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SageMath
E = EllipticCurve("k1")
E.isogeny_class()
Elliptic curves in class 7803.k
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality | CM discriminant |
---|---|---|---|---|---|---|---|---|---|
7803.k1 | 7803a4 | \([0, 0, 1, -78030, -8390176]\) | \(-12288000\) | \(-4275897935643\) | \([]\) | \(15552\) | \(1.4688\) | \(-27\) | |
7803.k2 | 7803a3 | \([0, 0, 1, -8670, 310747]\) | \(-12288000\) | \(-5865429267\) | \([]\) | \(5184\) | \(0.91945\) | \(-27\) | |
7803.k3 | 7803a2 | \([0, 0, 1, 0, -33163]\) | \(0\) | \(-475099770627\) | \([]\) | \(5184\) | \(0.91945\) | \(-3\) | |
7803.k4 | 7803a1 | \([0, 0, 1, 0, 1228]\) | \(0\) | \(-651714363\) | \([]\) | \(1728\) | \(0.37014\) | \(\Gamma_0(N)\)-optimal | \(-3\) |
Rank
sage: E.rank()
The elliptic curves in class 7803.k have rank \(1\).
Complex multiplication
Each elliptic curve in class 7803.k has complex multiplication by an order in the imaginary quadratic field \(\Q(\sqrt{-3}) \).Modular form 7803.2.a.k
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.
\(\left(\begin{array}{rrrr} 1 & 27 & 3 & 9 \\ 27 & 1 & 9 & 3 \\ 3 & 9 & 1 & 3 \\ 9 & 3 & 3 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with LMFDB labels.