Ito, Tetsushi(Graduate School of Science, Division of Mathematics and Mathematical Sciences) | Activity Database on Education and Research, Kyoto University

Ito, Tetsushi

Graduate School of Science, Division of Mathematics and Mathematical Sciences Associate Professor

Last Updated :2026/10/20

Basic Information

Faculty

理学部

Academic Degree

修士（数理科学）(東京大学)

博士（数理科学）(東京大学)

ID,URL

J-Global ID
201401006154370494

researchmap URL

https://researchmap.jp/7000008880

Last Updated :2026/10/20

Research

External funds: Kakenhi

A New Approach to the Modularity Conjecture via Variation of Arithmetic Invariants and Diophantine Stability
Grant-in-Aid for Challenging Research (Exploratory)
Medium-sized Section 11:Algebra, geometry, and related fields
Kyoto University
伊藤哲史
From 26 Jun. 2026, To 31 Mar. 2029, Granted
楕円曲線;保型性予想;L関数;岩澤理論;ディオファントス安定性
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-26K22257/

Discrete integrable systems and Diophantine problems
Grant-in-Aid for Challenging Research (Exploratory)
Medium-sized Section 11:Algebra, geometry, and related fields
Kyoto University
Tetsushi Ito
From 09 Jul. 2021, To 31 Mar. 2025, Project Closed
ディオファントス問題;アーベル多様体;離散可積分系
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21K18577/

The arithmetic and moduli of hyper-Kaehler varieties via non-archimedean methods
Grant-in-Aid for Scientific Research (B)
Basic Section 11010:Algebra-related
Kyoto University
伊藤哲史
From 01 Apr. 2021, To 31 Mar. 2026, Granted
非アルキメデス幾何;超ケーラー多様体;モジュライ
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21H00973/

局所志村多様体と局所ラングランズ対応
Grant-in-Aid for Scientific Research (B)
Basic Section 11010:Algebra-related
The University of Tokyo
三枝洋一
From 01 Apr. 2020, To 31 Mar. 2025, Granted
局所志村多様体;局所ラングランズ対応;パーフェクトイド空間;エタールコホモロジー;p進簡約代数群の表現論
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20H01792/

Arithmetic geometry of Shimura varieties and non-abelian class field theory
Grant-in-Aid for Young Scientists (B)
Kyoto University
Tetsushi Ito
From 01 Apr. 2014, To 31 Mar. 2018, Project Closed
代数学;数論幾何学;志村多様体
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-26800013/

Comprehensive studies on Shimura varieties, arithmeticgeometry, Galois representations, and automorphic representations
Grant-in-Aid for Young Scientists (S)
Kyoto University
Tetsushi ITO
From 01 Apr. 2008, To 31 Mar. 2013, Project Closed
数論幾何学;ガロア表現;保型表現;志村多様体
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20674001/

非可換岩澤理論とその周辺
Grant-in-Aid for Scientific Research (B)
Kyoto University
加藤和也
From 01 Apr. 2008, To 31 Mar. 2012, Project Closed
代数多様体;ホッジ構造;退化;アルバネーゼ多様体;対数的幾何学;SL(2)-orbit;岩澤理論;Hodge構造;P進hodge構造;非可換岩澤理論;Firfing ideaf;Si(2)-orbit
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20340006/

The arithmetic and moduli of hyper-Kaehler varieties via non-archimedean methods
Grant-in-Aid for Scientific Research (B)
Basic Section 11010:Algebra-related
Kyoto University
伊藤哲史
From 01 Apr. 2024, To 31 Mar. 2026, Granted
非アルキメデス幾何;超ケーラー多様体;モジュライ
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23K20786/

Local Shimura varieties and the local Langlands correspondence
Grant-in-Aid for Scientific Research (B)
Basic Section 11010:Algebra-related
The University of Tokyo
Yoichi Mieda
From 01 Apr. 2024, To 31 Mar. 2025, Project Closed
局所志村多様体;局所ラングランズ対応;パーフェクトイド空間;エタールコホモロジー;p進簡約代数群の表現論
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23K20204/

