Multiplicative analogue of Markoff-Lagrange spectrum and Pisot numbers
Multiplicative analogue of Markoff-Lagrange spectrum and Pisot numbers
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马可夫-拉格朗日谱和皮索数的乘法模拟
DOI:
10.1016/j.aim.2020.107547
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发表时间:
2021
影响因子:
1.7
通讯作者:
Hajime Kaneko
中科院分区:
文献类型:
--
作者:
Shigeki Akiyama;Hajime Kaneko
Markoff-Lagrange spectrum uncovers exotic topological properties of Diophantine approximation. We investigate asymptotic properties of geometric progressions modulo one and observe significantly analogous results on the set L (α)={lim sup n→∞‖ ξ α n‖| ξ∈ R}, where‖ x‖ is the distance from x to the nearest integer. First, we show that L (α) is closed in [0, 1/2] for any Pisot number α. Then we consider the case where α is an integer with α≥ 2, or a quadratic unit with α≥ 3. We show that L (α) contains a proper interval when α is quadratic but it does not when α is an integer. We also determine the minimum limit point and all isolated points beneath this point. In the course of the proof, we revisit a property studied by Markoff which characterizes bi-infinite balanced words and sturmian words.
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影响因子:
0.8
作者:
T. Vijayaraghavan
通讯作者:
T. Vijayaraghavan
影响因子:
0.9
作者:
A. Cerqueira;C. Moreira;Sergio Romaña
通讯作者:
Sergio Romaña
影响因子:
0.8
作者:
T. Pejkovic
通讯作者:
T. Pejkovic
DOI:
--
发表时间:
2009
期刊:
Uniform Distribution Theory 4
影响因子:
--
作者:
Tadasu Sato;et. al.;渡辺彩乃;荒川貴弘;荒川貴弘;金子元;金子元;金子元;金子元;金子元;金子元
通讯作者:
金子元
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
E. Bombieri
通讯作者:
E. Bombieri