2 papers
math.NT2026
Fields of definition of -torsion points of elliptic curves and their ramification
Yoshiyasu Ozeki, Manabu Yoshida
Let be an elliptic curve over . We study the field generated by the -torsion points of . When has good reduction, we determine not…
math.NT2025
Torsion of elliptic curves over with good reduction in cyclotomic extensions
Yoshiyasu Ozeki, Manabu Yoshida
In this paper, for every prime and every , we classify the structure of the torsion subgroup of the group of -rational points of ellipt…