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Results (3 matches)

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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
91.1-a3 91.1-a \(\Q(\zeta_{7})^+\) \( 7 \cdot 13 \) 0 $\Z/2\Z\oplus\Z/8\Z$ $\mathrm{SU}(2)$ $1$ $145.8010047$ 0.650897342 \( -\frac{3698907677516}{199927} a^{2} + \frac{293174005427}{28561} a + \frac{8312780816110}{199927} \) \( \bigl[a^{2} - 2\) , \( a^{2} - 3\) , \( 0\) , \( -4\) , \( -3 a^{2} - a + 9\bigr] \) ${y}^2+\left(a^{2}-2\right){x}{y}={x}^{3}+\left(a^{2}-3\right){x}^{2}-4{x}-3a^{2}-a+9$
637.3-a3 637.3-a \(\Q(\zeta_{7})^+\) \( 7^{2} \cdot 13 \) 0 $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $15.69527055$ 1.121090754 \( -\frac{3698907677516}{199927} a^{2} + \frac{293174005427}{28561} a + \frac{8312780816110}{199927} \) \( \bigl[a^{2} + a - 1\) , \( -a^{2} + 3\) , \( a + 1\) , \( -19 a^{2} + 24 a - 7\) , \( -44 a^{2} + 97 a - 39\bigr] \) ${y}^2+\left(a^{2}+a-1\right){x}{y}+\left(a+1\right){y}={x}^{3}+\left(-a^{2}+3\right){x}^{2}+\left(-19a^{2}+24a-7\right){x}-44a^{2}+97a-39$
1183.5-c5 1183.5-c \(\Q(\zeta_{7})^+\) \( 7 \cdot 13^{2} \) 0 $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $16.79636781$ 1.199740558 \( -\frac{3698907677516}{199927} a^{2} + \frac{293174005427}{28561} a + \frac{8312780816110}{199927} \) \( \bigl[a + 1\) , \( 1\) , \( a^{2} + a - 1\) , \( -28 a^{2} + 51 a - 23\) , \( 96 a^{2} - 212 a + 65\bigr] \) ${y}^2+\left(a+1\right){x}{y}+\left(a^{2}+a-1\right){y}={x}^{3}+{x}^{2}+\left(-28a^{2}+51a-23\right){x}+96a^{2}-212a+65$
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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.