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Label Class Base field Conductor norm Rank Torsion CM Sato-Tate Regulator Period Leading coeff j-invariant Weierstrass coefficients Weierstrass equation
23.3-a3 23.3-a \(\Q(\zeta_{11})^+\) \( 23 \) 0 $\Z/10\Z$ $\mathrm{SU}(2)$ $1$ $1986.252133$ 0.820765345 \( \frac{46971305784}{6436343} a^{4} - \frac{20963315451}{6436343} a^{3} - \frac{187181929672}{6436343} a^{2} + \frac{62971709137}{6436343} a + \frac{147346928834}{6436343} \) \( \bigl[a^{4} - 4 a^{2} + a + 3\) , \( a^{3} + a^{2} - 4 a - 1\) , \( a^{4} - 4 a^{2} + a + 3\) , \( -2 a^{4} + a^{3} + 9 a^{2} - 4 a - 6\) , \( -2 a^{4} + 8 a^{2} - 4\bigr] \) ${y}^2+\left(a^{4}-4a^{2}+a+3\right){x}{y}+\left(a^{4}-4a^{2}+a+3\right){y}={x}^{3}+\left(a^{3}+a^{2}-4a-1\right){x}^{2}+\left(-2a^{4}+a^{3}+9a^{2}-4a-6\right){x}-2a^{4}+8a^{2}-4$
529.13-a3 529.13-a \(\Q(\zeta_{11})^+\) \( 23^{2} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $349.8876466$ 1.44581672 \( \frac{46971305784}{6436343} a^{4} - \frac{20963315451}{6436343} a^{3} - \frac{187181929672}{6436343} a^{2} + \frac{62971709137}{6436343} a + \frac{147346928834}{6436343} \) \( \bigl[a^{4} - 4 a^{2} + 2\) , \( -a^{3} + a^{2} + 2 a - 1\) , \( a^{4} - 4 a^{2} + 3\) , \( -2 a^{4} + 6 a^{2} - 2 a - 4\) , \( 5 a^{4} + 3 a^{3} - 15 a^{2} - 10 a + 1\bigr] \) ${y}^2+\left(a^{4}-4a^{2}+2\right){x}{y}+\left(a^{4}-4a^{2}+3\right){y}={x}^{3}+\left(-a^{3}+a^{2}+2a-1\right){x}^{2}+\left(-2a^{4}+6a^{2}-2a-4\right){x}+5a^{4}+3a^{3}-15a^{2}-10a+1$
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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.