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SageMath
E = EllipticCurve("c1")
E.isogeny_class()
Elliptic curves in class 4356c
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality | CM discriminant |
---|---|---|---|---|---|---|---|---|---|
4356.g3 | 4356c1 | \([0, 0, 0, 0, -1331]\) | \(0\) | \(-765314352\) | \([2]\) | \(1440\) | \(0.38353\) | \(\Gamma_0(N)\)-optimal | \(-3\) |
4356.g2 | 4356c2 | \([0, 0, 0, -1815, -29282]\) | \(54000\) | \(12245029632\) | \([2]\) | \(2880\) | \(0.73011\) | \(-12\) | |
4356.g4 | 4356c3 | \([0, 0, 0, 0, 35937]\) | \(0\) | \(-557914162608\) | \([2]\) | \(4320\) | \(0.93284\) | \(-3\) | |
4356.g1 | 4356c4 | \([0, 0, 0, -16335, 790614]\) | \(54000\) | \(8926626601728\) | \([2]\) | \(8640\) | \(1.2794\) | \(-12\) |
Rank
sage: E.rank()
The elliptic curves in class 4356c have rank \(1\).
Complex multiplication
Each elliptic curve in class 4356c has complex multiplication by an order in the imaginary quadratic field \(\Q(\sqrt{-3}) \).Modular form 4356.2.a.c
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.
\(\left(\begin{array}{rrrr} 1 & 2 & 3 & 6 \\ 2 & 1 & 6 & 3 \\ 3 & 6 & 1 & 2 \\ 6 & 3 & 2 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with Cremona labels.