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SageMath
E = EllipticCurve("di1")
E.isogeny_class()
Elliptic curves in class 19110di
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
19110.df2 | 19110di1 | \([1, 0, 0, 195, 2925]\) | \(6967871/35100\) | \(-4129479900\) | \([2]\) | \(17280\) | \(0.52734\) | \(\Gamma_0(N)\)-optimal |
19110.df1 | 19110di2 | \([1, 0, 0, -2255, 36735]\) | \(10779215329/1232010\) | \(144944744490\) | \([2]\) | \(34560\) | \(0.87391\) |
Rank
sage: E.rank()
The elliptic curves in class 19110di have rank \(0\).
Complex multiplication
The elliptic curves in class 19110di do not have complex multiplication.Modular form 19110.2.a.di
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.