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SageMath
E = EllipticCurve("a1")
E.isogeny_class()
Elliptic curves in class 268770.a
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
268770.a1 | 268770a2 | \([1, 1, 0, -63131333, 193044033357]\) | \(1152829477932246539641/3188367360\) | \(76959437149347840\) | \([2]\) | \(21565440\) | \(2.8983\) | |
268770.a2 | 268770a1 | \([1, 1, 0, -3944133, 3017609037]\) | \(-281115640967896441/468084326400\) | \(-11298417726298521600\) | \([2]\) | \(10782720\) | \(2.5518\) | \(\Gamma_0(N)\)-optimal |
Rank
sage: E.rank()
The elliptic curves in class 268770.a have rank \(1\).
Complex multiplication
The elliptic curves in class 268770.a do not have complex multiplication.Modular form 268770.2.a.a
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.