Kaneko Hajime

Affiliation
Faculty of Pure and Applied Sciences
Official title
Assistant Professor
URL
Research fields
Algebra
Research keywords
Sum of digits
Diophantine inequality
Mahler's Z-number
Beta expansion
Numeration system
Lagrange spectrum
Salem number
Pisot number
Limit points of fractional parts
Algebraic independence
more...
Research projects
多次元数系におけるdigitの漸近的挙動の解析に対する加法数論の応用2019-04 -- 2023-03日本学術振興会/基盤研究(C)3,250,000Yen
種々の数列のランダム性、およびその超越数論への応用2015-04 -- 2019-03金子　元Japan Society for the Promotion of Science/Grant-in-Aid for Young Scientists(B)2,860,000Yen
Academic background
2007-04 -- 2010-03Kyoto university Graduate school of science Division of mathematics and mathematical analysis Doctoral program
2005-04 -- 2007-03Kyoto university Graduate school of science Division of mathematics and mathematical analysis Master course
2001-04 -- 2005-03Keio university Science and technology Department of mathematics
Degree
2010-03Doctor of ScienceKyoto university
Academic societies
2009-01 -- (current)日本応用数理学会
2008-10 -- (current)日本数学会
Honors & Awards
2019-12若手教員奨励賞
2013-092013年度日本数学会賞建部賢弘賞奨励賞
Articles
Conference, etc.
  • Multiplicative analogue of Markoff-Lagrange spectrum related to geometric progressions
    金子 元
    Recent Progress in Ergodic Theory/2022-02-16--2022-02-18
  • On the sum of digits in the binary expansion of the products of integers
    金子 元
    Analytic Number Theory and Related Topics/2021-10-12--2021-10-15
  • Products of integers with few nonzero digits in binary expansion
    金子 元
    日本数学会2021年度年会/2021-03-18--2021-03-18
  • Analogy of Lagrange spectrum related to geometric progressions
    Kaneko Hajime
    One World Numeration Seminar/2020-07-07--2020-07-07
  • Hensel's lemma and application for the base-b expansions of integers
    Kaneko Hajime
    Number Theory and Ergodic Theory/2020-2-8--2020-2-10
  • Analogy with the Lagrange spectrum for the powers of quadratic Pisot unit
    Kaneko Hajime
    Equidistribution: Arithmetic, Computational and Probabilistic Aspects/2019-4-29--2019-5-17
  • Comparison of normality between different numerical systems
    金子 元
    日本数学会2019年度年会/2019-03-17--2019-03-20
  • Analogy with the Lagrange spectrum for geometric sequences
    Kaneko Hajime
    Keio Dynamics Day 2019/2019-03-15--2019-03-15
  • Analogy of the Lagrange spectrum for powers of quadratic Pisot units
    Kaneko Hajime
    Diophantine Analysis and Related Fields 2019/2019-03-07--2019-03-09
  • Uniform distribution theory related to beta expansion and geometric sequences
    金子 元
    第12回ゼータ若手研究集会/2019-02-17--2019-02-20
  • Comparison of generic points of measure preserving systems
    Kaneko Hajime
    数論とエルゴード理論/2019-02-09--2019-02-11
  • On the transcendence of power series at algebraic integer points
    金子 元
    解析的整数論とその周辺/2018-10-29--2018-10-31
  • ベキ級数に代数的整数を代入した値の超越性
    金子 元
    日本数学会2018年度秋季総合分科会/2018-09-24--2018-09-27
  • Diophantine approximation and base-b expansion of smooth numbers
    Kaneko Hajime
    Diophantine Approximation and Transcendence/2018-09-10--2018-09-14
  • 代数的数のベータ展開におけるdigit変化数について
    金子 元
    日本数学会2018年度年会/2018-03-18--2018-03-21
  • On the digital expansion of algebraic numbers
    Kaneko Hajime
    Diophantine Analysis and Related Fields 2018/2018-03-01--2018-03-03
  • 代数的数のdigit展開に関する最近の展望
    金子 元
    Workshop「数論とエルゴード理論」/2018-02--2018-02
  • On the digits in the base-b expansion of smooth numbers
    Kaneko Hajime
    Analytic Number Theory and Related Areas/2017-10-30--2017-11-01
  • On the number of nonzero digits of smooth numbers
    Kaneko Hajime
    Journees Arithmetiques/2017-07-03--2017-07-07
  • 整数及び小数のdigit展開における一様分布論の最近の展開
    Kaneko Hajime
    日本数学会2017年度秋季総合分科会/2017-09-11--2017-09-14
  • Algebraic independence of the values of power series with unbounded coefficients
    Kaneko Hajime
    Journee d'Approximation Diophantienne/2016-12-01--2016-12-01
  • Algebraic independence of real numbers related to beta expansion and beta representation
    Kaneko Hajime
    Normal Numbers: Arithmetic, Computational and Probabilistic Aspects/2016-11-14--2016-11-18
  • Algebraic independence of real numbers related to beta expansion
    金子 元
    Workshop「数論とエルゴード理論」/2016-02-06--2016-02-08
  • Arithmetical properties of the values of power series
    Kaneko Hajime
    Analytic Number Theory and Related Areas/2015-11-04--2015-11-06
  • Arithmetical properties of power series related to β-expansion
    Kaneko Hajime
    29th Journees Arithmetiques/2015-07-06--2015-07-10
  • more...
Teaching
2022-10 -- 2023-02Research in Algebra IIAUniversity of Tsukuba.
2022-04 -- 2022-08Research in Algebra IBUniversity of Tsukuba.
2022-10 -- 2023-02Research in Algebra IAUniversity of Tsukuba.
2022-10 -- 2023-02Algebra IBUniversity of Tsukuba.
2022-04 -- 2022-08Research in Algebra IIAUniversity of Tsukuba.
2022-04 -- 2022-08Algebra IUniversity of Tsukuba.
2022-04 -- 2022-08Research in Algebra IAUniversity of Tsukuba.
2022-10 -- 2023-02Research in Algebra IBUniversity of Tsukuba.
2022-04 -- 2022-08Research in Algebra IIBUniversity of Tsukuba.
2022-11 -- 2023-02Introduction to the Study of Graduation ThesisUniversity of Tsukuba.
more...
Other activities
2021 -- (current)One World Numeration Seminarの共同主催者の1人として活動をする。
2020-08 -- 2020-082020年筑波大学オンライン説明会における模擬授業を行った.
2020-12 -- (current)Darfセミナーの共同世話人の1人として活動をする。
2019-03 -- 2019-03研究集会「Diophantine Analysis and Related Fields 2019」のlocal organizerを務めた。
2016-08 -- 2016-08副オーガナイザーとして2016年度八王子数論セミナーをオーガナイズした。
2014-09 -- 2014-09２０１４年度八王子数論セミナーを若林功氏と共同でオーガナイズした。

(Last updated: 2023-02-19)