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SageMath
E = EllipticCurve("fz1")
E.isogeny_class()
Elliptic curves in class 270480fz
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
270480.fz3 | 270480fz1 | \([0, 1, 0, -219536, 39403860]\) | \(2428257525121/8150625\) | \(3927707159040000\) | \([2]\) | \(1572864\) | \(1.8565\) | \(\Gamma_0(N)\)-optimal |
270480.fz2 | 270480fz2 | \([0, 1, 0, -317536, 635060]\) | \(7347774183121/4251692025\) | \(2048849162441625600\) | \([2, 2]\) | \(3145728\) | \(2.2031\) | |
270480.fz4 | 270480fz3 | \([0, 1, 0, 1270064, 6350420]\) | \(470166844956479/272118787605\) | \(-131131405283084881920\) | \([2]\) | \(6291456\) | \(2.5497\) | |
270480.fz1 | 270480fz4 | \([0, 1, 0, -3473136, -2484715500]\) | \(9614816895690721/34652610405\) | \(16698756962459013120\) | \([2]\) | \(6291456\) | \(2.5497\) |
Rank
sage: E.rank()
The elliptic curves in class 270480fz have rank \(1\).
Complex multiplication
The elliptic curves in class 270480fz do not have complex multiplication.Modular form 270480.2.a.fz
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.