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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
23.1-a1 23.1-a \(\Q(\zeta_{11})^+\) \( 23 \) 0 $\Z/10\Z$ $\mathrm{SU}(2)$ $1$ $1986.252133$ 0.820765345 \( -\frac{47053068568}{6436343} a^{4} + \frac{46268012320}{6436343} a^{3} + \frac{141240968488}{6436343} a^{2} - \frac{112796046627}{6436343} a + \frac{7676072842}{6436343} \) \( \bigl[a^{3} + a^{2} - 2 a - 2\) , \( -a^{4} - a^{3} + 5 a^{2} + 4 a - 4\) , \( a^{3} - 3 a + 1\) , \( 2 a^{3} + a^{2} - 3 a + 1\) , \( 2 a^{4} - 4 a^{2} + a\bigr] \) ${y}^2+\left(a^{3}+a^{2}-2a-2\right){x}{y}+\left(a^{3}-3a+1\right){y}={x}^{3}+\left(-a^{4}-a^{3}+5a^{2}+4a-4\right){x}^{2}+\left(2a^{3}+a^{2}-3a+1\right){x}+2a^{4}-4a^{2}+a$
529.12-a1 529.12-a \(\Q(\zeta_{11})^+\) \( 23^{2} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $349.8876466$ 1.44581672 \( -\frac{47053068568}{6436343} a^{4} + \frac{46268012320}{6436343} a^{3} + \frac{141240968488}{6436343} a^{2} - \frac{112796046627}{6436343} a + \frac{7676072842}{6436343} \) \( \bigl[a^{4} + a^{3} - 3 a^{2} - 2 a + 1\) , \( a^{3} + a^{2} - 3 a - 3\) , \( a^{2} - 1\) , \( 8 a^{4} + 5 a^{3} - 22 a^{2} - 9 a + 5\) , \( 4 a^{4} + 7 a^{3} - 7 a^{2} + a + 7\bigr] \) ${y}^2+\left(a^{4}+a^{3}-3a^{2}-2a+1\right){x}{y}+\left(a^{2}-1\right){y}={x}^{3}+\left(a^{3}+a^{2}-3a-3\right){x}^{2}+\left(8a^{4}+5a^{3}-22a^{2}-9a+5\right){x}+4a^{4}+7a^{3}-7a^{2}+a+7$
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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.