Show commands:
SageMath
E = EllipticCurve("cp1")
E.isogeny_class()
Elliptic curves in class 23232cp
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
23232.o2 | 23232cp1 | \([0, -1, 0, -3549, -237411]\) | \(-2048/9\) | \(-21730845920256\) | \([2]\) | \(50688\) | \(1.2441\) | \(\Gamma_0(N)\)-optimal |
23232.o1 | 23232cp2 | \([0, -1, 0, -83409, -9229647]\) | \(1661168/3\) | \(115897844908032\) | \([2]\) | \(101376\) | \(1.5907\) |
Rank
sage: E.rank()
The elliptic curves in class 23232cp have rank \(0\).
Complex multiplication
The elliptic curves in class 23232cp do not have complex multiplication.Modular form 23232.2.a.cp
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.
\(\left(\begin{array}{rr} 1 & 2 \\ 2 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with Cremona labels.