Bull. Korean Math. Soc. 2014; 51(1): 157-171
Printed January 1, 2014
https://doi.org/10.4134/BKMS.2014.51.1.157
Copyright © The Korean Mathematical Society.
Xue-hai Hu, Bing Li, and Jian Xu
Huazhong Agricultural University, South China University of Technology, Huazhong University of Science and Technology
We show that the recurrence rates of Laurent series about continued fractions almost surely coincide with their pointwise dimensions of the Haar measure. Moreover, let $E_{\alpha,\beta}$ be the set of points with lower and upper recurrence rates $\alpha$, $\beta$ ($0\leq \alpha \leq \beta\leq \infty$), we prove that all the sets $E_{\alpha,\beta}$ are of full Hausdorff dimension. Then the recurrence sets $E_{\alpha,\beta}$ have constant multifractal spectra.
Keywords: recurrence rate, pointwise dimension, continued fractions, Laurent series, Hausdorff dimension
MSC numbers: 28A80
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