Morisawa Takayuki
| Center for Promotion of Higher Education Division of Liberal Arts | Associate Professor |
Career
- Sep. 2019 - Present
学習院大学 - Apr. 2017 - Present
Kogakuin University, Division of Liberal Arts, Center for Promotion of Higher Education - Apr. 2016 - Mar. 2017
Kogakuin University, Center for Promotion of Higher Education - Apr. 2014 - Mar. 2016
Tokyo University of Science, Faculty of Science and Technology - Apr. 2013 - Mar. 2014
東京農工大学 - Apr. 2013 - Mar. 2014
JSPS, Keio University, Research Fellow (PD) - Apr. 2012 - Mar. 2013
JSPS, Waseda University, Research Fellow (PD) - Apr. 2010 - Mar. 2012
JSPS, Waseda University, Research Fellow (DC1)
Educational Background
Degree
Affiliated academic society
IDs
Identifiers
研究者番号：50724374
researchmap会員ID：7000015809
J-Global ID：201601015375416310
Research theme
Paper
- Odd case of 2-pile divisor Nim
Takayuki Morisawa
International Journal of Game Theory, 03 Jun. 2025, [Reviewed] - On Periodicity of 2-Pile Divisor Nim
Isao Makino; Takayuki Morisawa
Nov. 2024, [Reviewed] - Winning Strategy in 2-Pile Divisor Nim
Takayuki Morisawa
Nov. 2024, [Reviewed] - Filtrations of Relative Units in the Cyclotomic Z_p-extension of Q
Takayuki Morisawa
J. Ramanujan Math. Soc., Sep. 2024, [Reviewed] - Filtrations of units of Viète field
Takayuki Morisawa; Ryotaro Okazaki
International Journal of Number Theory, Jun. 2020, [Reviewed] - On the Class Numbers in the Cyclotomic $\mathbb{Z}_{29}$- and $\mathbb{Z}_{31}$-Extensions of the Field of Rationals
Yuta Kogoshi; Takayuki Morisawa
Experimental Mathematics, 2020, [Reviewed] - On the class semigroup of $\mathbb{Z}_S$-fields and Iwasawa invariants
Yutaka Konomi; Takayuki Morisawa
Journal of Pure and Applied Algebra, Sep. 2019, [Reviewed] - On the class semigroup of the cyclotomic $\mathbb Z_p$-extension of the rational numbers
Yutaka Konomi; Takayuki Morisawa
Journal of Commutative Algebra, 01 Feb. 2019, [Reviewed] - Height and Weber’s Class Number Problem
Takayuki Morisawa; Ryotaro Okazaki
Journal de Théorie des Nombres de Bordeaux, 2016, [Reviewed] - Weber’s Class Number One Problem
Takashi Fukuda; Keiichi Komatsu; Takayuki Morisawa
Contributions in Mathematical and Computational Sciences, 12 Nov. 2014, [Reviewed], [Invited] - On the $\ell$-part of the $\mathbb{Z}_{p_1} \times \cdots \times \mathbb{Z}_{p_s}$-extension of Q
Takayuki Morisawa
Journal of Number Theory, Jun. 2013, [Reviewed] - Mahler measure and Weber's class number problem in the cyclotomic $\boldsymbol{Z}_p$-extension of $\boldsymbol{Q}$ for odd prime number $p$
Takayuki Morisawa; Ryotaro Okazaki
