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SageMath
E = EllipticCurve("dc1")
E.isogeny_class()
Elliptic curves in class 22080dc
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
22080.ck4 | 22080dc1 | \([0, 1, 0, 29215, -1200225]\) | \(10519294081031/8500170375\) | \(-2228268662784000\) | \([2]\) | \(153600\) | \(1.6328\) | \(\Gamma_0(N)\)-optimal |
22080.ck3 | 22080dc2 | \([0, 1, 0, -140065, -10578337]\) | \(1159246431432649/488076890625\) | \(127946428416000000\) | \([2, 2]\) | \(307200\) | \(1.9794\) | |
22080.ck2 | 22080dc3 | \([0, 1, 0, -1060065, 412437663]\) | \(502552788401502649/10024505152875\) | \(2627863878795264000\) | \([2]\) | \(614400\) | \(2.3260\) | |
22080.ck1 | 22080dc4 | \([0, 1, 0, -1928545, -1031085025]\) | \(3026030815665395929/1364501953125\) | \(357696000000000000\) | \([2]\) | \(614400\) | \(2.3260\) |
Rank
sage: E.rank()
The elliptic curves in class 22080dc have rank \(1\).
Complex multiplication
The elliptic curves in class 22080dc do not have complex multiplication.Modular form 22080.2.a.dc
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.
\(\left(\begin{array}{rrrr} 1 & 2 & 4 & 4 \\ 2 & 1 & 2 & 2 \\ 4 & 2 & 1 & 4 \\ 4 & 2 & 4 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with Cremona labels.