= Eisenstein sextic presentation of the splitting field of X3 minus 3 over Q3
{c}
{title2=$\pi=(\zeta_3-1)/\sqrt[3]{3},\quad\pi^6=-3$}
If $a^3=3$ and $\zeta_3$ is a primitive cube root of unity, then $\pi^3=1+2\zeta_3$ and $\pi^6=-3$. The <Eisenstein polynomial> $X^6+3$ therefore presents the entire degree-six <splitting field>, and $\pi$ is a <uniformizer>. Its normalised <valuation> gives $v_L(3)=6$, $v_L(a)=2$ and $v_L(\zeta_3-1)=3$. The order-three automorphisms displace $\pi$ with <valuation> four, whereas transpositions displace it with <valuation> one.
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