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SageMath
E = EllipticCurve("bh1")
E.isogeny_class()
Elliptic curves in class 245490bh
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
245490.bh2 | 245490bh1 | \([1, 1, 1, -72521, -32451721]\) | \(-358531401121921/3652290000000\) | \(-429688266210000000\) | \([]\) | \(3556224\) | \(2.0657\) | \(\Gamma_0(N)\)-optimal |
245490.bh1 | 245490bh2 | \([1, 1, 1, -18645971, 31456409459]\) | \(-6093832136609347161121/108676727597808690\) | \(-12785708325154594569810\) | \([]\) | \(24893568\) | \(3.0386\) |
Rank
sage: E.rank()
The elliptic curves in class 245490bh have rank \(0\).
Complex multiplication
The elliptic curves in class 245490bh do not have complex multiplication.Modular form 245490.2.a.bh
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.
\(\left(\begin{array}{rr} 1 & 7 \\ 7 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with Cremona labels.