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SageMath
E = EllipticCurve("bm1")
E.isogeny_class()
Elliptic curves in class 272734.bm
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
272734.bm1 | 272734bm2 | \([1, 1, 0, -2804540, 1797762212]\) | \(11704814052625/66001628\) | \(13756216397508784892\) | \([2]\) | \(8847360\) | \(2.5144\) | |
272734.bm2 | 272734bm1 | \([1, 1, 0, -77200, 59355696]\) | \(-244140625/7169008\) | \(-1494181710237081712\) | \([2]\) | \(4423680\) | \(2.1678\) | \(\Gamma_0(N)\)-optimal |
Rank
sage: E.rank()
The elliptic curves in class 272734.bm have rank \(1\).
Complex multiplication
The elliptic curves in class 272734.bm do not have complex multiplication.Modular form 272734.2.a.bm
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.
\(\left(\begin{array}{rr} 1 & 2 \\ 2 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with LMFDB labels.