The results below are complete, since the LMFDB contains all elliptic curves with conductor norm at most 100000 over imaginary quadratic fields with absolute discriminant 4
Note: The completeness Only modular elliptic curves are included
| 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 |
| 8450.9-a1 |
8450.9-a |
$6$ |
$18$ |
\(\Q(\sqrt{-1}) \) |
$2$ |
$[0, 1]$ |
8450.9 |
\( 2 \cdot 5^{2} \cdot 13^{2} \) |
\( 2^{18} \cdot 5^{15} \cdot 13^{7} \) |
$1.71349$ |
$(a+1), (2a+1), (2a+3)$ |
$1$ |
$\Z/2\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
|
|
|
|
$2, 3$ |
2B, 3B |
$1$ |
\( 2^{4} \) |
$2.048802786$ |
$0.119163442$ |
1.953139148 |
\( -\frac{276861163011391}{13000000000} a - \frac{33515586556057}{812500000} \) |
\( \bigl[i\) , \( i\) , \( 0\) , \( 6444 i + 1740\) , \( -79392 i - 200320\bigr] \) |
${y}^2+i{x}{y}={x}^{3}+i{x}^{2}+\left(6444i+1740\right){x}-79392i-200320$ |
| 8450.9-a2 |
8450.9-a |
$6$ |
$18$ |
\(\Q(\sqrt{-1}) \) |
$2$ |
$[0, 1]$ |
8450.9 |
\( 2 \cdot 5^{2} \cdot 13^{2} \) |
\( 2^{6} \cdot 5^{9} \cdot 13^{9} \) |
$1.71349$ |
$(a+1), (2a+1), (2a+3)$ |
$1$ |
$\Z/2\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
|
|
|
|
$2, 3$ |
2B, 3Cs |
$1$ |
\( 2^{4} \) |
$0.682934262$ |
$0.357490328$ |
1.953139148 |
\( \frac{37525044319}{2197000} a - \frac{7169596274}{274625} \) |
\( \bigl[i\) , \( i\) , \( 0\) , \( 524 i - 445\) , \( 6620 i - 2129\bigr] \) |
${y}^2+i{x}{y}={x}^{3}+i{x}^{2}+\left(524i-445\right){x}+6620i-2129$ |
| 8450.9-a3 |
8450.9-a |
$6$ |
$18$ |
\(\Q(\sqrt{-1}) \) |
$2$ |
$[0, 1]$ |
8450.9 |
\( 2 \cdot 5^{2} \cdot 13^{2} \) |
\( 2^{3} \cdot 5^{12} \cdot 13^{12} \) |
$1.71349$ |
$(a+1), (2a+1), (2a+3)$ |
$1$ |
$\Z/2\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
|
|
|
|
$2, 3$ |
2B, 3Cs |
$1$ |
\( 2^{4} \) |
$1.365868524$ |
$0.178745164$ |
1.953139148 |
\( \frac{133816114442969}{301675562500} a - \frac{19082395919017}{301675562500} \) |
\( \bigl[i\) , \( i\) , \( 0\) , \( -266 i - 915\) , \( 19254 i + 12233\bigr] \) |
${y}^2+i{x}{y}={x}^{3}+i{x}^{2}+\left(-266i-915\right){x}+19254i+12233$ |
| 8450.9-a4 |
8450.9-a |
$6$ |
$18$ |
\(\Q(\sqrt{-1}) \) |
$2$ |
$[0, 1]$ |
8450.9 |
\( 2 \cdot 5^{2} \cdot 13^{2} \) |
\( 2^{9} \cdot 5^{24} \cdot 13^{8} \) |
$1.71349$ |
$(a+1), (2a+1), (2a+3)$ |
$1$ |
$\Z/2\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
|
|
|
|
$2, 3$ |
2B, 3B |
$1$ |
\( 2^{4} \) |
$4.097605573$ |
$0.059581721$ |
1.953139148 |
\( -\frac{8418015312387897223}{20629882812500000} a + \frac{2783266907131437289}{20629882812500000} \) |
\( \bigl[i\) , \( i\) , \( 0\) , \( 2684 i + 8060\) , \( -553840 i - 196784\bigr] \) |
${y}^2+i{x}{y}={x}^{3}+i{x}^{2}+\left(2684i+8060\right){x}-553840i-196784$ |
| 8450.9-a5 |
8450.9-a |
$6$ |
$18$ |
\(\Q(\sqrt{-1}) \) |
$2$ |
$[0, 1]$ |
8450.9 |
\( 2 \cdot 5^{2} \cdot 13^{2} \) |
\( 2^{2} \cdot 5^{7} \cdot 13^{7} \) |
$1.71349$ |
$(a+1), (2a+1), (2a+3)$ |
$1$ |
$\Z/2\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
|
|
|
|
$2, 3$ |
2B, 3B |
$1$ |
\( 2^{4} \) |
$0.227644754$ |
$1.072470984$ |
1.953139148 |
