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SageMath
E = EllipticCurve("df1")
E.isogeny_class()
Elliptic curves in class 23850.df
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
23850.df1 | 23850ck2 | \([1, -1, 1, -5535680, 5014462947]\) | \(-1646982616152408625/38112512\) | \(-434125332000000\) | \([]\) | \(622080\) | \(2.3314\) | |
23850.df2 | 23850ck1 | \([1, -1, 1, -63680, 7870947]\) | \(-2507141976625/889192448\) | \(-10128457728000000\) | \([]\) | \(207360\) | \(1.7821\) | \(\Gamma_0(N)\)-optimal |
Rank
sage: E.rank()
The elliptic curves in class 23850.df have rank \(1\).
Complex multiplication
The elliptic curves in class 23850.df do not have complex multiplication.Modular form 23850.2.a.df
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 LMFDB 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 LMFDB labels.