数論統計の手法によるディオファントス幾何学の研究とその応用
Grant-in-Aid for Challenging Research (Exploratory)
Medium-sized Section 11:Algebra, geometry, and related fields
Kobe University
谷口隆
From 28 Jun. 2024, To 31 Mar. 2027, Granted
ディオファントス問題;アーベル多様体;ヤコビ多様体;数論統計;離散可積分系
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24K21512/

局所志村多様体を通した古典群の局所ラングランズ対応の深化
Grant-in-Aid for Scientific Research (B)
Basic Section 11010:Algebra-related
The University of Tokyo
三枝洋一
From 01 Apr. 2025, To 31 Mar. 2030, Granted
局所志村多様体;局所ラングランズ対応;パーフェクトイド空間;エタールコホモロジー;p進簡約代数群の表現論
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-25K00905/

External funds: others

Galois表現のp進的およびモチーフ論的側面（平成28年度分）
二国間交流事業共同研究・セミナー
From 01 Apr. 2016, To 31 Mar. 2017
伊藤　哲史

Galois表現のp進的およびモチーフ論的側面（平成29年度分）
二国間交流事業共同研究・セミナー
From 01 Apr. 2017, To 31 Mar. 2018
伊藤哲史

Last Updated :2026/10/20

Education

Teaching subject(s)

From 01 Apr. 2026, To 31 Mar. 2027
ILAS Seminar
Z001, Spring, Institute for Liberal Arts and Sciences, 2

From 01 Apr. 2026, To 31 Mar. 2027
Forefront of Mathematics and Mathematical Science II
4139, Fall, Faculty of Science, 2

From 01 Apr. 2026, To 31 Mar. 2027
Exercises in Basic Algebra
2103, Fall, Faculty of Science, 2

From 01 Apr. 2026, To 31 Mar. 2027
Introduction to Algebra
2102, Fall, Faculty of Science, 2

From 01 Apr. 2026, To 31 Mar. 2027
Linear Algebra with Exercises B
N152, Fall, Institute for Liberal Arts and Sciences, 3

From 01 Apr. 2026, To 31 Mar. 2027
Linear Algebra with Exercises A
N151, Spring, Institute for Liberal Arts and Sciences, 3

From 01 Apr. 2026, To 31 Mar. 2027
Seminar on Number Theory D
0515, Fall, Graduate School of Science, 3

From 01 Apr. 2026, To 31 Mar. 2027
Seminar on Number Theory C
0514, Spring, Graduate School of Science, 3

From 01 Apr. 2026, To 31 Mar. 2027
Seminar on Number Theory B
0513, Fall, Graduate School of Science, 3

From 01 Apr. 2026, To 31 Mar. 2027
Seminar on Number Theory A
0512, Spring, Graduate School of Science, 3

From 01 Apr. 2025, To 31 Mar. 2026
ILAS Seminar
Z001, Spring, Institute for Liberal Arts and Sciences, 2

From 01 Apr. 2025, To 31 Mar. 2026
Special study course (Mathematical Science)
5140, Year-long, Faculty of Science, 12

From 01 Apr. 2025, To 31 Mar. 2026
Forefront of Mathematics and Mathematical Science II
4139, Fall, Faculty of Science, 2

From 01 Apr. 2025, To 31 Mar. 2026
Seminar on Number Theory C
0514, Spring, Graduate School of Science, 3

From 01 Apr. 2025, To 31 Mar. 2026
Seminar on Number Theory B
0513, Fall, Graduate School of Science, 3

From 01 Apr. 2025, To 31 Mar. 2026
Seminar on Number Theory A
0512, Spring, Graduate School of Science, 3

From 01 Apr. 2025, To 31 Mar. 2026
Seminar on Number Theory D
0515, Fall, Graduate School of Science, 3

From 01 Apr. 2025, To 31 Mar. 2026
Linear Algebra with Exercises A
N151, Spring, Institute for Liberal Arts and Sciences, 3

