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SageMath
E = EllipticCurve("bc1")
E.isogeny_class()
Elliptic curves in class 54150bc
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
54150.bi4 | 54150bc1 | \([1, 0, 1, 112624, 12690398]\) | \(214921799/218880\) | \(-160896913020000000\) | \([2]\) | \(1105920\) | \(1.9885\) | \(\Gamma_0(N)\)-optimal |
54150.bi3 | 54150bc2 | \([1, 0, 1, -609376, 116658398]\) | \(34043726521/11696400\) | \(8597928789506250000\) | \([2, 2]\) | \(2211840\) | \(2.3351\) | |
54150.bi2 | 54150bc3 | \([1, 0, 1, -4038876, -3038481602]\) | \(9912050027641/311647500\) | \(229089549983554687500\) | \([2]\) | \(4423680\) | \(2.6816\) | |
54150.bi1 | 54150bc4 | \([1, 0, 1, -8731876, 9928638398]\) | \(100162392144121/23457780\) | \(17243623850065312500\) | \([2]\) | \(4423680\) | \(2.6816\) |
Rank
sage: E.rank()
The elliptic curves in class 54150bc have rank \(1\).
Complex multiplication
The elliptic curves in class 54150bc do not have complex multiplication.Modular form 54150.2.a.bc
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 Cremona numbering.
\(\left(\begin{array}{rrrr} 1 & 2 & 4 & 4 \\ 2 & 1 & 2 & 2 \\ 4 & 2 & 1 & 4 \\ 4 & 2 & 4 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with Cremona labels.