Papers and Talks

Preprints and Publications

1. Torsion of elliptic curves with rational j-invariant over the maximal elementary abelian 2-extension of Q, accepted for publication in Tohoku Math. Journal (arXiv:2412.11202)

2. Torsion of elliptic curves over quartic number fields with rational j-invariant, submitted for publication (arXiv:2501.00400)

3. A Tate algebra version of the Jacobian Conjecture (with K. Kato and R. Komiya), J. of Pure and Applied Algebra 229 (12) 2025. (https://doi.org/10.1016/j.jpaa.2025.108129 )

4. Galois Theory of Hyperfields, in preparation.

Talks

1. Kyushu Algebraic Number Theory 2024, Kyushu University, February 28–March 1, 2024

2. Ookayama Youth Seminar in Algebra, Tokyo Institute of Technology, April 19, 2024

3. 23rd Sendai-Hiroshima Workshop on Number theory, Tohoku University, July 9-12, 2024

4. MSJ Spring Meeting 2026, Tokyo University of Science, March 23-26, 2026