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SageMath
E = EllipticCurve("i1")
E.isogeny_class()
Elliptic curves in class 1785i
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
1785.m4 | 1785i1 | \([1, 0, 1, 41, -1123]\) | \(7892485271/552491415\) | \(-552491415\) | \([2]\) | \(768\) | \(0.35706\) | \(\Gamma_0(N)\)-optimal |
1785.m3 | 1785i2 | \([1, 0, 1, -1404, -19619]\) | \(305759741604409/12646127025\) | \(12646127025\) | \([2, 2]\) | \(1536\) | \(0.70364\) | |
1785.m1 | 1785i3 | \([1, 0, 1, -22229, -1277449]\) | \(1214661886599131209/2213451765\) | \(2213451765\) | \([2]\) | \(3072\) | \(1.0502\) | |
1785.m2 | 1785i4 | \([1, 0, 1, -3699, 60247]\) | \(5595100866606889/1653777286875\) | \(1653777286875\) | \([2]\) | \(3072\) | \(1.0502\) |
Rank
sage: E.rank()
The elliptic curves in class 1785i have rank \(0\).
Complex multiplication
The elliptic curves in class 1785i do not have complex multiplication.Modular form 1785.2.a.i
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.