Hausdorff dimension of sets of numbers whose continued fractions contain arbitrarily long arithmetic progressions.

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Title: Hausdorff dimension of sets of numbers whose continued fractions contain arbitrarily long arithmetic progressions.
Authors: Nakajima, Yuto1 (AUTHOR) yunakaji@mail.doshisha.ac.jp, Takahasi, Hiroki2 (AUTHOR) hiroki@math.keio.ac.jp, Wang, Baowei3 (AUTHOR) bwei_wang@hust.edu.cn
Source: Journal of Number Theory. Oct2026, Vol. 287, p72-94. 23p.
Subjects: Continued fractions, Arithmetic series, Irrational numbers, Mathematical sequences, Fractal dimensions, Fractals
Abstract: Continued fractions with prescribed structures on sequences of their partial quotients have been intensively studied in the literature. As far as an integer sequence, especially a randomly generated one is concerned, an attractive question is whether it contains arbitrarily long arithmetic progressions. In this paper we study the fractal structure of irrational numbers whose sequences of partial quotients are strictly increasing and contain arbitrarily long, quantified arithmetic progressions. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Number Theory is the property of Academic Press Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Hausdorff dimension of sets of numbers whose continued fractions contain arbitrarily long arithmetic progressions.
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  Data: <searchLink fieldCode="AR" term="%22Nakajima%2C+Yuto%22">Nakajima, Yuto</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> yunakaji@mail.doshisha.ac.jp</i><br /><searchLink fieldCode="AR" term="%22Takahasi%2C+Hiroki%22">Takahasi, Hiroki</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> hiroki@math.keio.ac.jp</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Baowei%22">Wang, Baowei</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> bwei_wang@hust.edu.cn</i>
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  Data: <searchLink fieldCode="DE" term="%22Continued+fractions%22">Continued fractions</searchLink><br /><searchLink fieldCode="DE" term="%22Arithmetic+series%22">Arithmetic series</searchLink><br /><searchLink fieldCode="DE" term="%22Irrational+numbers%22">Irrational numbers</searchLink><br /><searchLink fieldCode="DE" term="%22Mathematical+sequences%22">Mathematical sequences</searchLink><br /><searchLink fieldCode="DE" term="%22Fractal+dimensions%22">Fractal dimensions</searchLink><br /><searchLink fieldCode="DE" term="%22Fractals%22">Fractals</searchLink>
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  Data: Continued fractions with prescribed structures on sequences of their partial quotients have been intensively studied in the literature. As far as an integer sequence, especially a randomly generated one is concerned, an attractive question is whether it contains arbitrarily long arithmetic progressions. In this paper we study the fractal structure of irrational numbers whose sequences of partial quotients are strictly increasing and contain arbitrarily long, quantified arithmetic progressions. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Journal of Number Theory is the property of Academic Press Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.jnt.2026.03.005
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      – Code: eng
        Text: English
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        PageCount: 23
        StartPage: 72
    Subjects:
      – SubjectFull: Continued fractions
        Type: general
      – SubjectFull: Arithmetic series
        Type: general
      – SubjectFull: Irrational numbers
        Type: general
      – SubjectFull: Mathematical sequences
        Type: general
      – SubjectFull: Fractal dimensions
        Type: general
      – SubjectFull: Fractals
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      – TitleFull: Hausdorff dimension of sets of numbers whose continued fractions contain arbitrarily long arithmetic progressions.
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            NameFull: Takahasi, Hiroki
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              M: 10
              Text: Oct2026
              Type: published
              Y: 2026
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              Value: 287
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