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Sibirskii Matematicheskii Zhurnal, 2023, Volume 64, Number 3, Pages 540–545 DOI: https://doi.org/10.33048/smzh.2023.64.307
(Mi smj7779)
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This article is cited in 3 scientific papers (total in 3 papers)
On the intermediate values of the box dimensions
A. V. Ivanov Institute of Applied Mathematical Research of the Karelian Research Centre RAS, Petrozavodsk
DOI:
https://doi.org/10.33048/smzh.2023.64.307
Abstract:
We address the following question: Is it true that, for every metric compactum $X$ of box dimension $\dim_BX=a\leq\infty$ and every two reals $\alpha$ and $\beta$ such that $0\leq\alpha\leq\beta\leq a$, there exists a closed subset in $X$ whose lower box dimension is $\alpha$ and whose upper box dimension is $\beta$? We give the positive answer for $\alpha=0$. In the general case, this result is final. We construct an example of a metric compactum whose box dimension is $1$ but every nonempty proper closed subset of the compactum has lower box dimension $0$.
Keywords:
metric compactum, box dimension, intermediate values, counterexample.
Received: 16.01.2023 Revised: 03.02.2023 Accepted: 21.02.2023
Citation:
A. V. Ivanov, “On the intermediate values of the box dimensions”, Sibirsk. Mat. Zh., 64:3 (2023), 540–545; Siberian Math. J., 64:3 (2023), 593–597
Linking options:
https://www.mathnet.ru/eng/smj7779 https://www.mathnet.ru/eng/smj/v64/i3/p540
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