Naganori Yamaguchi

Position: Institute of Science Tokyo (JSPS PD)

Expertise: Arithmetic Geometry, Anabelian Geometry

Email: yamaguchi.n.ac(at)m.titech.ac.jp

ORCID: 0000-0002-0347-2746

Researchmap ID: R000054174

ArXiv: URL

Papers

• Refereed Journal Articles:
  • Naganori Yamaguchi, The geometrically $m$-step solvable Grothendieck conjecture for affine hyperbolic curves over finitely generated fields
    • Journal of the London Mathematical Society, Volume 109, issue 5, May 2024, e12912. (DOI), arXiv: 2302.09253 (URL)
  • Naganori Yamaguchi, The geometrically $m$-step solvable Grothendieck conjecture for genus $0$ curves over finitely generated fields
    • Journal of Algebra, Volume 629, September 2023, Pages 191–226. (DOI), arXiv: 2010.00290 (URL)
• Refereed Proceedings:
  • Naganori Yamaguchi, A survey of known results on the $m$-step solvable anabelian geometry for hyperbolic curves
    • RIMS Kokyuroku Bessatsu (Forthcoming), arXiv: 2204.08008 (URL)
• Preprints (not peer-reviewed):
  • Ryoji Shimizu and Naganori Yamaguchi, Étale fundamental groups of smooth arithmetic surfaces and the Grothendieck conjecture
    • arXiv: 2511.06725 (URL)
  • Benjamin Collas, Takahiro Murotani, and Naganori Yamaguchi, Symmetries of spaces and numbers -- anabelian geometry
    • arXiv: 2508.01588 (URL)
  • Naganori Yamaguchi, A refined version of the geometrically $m$-step solvable Grothendieck conjecture for genus $0$ curves over finitely generated fields
    • arXiv: 2407.09906 (URL)
• Notes:
  • E. Caeiro, A. Klughertz, S. Philip, and N. Yamaguchi, Notes from “Atelier de Géométrie Arithmétique” – Spaces and perfectoids, edited by S. Philip (PDF)
  • 山口永悟, 遠アーベル幾何学における$m$階可解グロタンディーク予想について (PDF)

Talks

1. 2025/09/03: Anabelian Geometry in Yokohama 2025 (URL), Kanagawa University, The anabelian geometry of arithmetic surfaces (Joint work with R. Shimizu)
2. 2025/03/31: Spring seminar on Arithmetic Galois theory in Toyonaka 2025 (URL), Osaka University, Finite Step Solvable Aspects of Anabelian Geometry
3. 2024/11/23: 北大数論セミナー (URL), Hokkaido University, The Finite-Step Solvability of Anabelian Geometry
4. 2024/10/25: 九州代数学セミナー (URL), Kyushu University, Anabelian geometry and $m$-step solvable reconstruction
5. 2024/03/12: Anabelian Geometry in Tokyo 2024 (URL), Tokyo Institute of Technology, The $m$-step solvable reconstruction for the Grothendieck conjecture in Anabelian Geometry
6. 2024/02/15: Mathsci Freshman Seminar 2024 (URL), Nagoya University, Recent developments for $m$-step solvable Anabelian Geometry
7. 2023/07/14: 22th Hiroshima-Sendai Workshop on Number Theory (URL), Hiroshima University, New developments in anabelian geometry by using $m$-step reconstruction
8. 2023/04/17: Arithmetic & Homotopic Galois Theory seminar of the International Research Network (URL), RIMS Kyoto University (Invited Talk), Anabelian geometry and $m$-step reconstruction
9. 2023/03/28: Low Dimensional Topology and Number Theory XIV (URL), Kyushu University (Invited Talk), On the development of anabelian geometry using the maximal geometrically $m$-step solvable quotient of arithmetic fundamental groups
10. 2023/03/08: The 19th Mathematics Conference for Young Researchers (URL), Hokkaido University (Technical Report: URL), 遠アーベル幾何学におけるm 次可解グロタンディーク予想について
11. 2021/12/07: The Japan Europe Number Theory Exchange Seminar (URL), Online (Invited Talk), The $m$-step solvable anabelian geometry for hyperbolic curves over finitely generated fields
12. 2020/12/02: Algebraic Number Theory and Related Topics 2020 (URL), RIMS Kyoto University, 種数0の曲線における導来商版Grothendieck予想について
13. 2020/09/09: 19th Sendai-Hiroshima Number Theory Conference (URL), Tohoku University, The $m$-step solvable Grothendieck conjecture for genus $0$ curves over finitely generated fields
14. 2020/08/19: 2nd Kyoto-Hefei Workshop on Arithmetic Geometry 2020 (URL), Online (Invited Talk), The $m$-step solvable Grothendieck conjecture for genus $0$ curves over finitely generated fields
15. 2020/08/11: Kyushu Algebraic Number Theory 2020 (URL), Kyushu University, The $m$-step solvable Grothendieck conjecture for genus $0$ curves over finitely generated fields

