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SageMath
E = EllipticCurve("cg1")
E.isogeny_class()
Elliptic curves in class 16830cg
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
16830.bo1 | 16830cg1 | \([1, -1, 1, -923, -10753]\) | \(-119168121961/2524500\) | \(-1840360500\) | \([]\) | \(11520\) | \(0.56819\) | \(\Gamma_0(N)\)-optimal |
16830.bo2 | 16830cg2 | \([1, -1, 1, 3802, -50443]\) | \(8339492177639/6277634880\) | \(-4576395827520\) | \([3]\) | \(34560\) | \(1.1175\) |
Rank
sage: E.rank()
The elliptic curves in class 16830cg have rank \(1\).
Complex multiplication
The elliptic curves in class 16830cg do not have complex multiplication.Modular form 16830.2.a.cg
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.
\(\left(\begin{array}{rr} 1 & 3 \\ 3 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with Cremona labels.