Dynamical diophantine approximation
(2008) In [unknown]- Abstract
- Let $mu$ be a Gibbs measure of the doubling map $T$ of the circle. For a $mu$-generic point $x$ and a given sequence ${r_n} subset R^+$, consider the intervals $(T^nx - r_n pmod 1, T^nx + r_n pmod 1)$. In analogy to the classical Dvoretzky covering of the circle we study the covering properties of this sequence of intervals. This study is closely related to the local entropy function of the Gibbs measure and to hitting times for moving targets. A mass transference principle is obtained for Gibbs measures which are multifractal. Such a principle was shown by Beresnevich and Velani cite{BV} only for monofractal measures. In the symbolic language we completely describe the combinatorial structure of a typical relatively short sequence, in... (More)
- Let $mu$ be a Gibbs measure of the doubling map $T$ of the circle. For a $mu$-generic point $x$ and a given sequence ${r_n} subset R^+$, consider the intervals $(T^nx - r_n pmod 1, T^nx + r_n pmod 1)$. In analogy to the classical Dvoretzky covering of the circle we study the covering properties of this sequence of intervals. This study is closely related to the local entropy function of the Gibbs measure and to hitting times for moving targets. A mass transference principle is obtained for Gibbs measures which are multifractal. Such a principle was shown by Beresnevich and Velani cite{BV} only for monofractal measures. In the symbolic language we completely describe the combinatorial structure of a typical relatively short sequence, in particular we can describe the occurrence of ''atypical'' relatively long words. Our results have a direct and deep number-theoretical interpretation via inhomogeneous diadic diophantine approximation by numbers belonging to a given (diadic) diophantine class. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/record/945878
- author
- Fan, Ai-Hua; Schmeling, Jörg ^{LU} and Troubetzkoy, Serge
- organization
- publishing date
- 2008
- type
- Contribution to journal
- publication status
- submitted
- subject
- keywords
- Dynamical Systems (math.DS), Number Theory (math.NT), Probability (math.PR)
- in
- [unknown]
- publisher
- Historielärarnas förening
- ISSN
- 0439-2434
- language
- English
- LU publication?
- yes
- id
- aed515fc-f9a2-418f-bf5b-897a6d9a292b (old id 945878)
- alternative location
- http://arxiv.org/PS_cache/arxiv/pdf/0705/0705.4203v1.pdf
- date added to LUP
- 2008-03-04 13:57:17
- date last changed
- 2017-03-16 14:24:04
@article{aed515fc-f9a2-418f-bf5b-897a6d9a292b, abstract = {Let $mu$ be a Gibbs measure of the doubling map $T$ of the circle. For a $mu$-generic point $x$ and a given sequence ${r_n} subset R^+$, consider the intervals $(T^nx - r_n pmod 1, T^nx + r_n pmod 1)$. In analogy to the classical Dvoretzky covering of the circle we study the covering properties of this sequence of intervals. This study is closely related to the local entropy function of the Gibbs measure and to hitting times for moving targets. A mass transference principle is obtained for Gibbs measures which are multifractal. Such a principle was shown by Beresnevich and Velani cite{BV} only for monofractal measures. In the symbolic language we completely describe the combinatorial structure of a typical relatively short sequence, in particular we can describe the occurrence of ''atypical'' relatively long words. Our results have a direct and deep number-theoretical interpretation via inhomogeneous diadic diophantine approximation by numbers belonging to a given (diadic) diophantine class.}, author = {Fan, Ai-Hua and Schmeling, Jörg and Troubetzkoy, Serge}, issn = {0439-2434}, keyword = {Dynamical Systems (math.DS),Number Theory (math.NT),Probability (math.PR)}, language = {eng}, publisher = {Historielärarnas förening}, series = {[unknown]}, title = {Dynamical diophantine approximation}, year = {2008}, }