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SageMath
E = EllipticCurve("p1")
E.isogeny_class()
Elliptic curves in class 73984p
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality | CM discriminant |
---|---|---|---|---|---|---|---|---|---|
73984.a2 | 73984p1 | \([0, 1, 0, -963, -10511]\) | \(8000\) | \(12358435328\) | \([2]\) | \(36864\) | \(0.66606\) | \(\Gamma_0(N)\)-optimal | \(-8\) |
73984.a1 | 73984p2 | \([0, 1, 0, -3853, 80235]\) | \(8000\) | \(790939860992\) | \([2]\) | \(73728\) | \(1.0126\) | \(-8\) |
Rank
sage: E.rank()
The elliptic curves in class 73984p have rank \(2\).
Complex multiplication
Each elliptic curve in class 73984p has complex multiplication by an order in the imaginary quadratic field \(\Q(\sqrt{-2}) \).Modular form 73984.2.a.p
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.