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SageMath
E = EllipticCurve("bv1")
E.isogeny_class()
Elliptic curves in class 428736.bv
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
428736.bv1 | 428736bv3 | \([0, -1, 0, -79969, 8725249]\) | \(215751695207833/163381911\) | \(42829587677184\) | \([2]\) | \(1703936\) | \(1.5483\) | \(\Gamma_0(N)\)-optimal* |
428736.bv2 | 428736bv2 | \([0, -1, 0, -6049, 76609]\) | \(93391282153/44876601\) | \(11764131692544\) | \([2, 2]\) | \(851968\) | \(1.2018\) | \(\Gamma_0(N)\)-optimal* |
428736.bv3 | 428736bv1 | \([0, -1, 0, -3169, -66815]\) | \(13430356633/180873\) | \(47414771712\) | \([2]\) | \(425984\) | \(0.85518\) | \(\Gamma_0(N)\)-optimal* |
428736.bv4 | 428736bv4 | \([0, -1, 0, 21791, 561025]\) | \(4365111505607/3058314567\) | \(-801718813851648\) | \([2]\) | \(1703936\) | \(1.5483\) |
Rank
sage: E.rank()
The elliptic curves in class 428736.bv have rank \(1\).
Complex multiplication
The elliptic curves in class 428736.bv do not have complex multiplication.Modular form 428736.2.a.bv
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.
\(\left(\begin{array}{rrrr} 1 & 2 & 4 & 4 \\ 2 & 1 & 2 & 2 \\ 4 & 2 & 1 & 4 \\ 4 & 2 & 4 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with LMFDB labels.