From 01 Apr. 2024, To 31 Mar. 2025
ILAS Seminar
Z001, Spring, Institute for Liberal Arts and Sciences, 2

From 01 Apr. 2024, To 31 Mar. 2025
Forefront of Mathematics and Mathematical Science II
4139, Fall, Faculty of Science, 2

From 01 Apr. 2024, To 31 Mar. 2025
Linear Algebra with Exercises A
N151, Spring, Institute for Liberal Arts and Sciences, 3

From 01 Apr. 2024, To 31 Mar. 2025
Seminar on Number Theory B
0513, Fall, Graduate School of Science, 3

From 01 Apr. 2024, To 31 Mar. 2025
Seminar on Number Theory A
0512, Spring, Graduate School of Science, 3

From 01 Apr. 2024, To 31 Mar. 2025
Seminar on Number Theory D
0515, Fall, Graduate School of Science, 3

From 01 Apr. 2024, To 31 Mar. 2025
Seminar on Number Theory C
0514, Spring, Graduate School of Science, 3

From 01 Apr. 2023, To 31 Mar. 2024
ILAS Seminar
Z001, Spring, Institute for Liberal Arts and Sciences, 2

From 01 Apr. 2023, To 31 Mar. 2024
Forefront of Mathematics and Mathematical Science II
4139, Fall, Faculty of Science, 2

From 01 Apr. 2023, To 31 Mar. 2024
Seminar on Number Theory D
0515, Fall, Graduate School of Science, 3

From 01 Apr. 2023, To 31 Mar. 2024
Seminar on Number Theory C
0514, Spring, Graduate School of Science, 3

From 01 Apr. 2023, To 31 Mar. 2024
Seminar on Number Theory B
0513, Fall, Graduate School of Science, 3

From 01 Apr. 2023, To 31 Mar. 2024
Seminar on Number Theory A
0512, Spring, Graduate School of Science, 3

From 01 Apr. 2023, To 31 Mar. 2024
Linear Algebra with Exercises A
N151, Spring, Institute for Liberal Arts and Sciences, 3

From 01 Apr. 2023, To 31 Mar. 2024
Algebra II
3101, Fall, Faculty of Science, 4

From 01 Apr. 2022, To 31 Mar. 2023
Algebra II
3101, Fall, Faculty of Science, 4

From 01 Apr. 2022, To 31 Mar. 2023
Seminar on Number Theory B
0513, Fall, Graduate School of Science, 3

From 01 Apr. 2022, To 31 Mar. 2023
Seminar on Number Theory c
0416, Spring, Graduate School of Science, 3

From 01 Apr. 2022, To 31 Mar. 2023
ILAS Seminar
Z001, Spring, Institute for Liberal Arts and Sciences, 2

From 01 Apr. 2022, To 31 Mar. 2023
Forefront of Mathematics and Mathematical Science I
4138, Spring, Faculty of Science, 2

From 01 Apr. 2022, To 31 Mar. 2023
Seminar on Number Theory d
0417, Fall, Graduate School of Science, 3

From 01 Apr. 2022, To 31 Mar. 2023
Seminar on Number Theory a
0414, Spring, Graduate School of Science, 3

From 01 Apr. 2022, To 31 Mar. 2023
Special study course (Mathematical Science)
5140, Year-long, Faculty of Science, 12

From 01 Apr. 2022, To 31 Mar. 2023
Seminar on Number Theory A
0512, Spring, Graduate School of Science, 3

From 01 Apr. 2022, To 31 Mar. 2023
Seminar on Number Theory b
0415, Fall, Graduate School of Science, 3

