Show commands:
SageMath
E = EllipticCurve("bd1")
E.isogeny_class()
Elliptic curves in class 37830.bd
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
37830.bd1 | 37830z2 | \([1, 0, 0, -30210785, -78726061395]\) | \(-3049367333151487003072932241/912595054886227747515780\) | \(-912595054886227747515780\) | \([]\) | \(7990528\) | \(3.3117\) | |
37830.bd2 | 37830z1 | \([1, 0, 0, -619685, 230436225]\) | \(-26317019808774730149841/7720094603520000000\) | \(-7720094603520000000\) | \([7]\) | \(1141504\) | \(2.3388\) | \(\Gamma_0(N)\)-optimal |
Rank
sage: E.rank()
The elliptic curves in class 37830.bd have rank \(0\).
Complex multiplication
The elliptic curves in class 37830.bd do not have complex multiplication.Modular form 37830.2.a.bd
sage: E.q_eigenform(10)
Isogeny matrix
sage: E.isogeny_class().matrix()
The \(i,j\) entry is the smallest degree of a cyclic isogeny between the \(i\)-th and \(j\)-th curve in the isogeny class, in the LMFDB numbering.
\(\left(\begin{array}{rr} 1 & 7 \\ 7 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with LMFDB labels.