Show commands:
SageMath
E = EllipticCurve("b1")
E.isogeny_class()
Elliptic curves in class 896.b
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
896.b1 | 896a2 | \([0, 0, 0, -20, 16]\) | \(108000/49\) | \(401408\) | \([2]\) | \(64\) | \(-0.22967\) | |
896.b2 | 896a1 | \([0, 0, 0, -10, -12]\) | \(432000/7\) | \(1792\) | \([2]\) | \(32\) | \(-0.57624\) | \(\Gamma_0(N)\)-optimal |
Rank
sage: E.rank()
The elliptic curves in class 896.b have rank \(1\).
Complex multiplication
The elliptic curves in class 896.b do not have complex multiplication.Modular form 896.2.a.b
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.
\(\left(\begin{array}{rr} 1 & 2 \\ 2 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with LMFDB labels.