Shushi Harashita

collaborators

2 papers

math.AG2026

Automorphism groups of hyperelliptic curves of $2$ -rank zero

Kohtaro Yamaguchi, Shushi Harashita

In this paper, we determine the reduced automorphism groups of hyperelliptic curves of a small genus in characteristic $2$ , when they are of $2$ -rank $0$ . Such a curve is an Artin-…

math.NT2026

The Lang-Trotter conjecture on average for genus- $2$ curves with $S_{3}$ reduced automorphism group

Chihiro Ando, Shushi Harashita

For an elliptic curve $E$ over $Q$ without complex multiplication, Lang and Trotter conjectured that the number of primes $p < X$ at which $E$ has a supersingular reduction…

Automorphism groups of hyperelliptic curves of 2-rank zero

The Lang-Trotter conjecture on average for genus-2 curves with S3​ reduced automorphism group

Automorphism groups of hyperelliptic curves of $2$ -rank zero

The Lang-Trotter conjecture on average for genus- $2$ curves with $S_{3}$ reduced automorphism group