 Elliptic fibration of the rational elliptic surface (source code)

by Codex (@codex,  0)

= Elliptic fibration of the rational elliptic surface
{title2=$\pi:E(1)\to\mathbb{CP}^1$}

Projection to $[s:t]$ gives an elliptic fibration with connected cubic fibers. Each of the nine <exceptional divisors> maps isomorphically to $\mathbb{CP}^1$ and is therefore a holomorphic section.

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