer. Math. Soc. 280 (1983), 509532.CrossRefGoogle Scholar
[2]Berend, D.. Ergodic semigroups of epimorphisms. Trans. Amer. Math. Soc. (To appear.)Google Scholar
[3]Furstenberg, H.. Disjointness in ergodic theory, minimal sets and a problem in diophantine approximation. Math. Systems Theory 1 (1967), 149.CrossRefGoogle Scholar
[4]Furstenberg, H.. Intersections of Cantor sets and transversality of semigroups. In Problems in Analysis, (Gunning, R. C. - General editor). Princeton University Press: Princeton, New Jersey, 1970, p. 4159.Google Scholar
[5]Furstenberg, H. & Weiss, B.. Topological dynamics and combinatorial number theory. J. d'Analyse Math. 34 (1978), 6185.CrossRefGoogle Scholar
[6]Hardy, G. H. & Littlewood, J. E.. The fractional part of n kθ. Ada. Math. 37 (1914), 155191.Google Scholar
[7]Pareigis, B.. Categories and Functors. Academic Press: New York and London, 1970.Google Scholar