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SageMath
E = EllipticCurve("ep1")
E.isogeny_class()
Elliptic curves in class 139230ep
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
139230.c2 | 139230ep1 | \([1, -1, 0, -960, -10900]\) | \(4973940243/154700\) | \(3044960100\) | \([2]\) | \(116736\) | \(0.59502\) | \(\Gamma_0(N)\)-optimal |
139230.c1 | 139230ep2 | \([1, -1, 0, -2310, 27710]\) | \(69274613043/23932090\) | \(471055327470\) | \([2]\) | \(233472\) | \(0.94160\) |
Rank
sage: E.rank()
The elliptic curves in class 139230ep have rank \(1\).
Complex multiplication
The elliptic curves in class 139230ep do not have complex multiplication.Modular form 139230.2.a.ep
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.