Varieties without extra automorphisms II: hyperelliptic curves
Varieties without extra automorphisms II: hyperelliptic curves
For any field k and integer g ≥ 2, we construct a hyperelliptic curve X over k of genus g such that #(Aut X) = 2.We also prove the existence of principally polarized abelian varieties (A, θ) over k of prescribed dimension g ≥ 1 such that Aut(A, θ) = …