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SageMath
E = EllipticCurve("bi1")
E.isogeny_class()
Elliptic curves in class 141120bi
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
141120.mn1 | 141120bi1 | \([0, 0, 0, -90552, -7932904]\) | \(2725888/675\) | \(20333569192473600\) | \([2]\) | \(688128\) | \(1.8396\) | \(\Gamma_0(N)\)-optimal |
141120.mn2 | 141120bi2 | \([0, 0, 0, 218148, -50286544]\) | \(2382032/3645\) | \(-1756820378229719040\) | \([2]\) | \(1376256\) | \(2.1862\) |
Rank
sage: E.rank()
The elliptic curves in class 141120bi have rank \(1\).
Complex multiplication
The elliptic curves in class 141120bi do not have complex multiplication.Modular form 141120.2.a.bi
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.