Label
Class
Class size
Class degree
Base field
Field degree
Field signature
Conductor
Conductor norm
Discriminant norm
Root analytic conductor
Bad primes
Rank
Torsion
CM
CM
Sato-Tate
$\Q$-curve
Base change
Semistable
Potentially good
Nonmax $\ell$
mod-$\ell$ images
$Ш_{\textrm{an}}$
Tamagawa
Regulator
Period
Leading coeff
j-invariant
Weierstrass coefficients
Weierstrass equation
9.1-a1
9.1-a
$2$
$11$
4.4.19821.1
$4$
$[4, 0]$
9.1
\( 3^{2} \)
\( 3^{7} \)
$16.55700$
$(-1/3a^3-1/3a^2+3a+2)$
$0 \le r \le 1$
$\mathsf{trivial}$
$\textsf{no}$
$\mathrm{SU}(2)$
$11$
11B.10.2
\( 2 \)
$1$
$0.106055840$
3.742242954
\( -17320935403935602154 a^{3} + \frac{70045782250784531003}{3} a^{2} + \frac{391326656179292150729}{3} a - 149319306081545580681 \)
\( \bigl[a^{2} - 4\) , \( \frac{1}{3} a^{3} + \frac{1}{3} a^{2} - 4 a\) , \( a^{2} - 4\) , \( 1899 a^{3} - 3107 a^{2} - 25597 a - 9911\) , \( 107727 a^{3} - 331234 a^{2} - 1894883 a - 638778\bigr] \)
${y}^2+\left(a^{2}-4\right){x}{y}+\left(a^{2}-4\right){y}={x}^{3}+\left(\frac{1}{3}a^{3}+\frac{1}{3}a^{2}-4a\right){x}^{2}+\left(1899a^{3}-3107a^{2}-25597a-9911\right){x}+107727a^{3}-331234a^{2}-1894883a-638778$
9.1-a2
9.1-a
$2$
$11$
4.4.19821.1
$4$
$[4, 0]$
9.1
\( 3^{2} \)
\( 3^{17} \)
$16.55700$
$(-1/3a^3-1/3a^2+3a+2)$
$0 \le r \le 1$
$\mathsf{trivial}$
$\textsf{no}$
$\mathrm{SU}(2)$
$11$
11B.10.1
\( 2 \)
$1$
$141.1603238$
3.742242954
\( -\frac{73343}{729} a^{3} + \frac{24131}{729} a^{2} + \frac{615892}{729} a + \frac{18719}{27} \)
\( \bigl[a^{2} - 4\) , \( \frac{1}{3} a^{3} + \frac{1}{3} a^{2} - 4 a\) , \( a^{2} - 4\) , \( -a^{3} + 3 a^{2} + 8 a + 4\) , \( 3 a^{3} + 8 a^{2} - 11 a - 3\bigr] \)
${y}^2+\left(a^{2}-4\right){x}{y}+\left(a^{2}-4\right){y}={x}^{3}+\left(\frac{1}{3}a^{3}+\frac{1}{3}a^{2}-4a\right){x}^{2}+\left(-a^{3}+3a^{2}+8a+4\right){x}+3a^{3}+8a^{2}-11a-3$
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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.