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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
5.1-b4 5.1-b 5.5.65657.1 \( 5 \) 0 $\Z/5\Z$ $\mathrm{SU}(2)$ $1$ $1042.463531$ 0.813673832 \( \frac{81829946}{3125} a^{4} - \frac{143808649}{3125} a^{3} - \frac{300612723}{3125} a^{2} + \frac{393132181}{3125} a + \frac{109010922}{3125} \) \( \bigl[-a^{4} + 2 a^{3} + 4 a^{2} - 5 a - 2\) , \( -2 a^{4} + 3 a^{3} + 9 a^{2} - 10 a - 8\) , \( a^{4} - a^{3} - 4 a^{2} + 2 a + 3\) , \( a^{4} - 2 a^{3} - 6 a^{2} + 5 a + 11\) , \( -2 a^{4} + 3 a^{3} + 9 a^{2} - 9 a - 9\bigr] \) ${y}^2+\left(-a^{4}+2a^{3}+4a^{2}-5a-2\right){x}{y}+\left(a^{4}-a^{3}-4a^{2}+2a+3\right){y}={x}^{3}+\left(-2a^{4}+3a^{3}+9a^{2}-10a-8\right){x}^{2}+\left(a^{4}-2a^{3}-6a^{2}+5a+11\right){x}-2a^{4}+3a^{3}+9a^{2}-9a-9$
25.1-c4 25.1-c 5.5.65657.1 \( 5^{2} \) $1$ $\mathsf{trivial}$ $\mathrm{SU}(2)$ $0.044698779$ $815.8175314$ 2.84628363 \( \frac{81829946}{3125} a^{4} - \frac{143808649}{3125} a^{3} - \frac{300612723}{3125} a^{2} + \frac{393132181}{3125} a + \frac{109010922}{3125} \) \( \bigl[a^{4} - a^{3} - 4 a^{2} + 2 a + 3\) , \( -3 a^{4} + 4 a^{3} + 13 a^{2} - 10 a - 10\) , \( a^{2} - a - 2\) , \( 4 a^{4} - 3 a^{3} - 20 a^{2} + 5 a + 15\) , \( -11 a^{4} + 49 a^{2} + 27 a - 4\bigr] \) ${y}^2+\left(a^{4}-a^{3}-4a^{2}+2a+3\right){x}{y}+\left(a^{2}-a-2\right){y}={x}^{3}+\left(-3a^{4}+4a^{3}+13a^{2}-10a-10\right){x}^{2}+\left(4a^{4}-3a^{3}-20a^{2}+5a+15\right){x}-11a^{4}+49a^{2}+27a-4$
45.1-b4 45.1-b 5.5.65657.1 \( 3^{2} \cdot 5 \) 0 $\Z/3\Z$ $\mathrm{SU}(2)$ $1$ $3353.505766$ 1.45417284 \( \frac{81829946}{3125} a^{4} - \frac{143808649}{3125} a^{3} - \frac{300612723}{3125} a^{2} + \frac{393132181}{3125} a + \frac{109010922}{3125} \) \( \bigl[a^{2} - a - 1\) , \( -a^{2} + a + 2\) , \( -a^{4} + 2 a^{3} + 4 a^{2} - 6 a - 3\) , \( 4 a^{4} - 5 a^{3} - 19 a^{2} + 13 a + 17\) , \( 8 a^{4} - 10 a^{3} - 37 a^{2} + 25 a + 32\bigr] \) ${y}^2+\left(a^{2}-a-1\right){x}{y}+\left(-a^{4}+2a^{3}+4a^{2}-6a-3\right){y}={x}^{3}+\left(-a^{2}+a+2\right){x}^{2}+\left(4a^{4}-5a^{3}-19a^{2}+13a+17\right){x}+8a^{4}-10a^{3}-37a^{2}+25a+32$
225.1-a4 225.1-a 5.5.65657.1 \( 3^{2} \cdot 5^{2} \) 0 $\mathsf{trivial}$ $\mathrm{SU}(2)$ $1$ $234.7812907$ 1.83253789 \( \frac{81829946}{3125} a^{4} - \frac{143808649}{3125} a^{3} - \frac{300612723}{3125} a^{2} + \frac{393132181}{3125} a + \frac{109010922}{3125} \) \( \bigl[-a^{4} + 2 a^{3} + 5 a^{2} - 7 a - 4\) , \( a^{3} - a^{2} - 4 a\) , \( -2 a^{4} + 3 a^{3} + 9 a^{2} - 9 a - 6\) , \( 3 a^{4} - 5 a^{3} - 12 a^{2} + 16 a + 2\) , \( 9 a^{4} - 20 a^{3} - 32 a^{2} + 65 a + 14\bigr] \) ${y}^2+\left(-a^{4}+2a^{3}+5a^{2}-7a-4\right){x}{y}+\left(-2a^{4}+3a^{3}+9a^{2}-9a-6\right){y}={x}^{3}+\left(a^{3}-a^{2}-4a\right){x}^{2}+\left(3a^{4}-5a^{3}-12a^{2}+16a+2\right){x}+9a^{4}-20a^{3}-32a^{2}+65a+14$
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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.