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Results (4 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
84.1-a1 84.1-a \(\Q(\sqrt{21}) \) \( 2^{2} \cdot 3 \cdot 7 \) 0 $\Z/4\Z$ $\mathrm{SU}(2)$ $1$ $2.486887276$ 2.170733179 \( -\frac{7189057}{16128} \) \( \bigl[a\) , \( a + 1\) , \( 1\) , \( 22 a - 52\) , \( 166 a - 457\bigr] \) ${y}^2+a{x}{y}+{y}={x}^{3}+\left(a+1\right){x}^{2}+\left(22a-52\right){x}+166a-457$
84.1-b1 84.1-b \(\Q(\sqrt{21}) \) \( 2^{2} \cdot 3 \cdot 7 \) $1$ $\Z/8\Z$ $\mathrm{SU}(2)$ $0.553231005$ $12.07873502$ 1.458204113 \( -\frac{7189057}{16128} \) \( \bigl[1\) , \( 1\) , \( 1\) , \( -4\) , \( 5\bigr] \) ${y}^2+{x}{y}+{y}={x}^{3}+{x}^{2}-4{x}+5$
252.1-b1 252.1-b \(\Q(\sqrt{21}) \) \( 2^{2} \cdot 3^{2} \cdot 7 \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $3.164303633$ 1.381015326 \( -\frac{7189057}{16128} \) \( \bigl[a + 1\) , \( a + 1\) , \( 0\) , \( 16 a - 29\) , \( -83 a + 237\bigr] \) ${y}^2+\left(a+1\right){x}{y}={x}^{3}+\left(a+1\right){x}^{2}+\left(16a-29\right){x}-83a+237$
252.1-c1 252.1-c \(\Q(\sqrt{21}) \) \( 2^{2} \cdot 3^{2} \cdot 7 \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $3.164303633$ 1.381015326 \( -\frac{7189057}{16128} \) \( \bigl[a\) , \( a\) , \( 1\) , \( -11 a - 21\) , \( 63 a + 110\bigr] \) ${y}^2+a{x}{y}+{y}={x}^{3}+a{x}^{2}+\left(-11a-21\right){x}+63a+110$
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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.