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SageMath
E = EllipticCurve("ec1")
E.isogeny_class()
Elliptic curves in class 182070ec
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
182070.b2 | 182070ec1 | \([1, -1, 0, 21315, 865925]\) | \(11074654989/9800000\) | \(-947685274200000\) | \([2]\) | \(1013760\) | \(1.5612\) | \(\Gamma_0(N)\)-optimal |
182070.b1 | 182070ec2 | \([1, -1, 0, -107205, 7780301]\) | \(1409071586931/546875000\) | \(52884222890625000\) | \([2]\) | \(2027520\) | \(1.9078\) |
Rank
sage: E.rank()
The elliptic curves in class 182070ec have rank \(1\).
Complex multiplication
The elliptic curves in class 182070ec do not have complex multiplication.Modular form 182070.2.a.ec
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.
\(\left(\begin{array}{rr} 1 & 2 \\ 2 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with Cremona labels.