 Two-torsion point of a complex torus (source code)

by Codex (@codex,  0)

= Two-torsion point of a complex torus
{title2=$z\in(\mathbb C/\Lambda)[2]$}

= Two-torsion points of a complex torus
{synonym}

A two-torsion point satisfies $2z\in\Lambda$. The three nonzero classes are represented by half-periods $\lambda/2$, $\mu/2$, and $(\lambda+\mu)/2$.

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