\( \frac{31409}{130} a + \frac{101344}{65} \) |
\( \bigl[i\) , \( i\) , \( 0\) , \( -26 i + 30\) , \( 54 i + 8\bigr] \) |
${y}^2+i{x}{y}={x}^{3}+i{x}^{2}+\left(-26i+30\right){x}+54i+8$ |
| 8450.9-a6 |
8450.9-a |
$6$ |
$18$ |
\(\Q(\sqrt{-1}) \) |
$2$ |
$[0, 1]$ |
8450.9 |
\( 2 \cdot 5^{2} \cdot 13^{2} \) |
\( 2 \cdot 5^{8} \cdot 13^{8} \) |
$1.71349$ |
$(a+1), (2a+1), (2a+3)$ |
$1$ |
$\Z/2\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
|
|
|
|
$2, 3$ |
2B, 3B |
$1$ |
\( 2^{4} \) |
$0.455289508$ |
$0.536235492$ |
1.953139148 |
\( \frac{4406742137}{8450} a + \frac{1310300809}{8450} \) |
\( \bigl[i\) , \( i\) , \( 0\) , \( -261 i + 425\) , \( 3077 i + 3197\bigr] \) |
${y}^2+i{x}{y}={x}^{3}+i{x}^{2}+\left(-261i+425\right){x}+3077i+3197$ |
| 8450.9-b1 |
8450.9-b |
$4$ |
$10$ |
\(\Q(\sqrt{-1}) \) |
$2$ |
$[0, 1]$ |
8450.9 |
\( 2 \cdot 5^{2} \cdot 13^{2} \) |
\( 2 \cdot 5^{16} \cdot 13^{9} \) |
$1.71349$ |
$(a+1), (2a+1), (2a+3)$ |
0 |
$\Z/2\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
|
|
|
|
$2, 5$ |
2B, 5B |
$4$ |
\( 2^{3} \) |
$1$ |
$0.199340379$ |
1.594723038 |
\( -\frac{80398914857}{19531250} a - \frac{197826917099}{19531250} \) |
\( \bigl[i\) , \( -1\) , \( 0\) , \( 1741 i - 362\) , \( 26365 i + 15070\bigr] \) |
${y}^2+i{x}{y}={x}^{3}-{x}^{2}+\left(1741i-362\right){x}+26365i+15070$ |
| 8450.9-b2 |
8450.9-b |
$4$ |
$10$ |
\(\Q(\sqrt{-1}) \) |
$2$ |
$[0, 1]$ |
8450.9 |
\( 2 \cdot 5^{2} \cdot 13^{2} \) |
\( 2^{2} \cdot 5^{11} \cdot 13^{9} \) |
$1.71349$ |
$(a+1), (2a+1), (2a+3)$ |
0 |
$\Z/2\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
|
|
|
|
$2, 5$ |
2B, 5B |
$1$ |
\( 2^{4} \) |
$1$ |
$0.398680759$ |
1.594723038 |
\( \frac{10462207}{6250} a - \frac{2706038}{3125} \) |
\( \bigl[1\) , \( 1\) , \( 0\) , \( 86 i - 277\) , \( 498 i - 2511\bigr] \) |
${y}^2+{x}{y}={x}^{3}+{x}^{2}+\left(86i-277\right){x}+498i-2511$ |
| 8450.9-b3 |
8450.9-b |
$4$ |
$10$ |
\(\Q(\sqrt{-1}) \) |
$2$ |
$[0, 1]$ |
8450.9 |
\( 2 \cdot 5^{2} \cdot 13^{2} \) |
\( 2^{10} \cdot 5^{7} \cdot 13^{9} \) |
$1.71349$ |
$(a+1), (2a+1), (2a+3)$ |
0 |
$\Z/2\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
|
|
|
|
$2, 5$ |
2B, 5B |
$1$ |
\( 2^{4} \) |
$1$ |
$0.398680759$ |
1.594723038 |
\( -\frac{523313}{160} a + \frac{424661}{40} \) |
\( \bigl[1\) , \( -i - 1\) , \( 1\) , \( -451 i + 26\) , \( -2160 i + 2404\bigr] \) |
${y}^2+{x}{y}+{y}={x}^{3}+\left(-i-1\right){x}^{2}+\left(-451i+26\right){x}-2160i+2404$ |
| 8450.9-b4 |
8450.9-b |
$4$ |
$10$ |
\(\Q(\sqrt{-1}) \) |
$2$ |
$[0, 1]$ |
8450.9 |
\( 2 \cdot 5^{2} \cdot 13^{2} \) |
\( 2^{5} \cdot 5^{8} \cdot 13^{9} \) |
$1.71349$ |
$(a+1), (2a+1), (2a+3)$ |
0 |
$\Z/2\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
|
|
|
|
$2, 5$ |
2B, 5B |
$4$ |
\( 2^{3} \) |
$1$ |
$0.199340379$ |
1.594723038 |
\( -\frac{12916359143}{200} a + \frac{17274394699}{200} \) |
\( \bigl[i\) , \( i + 1\) , \( i\) , \( -7071 i + 367\) , \( 147448 i - 171820\bigr] \) |
${y}^2+i{x}{y}+i{y}={x}^{3}+\left(i+1\right){x}^{2}+\left(-7071i+367\right){x}+147448i-171820$ |
*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.