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SageMath
E = EllipticCurve("a1")
E.isogeny_class()
Elliptic curves in class 13200a
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
13200.p3 | 13200a1 | \([0, -1, 0, -308, 2112]\) | \(810448/33\) | \(132000000\) | \([2]\) | \(4096\) | \(0.32398\) | \(\Gamma_0(N)\)-optimal |
13200.p2 | 13200a2 | \([0, -1, 0, -808, -5888]\) | \(3650692/1089\) | \(17424000000\) | \([2, 2]\) | \(8192\) | \(0.67056\) | |
13200.p1 | 13200a3 | \([0, -1, 0, -11808, -489888]\) | \(5690357426/891\) | \(28512000000\) | \([2]\) | \(16384\) | \(1.0171\) | |
13200.p4 | 13200a4 | \([0, -1, 0, 2192, -41888]\) | \(36382894/43923\) | \(-1405536000000\) | \([2]\) | \(16384\) | \(1.0171\) |
Rank
sage: E.rank()
The elliptic curves in class 13200a have rank \(1\).
Complex multiplication
The elliptic curves in class 13200a do not have complex multiplication.Modular form 13200.2.a.a
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.