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SageMath
E = EllipticCurve("f1")
E.isogeny_class()
Elliptic curves in class 11271f
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
11271.g4 | 11271f1 | \([1, 0, 1, 138, -1325]\) | \(12167/39\) | \(-941365191\) | \([2]\) | \(5120\) | \(0.40509\) | \(\Gamma_0(N)\)-optimal |
11271.g3 | 11271f2 | \([1, 0, 1, -1307, -15775]\) | \(10218313/1521\) | \(36713242449\) | \([2, 2]\) | \(10240\) | \(0.75167\) | |
11271.g1 | 11271f3 | \([1, 0, 1, -20092, -1097791]\) | \(37159393753/1053\) | \(25416860157\) | \([2]\) | \(20480\) | \(1.0982\) | |
11271.g2 | 11271f4 | \([1, 0, 1, -5642, 147221]\) | \(822656953/85683\) | \(2068179324627\) | \([2]\) | \(20480\) | \(1.0982\) |
Rank
sage: E.rank()
The elliptic curves in class 11271f have rank \(1\).
Complex multiplication
The elliptic curves in class 11271f do not have complex multiplication.Modular form 11271.2.a.f
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.