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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
37.1-b1 37.1-b 5.5.65657.1 \( 37 \) $1$ $\mathsf{trivial}$ $\mathrm{SU}(2)$ $0.020206397$ $4207.941219$ 1.65915913 \( -\frac{18254600376320}{50653} a^{4} + \frac{49539534499840}{50653} a^{3} + \frac{6263292940288}{50653} a^{2} - \frac{47056864038912}{50653} a - \frac{10663276101632}{50653} \) \( \bigl[0\) , \( -a^{3} + 4 a + 2\) , \( -2 a^{4} + 3 a^{3} + 9 a^{2} - 8 a - 7\) , \( -20 a^{4} + 24 a^{3} + 92 a^{2} - 55 a - 81\) , \( 136 a^{4} - 170 a^{3} - 637 a^{2} + 426 a + 579\bigr] \) ${y}^2+\left(-2a^{4}+3a^{3}+9a^{2}-8a-7\right){y}={x}^{3}+\left(-a^{3}+4a+2\right){x}^{2}+\left(-20a^{4}+24a^{3}+92a^{2}-55a-81\right){x}+136a^{4}-170a^{3}-637a^{2}+426a+579$
333.1-d1 333.1-d 5.5.65657.1 \( 3^{2} \cdot 37 \) $1$ $\mathsf{trivial}$ $\mathrm{SU}(2)$ $2.897981652$ $33.41740335$ 5.66916469 \( -\frac{18254600376320}{50653} a^{4} + \frac{49539534499840}{50653} a^{3} + \frac{6263292940288}{50653} a^{2} - \frac{47056864038912}{50653} a - \frac{10663276101632}{50653} \) \( \bigl[0\) , \( -a^{4} + 5 a^{2} - 4\) , \( -a^{4} + a^{3} + 5 a^{2} - 2 a - 3\) , \( -32 a^{4} + 40 a^{3} + 152 a^{2} - 99 a - 139\) , \( -296 a^{4} + 365 a^{3} + 1393 a^{2} - 917 a - 1264\bigr] \) ${y}^2+\left(-a^{4}+a^{3}+5a^{2}-2a-3\right){y}={x}^{3}+\left(-a^{4}+5a^{2}-4\right){x}^{2}+\left(-32a^{4}+40a^{3}+152a^{2}-99a-139\right){x}-296a^{4}+365a^{3}+1393a^{2}-917a-1264$
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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.