# Institut for Matematik

## Zero-infinity laws in Diophantine approximation

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• Y. Bugeaud, Université Louis Pasteur, Frankrig
• M.M. Dodson, University of York, Danmark
• S. Kristensen
• Institut for Matematiske Fag
It is shown that for any translation invariant outer measure M, the M-measure of the intersection of any subset of R^n that is invariant under rational translations and which does not have full Lebesgue measure with an the closure of an open set of positive measure cannot be positive and finite. Analogues for $p$-adic fields and fields of formal power series over a finite field are established. The results are applied to some problems in metric Diophantine approximation.
Originalsprog Engelsk Quarterly Journal of Mathematics 56 3 311-320 10 0033-5606 Udgivet - 2005

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