Base field \(\Q(\sqrt{21}) \)
Generator \(a\), with minimal polynomial \( x^{2} - x - 5 \); class number \(1\).
Elliptic curves in class 729.1-a over \(\Q(\sqrt{21}) \)
Isogeny class 729.1-a contains 2 curves linked by isogenies of degree 3.
| Curve label | Weierstrass Coefficients |
|---|---|
| 729.1-a1 | \( \bigl[0\) , \( 0\) , \( a + 1\) , \( 0\) , \( -15 a - 27\bigr] \) |
| 729.1-a2 | \( \bigl[0\) , \( 0\) , \( a + 1\) , \( 0\) , \( -3\bigr] \) |
Rank
Rank: \( 1 \)Isogeny matrix
\(\left(\begin{array}{rr} 1 & 3 \\ 3 & 1 \end{array}\right)\)
Isogeny graph
