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SageMath
E = EllipticCurve("bj1")
E.isogeny_class()
Elliptic curves in class 15210bj
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
15210.bi1 | 15210bj1 | \([1, -1, 1, -1279193, 557111481]\) | \(65787589563409/10400000\) | \(36594935114400000\) | \([2]\) | \(322560\) | \(2.1887\) | \(\Gamma_0(N)\)-optimal |
15210.bi2 | 15210bj2 | \([1, -1, 1, -1157513, 667256217]\) | \(-48743122863889/26406250000\) | \(-92916827438906250000\) | \([2]\) | \(645120\) | \(2.5353\) |
Rank
sage: E.rank()
The elliptic curves in class 15210bj have rank \(1\).
Complex multiplication
The elliptic curves in class 15210bj do not have complex multiplication.Modular form 15210.2.a.bj
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.