From Apr. 2011, To Mar. 2012
代数学II
Fall, 理学部

From Apr. 2012, To Mar. 2013
Exercises in Algebra II
Fall, 理学部

From Apr. 2013, To Mar. 2014
Introduction to Algebra
Fall, 理学部

From Apr. 2013, To Mar. 2014
Mathematics seminary
Year-long, 理学部

From Apr. 2013, To Mar. 2014
Linear Algebra A
Spring, 全学共通科目

From Apr. 2013, To Mar. 2014
Linear Algebra B
Fall, 全学共通科目

From Apr. 2014, To Mar. 2015
Advanced Algebra II
Spring, 理学部

From Apr. 2014, To Mar. 2015
Seminar on Number Theory A
Spring, 理学研究科

From Apr. 2014, To Mar. 2015
Seminar on Number Theory B
Fall, 理学研究科

From Apr. 2014, To Mar. 2015
Seminar on Number Theory C
Spring, 理学研究科

From Apr. 2014, To Mar. 2015
Seminar on Number Theory D
Fall, 理学研究科

From Apr. 2014, To Mar. 2015
Topics in Algebra A
Spring, 理学研究科

From Apr. 2014, To Mar. 2015
Advanced Calculus II - Differential Equations
Fall, 全学共通科目

From Apr. 2015, To Mar. 2016
Mathematics seminary
Year-long, 理学部

From Apr. 2015, To Mar. 2016
Seminar on Number Theory A
Spring, 理学研究科

From Apr. 2015, To Mar. 2016
Seminar on Number Theory B
Fall, 理学研究科

From Apr. 2015, To Mar. 2016
Seminar on Number Theory C
Spring, 理学研究科

From Apr. 2015, To Mar. 2016
Seminar on Number Theory D
Fall, 理学研究科

From Apr. 2015, To Mar. 2016
Linear Algebra with Exercises B
Fall, 全学共通科目

From Apr. 2016, To Mar. 2017
ILAS Seminar
Spring, 全学共通科目

From Apr. 2016, To Mar. 2017
Development of Mathematics - from basic to advanced A
Spring, 理学部

From Apr. 2016, To Mar. 2017
Number Theory
Fall, 理学研究科

From Apr. 2016, To Mar. 2017
Theory of Number
Fall, 理学部

From Apr. 2016, To Mar. 2017
Seminar on Number Theory A
Spring, 理学研究科

From Apr. 2016, To Mar. 2017
Seminar on Number Theory B
Fall, 理学研究科

From Apr. 2016, To Mar. 2017
Seminar on Number Theory C
Spring, 理学研究科

From Apr. 2016, To Mar. 2017
Seminar on Number Theory D
Fall, 理学研究科

From Apr. 2017, To Mar. 2018
ILAS Seminar
Spring, 全学共通科目

From Apr. 2017, To Mar. 2018
Calculus with Exercises A
Spring, 全学共通科目

From Apr. 2017, To Mar. 2018
Seminar on Number Theory A
Spring, 理学研究科

From Apr. 2017, To Mar. 2018
Seminar on Number Theory B
Fall, 理学研究科

From Apr. 2017, To Mar. 2018
Seminar on Number Theory C
Spring, 理学研究科

From Apr. 2017, To Mar. 2018
Seminar on Number Theory D
Fall, 理学研究科

From Apr. 2017, To Mar. 2018
Mathematics seminary
Year-long, 理学部

From Apr. 2018, To Mar. 2019
ILAS Seminar
Spring, 全学共通科目

From Apr. 2018, To Mar. 2019
Exercises in Algebra II
Fall, 理学部

From Apr. 2018, To Mar. 2019
Seminar on Number Theory a
Spring, 理学研究科

From Apr. 2018, To Mar. 2019
Seminar on Number Theory b
Fall, 理学研究科

From Apr. 2018, To Mar. 2019
Seminar on Number Theory c
Spring, 理学研究科

From Apr. 2018, To Mar. 2019
Seminar on Number Theory d
Fall, 理学研究科

From Apr. 2018, To Mar. 2019
Mathematics seminary
Year-long, 理学部

From Apr. 2019, To Mar. 2020
ILAS Seminar
Spring, 全学共通科目

From Apr. 2019, To Mar. 2020
Exercises in Algebra II
Fall, 理学部

From Apr. 2019, To Mar. 2020
Seminar on Number Theory a
Spring, 理学研究科

From Apr. 2019, To Mar. 2020
Seminar on Number Theory b
Fall, 理学研究科

From Apr. 2019, To Mar. 2020
Seminar on Number Theory c
Spring, 理学研究科

From Apr. 2019, To Mar. 2020
Seminar on Number Theory d
Fall, 理学研究科

From Apr. 2019, To Mar. 2020
Mathematics seminary
Year-long, 理学部

From Apr. 2020, To Mar. 2021
ILAS Seminar :Reading "Elementary Number Theory - An Introduction to Arithmetic Geometry -" by Takao Yamazaki
Spring, 全学共通科目

