Sequences of Jacobian Varieties with Torsion Divisors of Quadratic Order

Torsion and Tamagawa numbers

“…An equation for a curve X/Q(λ) of genus 2 whose Jacobian has a point of order N = 22 is given in [60], page 355. Unfortunately, the Jacobian of the curve defined by the given equation does not have a Q(λ)-rational torsion point of order 22.…”