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Label Class Base field Conductor norm Rank Torsion CM Regulator Period Leading coeff j-invariant Weierstrass coefficients Weierstrass equation
1521.1-CMb1 1521.1-CMb \(\Q(\sqrt{-3}) \) \( 3^{2} \cdot 13^{2} \) $0$ $\mathsf{trivial}$ $-3$ $1$ $0.956447781$ 1.104410767 \( 0 \) \( \bigl[0\) , \( 0\) , \( a\) , \( 0\) , \( -136 a + 165\bigr] \) ${y}^2+a{y}={x}^{3}-136a+165$
1521.1-CMa1 1521.1-CMa \(\Q(\sqrt{-3}) \) \( 3^{2} \cdot 13^{2} \) $0$ $\Z/3\Z$ $-3$ $1$ $3.448521516$ 1.327336550 \( 0 \) \( \bigl[0\) , \( 0\) , \( a\) , \( 0\) , \( -4 a + 2\bigr] \) ${y}^2+a{y}={x}^{3}-4a+2$
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  *The rank, regulator and analytic order of Ш are not known for all curves in the database; curves for which these are unknown will not appear in searches specifying one of these quantities.