Career, Education

• 2024/09/05 - 2025/03/31: Tokyo Denki University Part-time Teacher "Calculus II (1EJ・EH・ES)"
• 2023/09/05 - 2024/03/31: Tokyo Denki University Part-time Teacher "Calculus II (1EJ・EH・ES)"
• 2023/04/01 - 2026/03/31: Japan Society for the Promotion of Science Research Fellow PD (URL)
• 2021/04/01 - 2023/03/31: Japan Society for the Promotion of Science Research Fellow DC2 (URL)
• 2020/04/01 - 2023/03/23: Kyoto University, Graduate School of Science, Division of Mathematics and Mathematical SciencesDepartment of Mathematics, Doctoral Program (Completed) [Doctoral thesis]
• 2018/04/01 - 2020/03/23: Kyoto University, Graduate School of Science, Division of Mathematics and Mathematical SciencesDepartment of Mathematics, Master's Program (Completed)
• 2014/04/01 - 2018/03/26: Tokyo Institute of Technology, Department of Mathematics, Bachelor's Program (Graduated)

Research funds

• 2023/04/25 – 2026/03/31: JSPS KAKENHI Project/Area Number 23KJ0881 (URL)
• 2021/04/25 – 2023/03/31: JSPS KAKENHI Project/Area Number 21J11884 (URL)

Organize

• Atelier de Géométrie Arithmétique - 数論幾何学のアトリエ:
  • 2025/09/26: Summer 2025 "Étale homotopy theory and application", (URL), RIMS kyoto University and Paris
  • 2024/07/19: Summer 2024 "Spaces and perfectoids towards a perfectoid Siegel modular space" (URL), RIMS kyoto University and Paris
  • 2024/02/24: Winter 2024 "Around the Grothendieck-Teichmüller group" (URL), RIMS kyoto University and Paris
  • 2023/06/27: Summer 2023 "Local-global principles and the patching method" (URL), RIMS kyoto University and Paris
• Anabelian Geometry Workshop:
  • 2025/09/2-3: Anabelian Geometry in Yokohama 2025 (URL), Kanagawa University
  • 2024/03/11-12: Anabelian Geometry in Tokyo 2024 (URL), Tokyo Institute of Technology
• Ookayama Youth Seminar in Algebra (ongoing), Institute of Science Tokyo

Memberships

• The Mathematical Society of Japan (URL)
• Research Fellow, Tokyo Institute of Technology (URL)
• Reviewer for MathSciNet (URL)
• “Arithmetic and Homotopic Galois Theory” RIMS-LPP-ENS International Research Network (URL)

Nice URLs

• Homepage:
  • Shun Ishii (URL)
  • Séverin Philip (URL)
  • Ryo Ishizuka (URL)
  • Seung-Hyeon Hyeon (URL)
  • Lucas Hamada (URL)
  • Takahiro Murotani (URL)
• Other:
  • My bookshelf (URL)