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SageMath
E = EllipticCurve("c1")
E.isogeny_class()
Elliptic curves in class 8820.c
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
8820.c1 | 8820c2 | \([0, 0, 0, -4263, 104958]\) | \(10536048/245\) | \(199231522560\) | \([2]\) | \(9216\) | \(0.95403\) | |
8820.c2 | 8820c1 | \([0, 0, 0, -588, -3087]\) | \(442368/175\) | \(8894264400\) | \([2]\) | \(4608\) | \(0.60745\) | \(\Gamma_0(N)\)-optimal |
Rank
sage: E.rank()
The elliptic curves in class 8820.c have rank \(1\).
Complex multiplication
The elliptic curves in class 8820.c do not have complex multiplication.Modular form 8820.2.a.c
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.