Tohoku Mathematical Journal, 01 Jan. 2013, [Reviewed] - On $\lambda$-invariants of $\mathbb{Z}_\ell$-extensions over real abelian number fields of prime power conductors
Takashi Fukuda; Keiichi Komatsu; Takayuki Morisawa
Functiones et Approximatio Commentarii Mathematici, 01 Sep. 2012, [Reviewed] - Iwasawa invariants of real abelian number fields with prime power conductors (Algebraic Number Theory and Related Topics 2010)
KOMATSU KEIICHI; FUKUDA TAKASHI; MORISAWA TAKAYUKI
RIMS Kokyuroku Bessatsu, 2012, [Reviewed] - Mahler measure of the Horie unit and Weber's class number problem in the cyclotomic $\mathbb{Z}_{3}$-extension of $\mathbb{Q}$
Takayuki Morisawa
Acta Arithmetica, 2012, [Reviewed] - A Class Number Problem in the Cyclotomic $\mathbb{Z}_3$-extension of $\mathbb{Q}$
Takayuki MORISAWA
Tokyo Journal of Mathematics, 01 Dec. 2009, [Reviewed]
MISC
- On the Class Semigroup of a Z_p-extension
2018, [Invited] - 非可換岩澤主予想の定式化
2016 - 有理数体のZ_S-拡大の中間体の類数について
2012, [Invited] - Mahler Measure and Weber's Class Number Problem
2011, [Invited] - Mahler measure of the Horie unit and Weber's Class Number Problem in the Cyclotomic $\mathbb{Z}_p$-extension of $\mathbb{Q}$
Takayuki Morisawa
DIOPHANTINE ANALYSIS AND RELATED FIELDS 2010, 2010
Lectures, oral presentations, etc.
- m山約数ニムのSprague-Grundy数について
24 Aug. 2025 - 2山約数ニムの周期性について
04 Mar. 2025, [Invited] - 2山約数ニムの必勝法
04 Mar. 2025, [Invited] - 有理数体の円分的Z_p-拡大の中間体の相対単数群について
28 Feb. 2024 - Filtration of Relative Units in the Z_2-extension of Q
13 Dec. 2019, [Invited] - 素数冪導手の円単数について
12 Jan. 2019 - On the class semigroup of a Zp-extension
15 Mar. 2018 - 代数体のZ_p-拡大の類半群について
Takayuki Morisawa
野々市代数的整数論2018, 24 Feb. 2018 - 代数体のZ_p-拡大のイデアル類半群について
18 Nov. 2017 - ウェーバーの類数問題について
02 Nov. 2017, [Invited] - 円分的Z_p-拡大体の類半群について
14 Jul. 2017 - On the class numbers in the cyclotomic Z_p-extension of abelian fields
Takayuki Morisawa
Number Theory Seminar, 29 Jul. 2016 - On the class semigroup of Z_p-extensions
Takayuki Morisawa
Number Theory Seminar, 29 Jul. 2016 - 有理数体の円分的Z_p-拡大の類半群について
24 Jun. 2016 - 有理数体の円分的Z_p-拡大のイデアル類半群について
12 Dec. 2015 - 有理数体のZp-拡大の類半群について
12 Nov. 2015 - ガウス数体上の制限分岐 Z_p-拡大の中間体の類数について
02 Sep. 2015 - ガウス数体上の制限分岐Z_p拡大における類数問題
22 May 2015 - Class numbers in Z_S-extensions of Q(√-1) with restricted ramification
Takayuki Morisawa
Japan-Korea Joint Seminar on Number Theory and Related Topics 2014, 19 Nov. 2014 - 非可換岩澤主予想の定式化
29 Aug. 2014 - On the l-part of class numbers in Z_p-extensions of Q(√-1) with restricted ramification
17 Jul. 2014 - Height of units and the cyclotomic Z_p-extension of Q
Takayuki Morisawa
Cambridge Number Theory Seminar, 11 Feb. 2014 - 単数の高さと有理数体のZ_S-拡大における類数問題
16 Nov. 2013 - Height of Units and Weber's Problem
Takayuki Morisawa
