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SageMath
E = EllipticCurve("ek1")
E.isogeny_class()
Elliptic curves in class 87360ek
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
87360.g3 | 87360ek1 | \([0, -1, 0, -39436, 3027490]\) | \(105982296177768256/2395575\) | \(153316800\) | \([2]\) | \(147456\) | \(1.0949\) | \(\Gamma_0(N)\)-optimal |
87360.g2 | 87360ek2 | \([0, -1, 0, -39481, 3020281]\) | \(1661648641672384/7872125625\) | \(32244226560000\) | \([2, 2]\) | \(294912\) | \(1.4414\) | |
87360.g4 | 87360ek3 | \([0, -1, 0, -19201, 6098785]\) | \(-23892848985608/475510546875\) | \(-15581529600000000\) | \([2]\) | \(589824\) | \(1.7880\) | |
87360.g1 | 87360ek4 | \([0, -1, 0, -60481, -520319]\) | \(746685723047048/428258628525\) | \(14033178739507200\) | \([2]\) | \(589824\) | \(1.7880\) |
Rank
sage: E.rank()
The elliptic curves in class 87360ek have rank \(1\).
Complex multiplication
The elliptic curves in class 87360ek do not have complex multiplication.Modular form 87360.2.a.ek
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.