From Apr. 2020, To Mar. 2021
Algebra II
Fall, 理学部

From Apr. 2020, To Mar. 2021
Seminar on Number Theory a
Spring, 理学研究科

From Apr. 2020, To Mar. 2021
Seminar on Number Theory b
Fall, 理学研究科

From Apr. 2020, To Mar. 2021
Seminar on Number Theory c
Spring, 理学研究科

From Apr. 2020, To Mar. 2021
Seminar on Number Theory d
Fall, 理学研究科

From Apr. 2020, To Mar. 2021
Special study course (Mathematical Science)
Year-long, 理学部

From Apr. 2020, To Mar. 2021
Linear Algebra with Exercises A
Spring, 全学共通科目

From Apr. 2021, To Mar. 2022
ILAS Seminar :Reading "Elementary Number Theory - An Introduction to Arithmetic Geometry -" by Takao Yamazaki
Spring, 全学共通科目

From Apr. 2021, To Mar. 2022
Algebra II
Fall, 理学部

From Apr. 2021, To Mar. 2022
Calculus with Exercises A
Spring, 全学共通科目

From Apr. 2021, To Mar. 2022
Seminar on Number Theory a
Spring, 理学研究科

From Apr. 2021, To Mar. 2022
Seminar on Number Theory b
Fall, 理学研究科

From Apr. 2021, To Mar. 2022
Seminar on Number Theory c
Spring, 理学研究科

From Apr. 2021, To Mar. 2022
Seminar on Number Theory d
Fall, 理学研究科

From Apr. 2021, To Mar. 2022
Forefront of Mathematics and Mathematical Science I
Spring, 理学部

From Apr. 2021, To Mar. 2022
Special study course (Mathematical Science)
Year-long, 理学部

Participation in PhD Defense

p-adic Galois representations and completed cohomology of Shimura varieties
AOKI KENSUKE, Graduate School of Science, Chief Examiner
23 Mar. 2026

Deformation and degeneration of p-divisible groups and their applications
INOUE KENTAROU, Graduate School of Science, Chief Examiner
23 Mar. 2026

On the ramified Siegel series
WATANABE MASAHIRO, Graduate School of Science, Sub-chief Examiner
25 Mar. 2024

Birational geometry and compactifications of modular varieties and arithmetic of modular forms
MAEDA YOTA, Graduate School of Science, Chief Examiner
23 Mar. 2023

Part-time lecturer

From 01 Apr. 2023, To 31 Mar. 2024
千葉大学, 大学院理学研究院

Last Updated :2026/10/20

Administration

Faculty management (title, position)

From 01 Apr. 2026, To 31 Mar. 2027
理学研究科 SACRA広報・社会連携部門委員会委員

From 01 Apr. 2026, To 31 Mar. 2027
理学研究科社会連携小委員会委員

From 01 Apr. 2025, To 31 Mar. 2026
理学研究科 MACS運営小委員会委員

From 01 Apr. 2024, To 31 Mar. 2025
理学研究科SACRA国際戦略部門委員会委員

From 01 Apr. 2023, To 31 Mar. 2024
理学研究科SACRA国際戦略部門委員会委員

From 01 Apr. 2022, To 31 Mar. 2023
理学研究科SACRA国際戦略部門委員会委員

From 01 Apr. 2017, To 31 Mar. 2019
高等教育研究開発推進センター教育コンテンツ活用推進委員会委員

From 01 Apr. 2021, To 31 Mar. 2022
理学研究科SACRA国際戦略部門委員会委員

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