Postech PMI Number Theory Seminar, 17 Sep. 2013 - 単数の高さと有理数体のZ_Σ-拡大の中間体の類数
31 Aug. 2013 - Height of units and class numbers in the Zp1X…X Zps -extension of Q
Takayuki Morisawa
Pan Asian Number Theory Conference 2013, 25 Jul. 2013 - Height and the Z_p_1×...× Z_p_s-Extension of Q
20 Jul. 2013 - Remarks on Elliptic Curves over the Cyclotomic Z_p-extension
27 May 2013 - Height and Class Numbers in Z_p-extension of Q
Takayuki Morisawa
Number Theory Forum, 26 Mar. 2013 - On the l-part of Z_p-extension of Q
15 Feb. 2013 - 有理数体のZ_p拡大の中間体の類数について
13 Feb. 2013 - Height and Weber's Class Number Problem
19 Oct. 2012 - Weber's class number one problem
Keiichi Komatsu; Takashi Fukuda and Takayuki Morisawa
Iwasawa 2012, 03 Aug. 2012 - Weber's class number one problem
07 Jul. 2012 - 有理数体の円分的 Z_3 拡大の類数問題II
07 Apr. 2012 - 有理数体の Z_2-拡大の中間体の類数の非可除性について
12 Feb. 2012 - 有理数体の Z_S-拡大の中間体の類数について
26 Dec. 2011 - On l-indivisibility of class number of the Z_p_1×・・・×Z_p_s-extension of Q
Takayuki Morisawa
Japan-Korea Number Theory Seminar 2011, 09 Nov. 2011 - On the l-part of the Z_p_1×・・・×Z_p_s-extension of Q
22 Jul. 2011 - Primitive Root Modulo p^2 and Weber's Conjecture for p
06 May 2011 - 有理数体のZ_p_1×・・・×Z_p_s-拡大の中間体の類数について
20 Mar. 2011 - On λ-invariants of Z_l-extensions over real abelian number fields with conductors of 2-powers
09 Dec. 2010 - 有理数体のZ_p×Z_q-拡大の中間体の類数について
06 Nov. 2010 - 有理数体のZ_3×Z_5-拡大の中間体の類数について
29 Oct. 2010 - 円単数のMahler測度とWeberの類数問題
21 Oct. 2010 - Weber's Problem in Class Numbers of the Cyclotomic Z_p-extension of Q for odd prime number p
08 Oct. 2010 - 円単数とウェーバーの問題
14 Aug. 2010 - ウェーバーの類数問題とマーラー測度
15 Jul. 2010 - Mahler Measure and Weber's Problem in the Cyclotomic Z_3-extension of the rational field
20 Mar. 2010 - Mahler Measure and Weber's Class Number Problem
17 Mar. 2010 - Mahler Measure of Horie Unit and Weber's Class Number Problem in the Cyclotomic Z_p-extension of Q
Takayuki Morisawa
Diophantine Analysis and Related Fields 2010, 04 Mar. 2010 - 有理数体の円分的 Z_3 拡大におけるWeberの類数問題
18 Feb. 2010 - 有理数体の円分Z_3拡大におけるウェーバーの問題
29 Jan. 2010 - 有理数体の円分的Z_p拡大におけるウェーバーの類数問題
16 Jan. 2010 - 有理数体の円分的Z_3拡大におけるウェーバーの問題
10 Dec. 2009 - 有理数体の円分的Z3 拡大におけるWeber の問題
25 Sep. 2009 - Weber’s problem in the cyclotomic Z3-extension of the rational field
23 Jul. 2009 - A class number problem of real abelian fields of 3-power conductor
17 Jul. 2009 - A class number problem in the cyclotomic Z_3 extension of Q
Takayuki Morisawa
Joint Workshop on Number Theory between Japan and Taiwan, 09 Mar. 2009 - 有理数体の円分Z_3拡大の類数問題
07 Mar. 2009 - 有理数体の円分的Z_3拡大の類数問題
28 Feb. 2009 - 有理数体の円分的Z_3拡大の類数問題
06 Dec. 2008 - 有理数体の円分的 Z_3 拡大の類数問題
28 Nov. 2008
Research Themes
Courses
