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 |
15.1-a8 |
15.1-a |
$8$ |
$16$ |
\(\Q(\sqrt{105}) \) |
$2$ |
$[2, 0]$ |
15.1 |
\( 3 \cdot 5 \) |
\( 2^{12} \cdot 3^{8} \cdot 5^{2} \) |
$1.80201$ |
$(3,a+1), (2a-11)$ |
$1$ |
$\Z/2\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
✓ |
✓ |
✓ |
|
$2$ |
2B |
$1$ |
\( 2^{4} \) |
$0.172294519$ |
$10.19195692$ |
1.370958724 |
\( \frac{1114544804970241}{405} \) |
\( \bigl[a\) , \( 0\) , \( 0\) , \( -1350352143 a - 6243319882\) , \( 61135112671028 a + 282656688470200\bigr] \) |
${y}^2+a{x}{y}={x}^{3}+\left(-1350352143a-6243319882\right){x}+61135112671028a+282656688470200$ |
15.1-b8 |
15.1-b |
$8$ |
$16$ |
\(\Q(\sqrt{105}) \) |
$2$ |
$[2, 0]$ |
15.1 |
\( 3 \cdot 5 \) |
\( 3^{8} \cdot 5^{2} \) |
$1.80201$ |
$(3,a+1), (2a-11)$ |
$0$ |
$\Z/2\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
✓ |
✓ |
✓ |
|
$2$ |
2B |
$16$ |
\( 2^{4} \) |
$1$ |
$0.490422220$ |
3.063059717 |
\( \frac{1114544804970241}{405} \) |
\( \bigl[1\) , \( a + 1\) , \( a\) , \( -1416973 a - 6551334\) , \( -2081450248 a - 9623533989\bigr] \) |
${y}^2+{x}{y}+a{y}={x}^{3}+\left(a+1\right){x}^{2}+\left(-1416973a-6551334\right){x}-2081450248a-9623533989$ |
15.1-c8 |
15.1-c |
$8$ |
$16$ |
\(\Q(\sqrt{105}) \) |
$2$ |
$[2, 0]$ |
15.1 |
\( 3 \cdot 5 \) |
\( 3^{8} \cdot 5^{2} \) |
$1.80201$ |
$(3,a+1), (2a-11)$ |
$1$ |
$\Z/2\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
✓ |
✓ |
✓ |
|
$2$ |
2B |
$4$ |
\( 2^{2} \) |
$2.617916422$ |
$0.490422220$ |
1.002354292 |
\( \frac{1114544804970241}{405} \) |
\( \bigl[1\) , \( 1\) , \( 1\) , \( -2160\) , \( -39540\bigr] \) |
${y}^2+{x}{y}+{y}={x}^{3}+{x}^{2}-2160{x}-39540$ |
15.1-d8 |
15.1-d |
$8$ |
$16$ |
\(\Q(\sqrt{105}) \) |
$2$ |
$[2, 0]$ |
15.1 |
\( 3 \cdot 5 \) |
\( 2^{12} \cdot 3^{8} \cdot 5^{2} \) |
$1.80201$ |
$(3,a+1), (2a-11)$ |
$0$ |
$\Z/2\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
✓ |
✓ |
✓ |
|
$2$ |
2B |
$1$ |
\( 2^{2} \) |
$1$ |
$10.19195692$ |
0.994633150 |
\( \frac{1114544804970241}{405} \) |
\( \bigl[a\) , \( -a\) , \( 0\) , \( -200885 a - 928790\) , \( 110782080 a + 512198220\bigr] \) |
${y}^2+a{x}{y}={x}^{3}-a{x}^{2}+\left(-200885a-928790\right){x}+110782080a+512198220$ |
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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.