Show commands:
SageMath
E = EllipticCurve("r1")
E.isogeny_class()
Elliptic curves in class 26928.r
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
26928.r1 | 26928bd2 | \([0, 0, 0, -26211, 1633250]\) | \(666940371553/37026\) | \(110559043584\) | \([2]\) | \(36864\) | \(1.1844\) | |
26928.r2 | 26928bd1 | \([0, 0, 0, -1731, 22466]\) | \(192100033/38148\) | \(113909317632\) | \([2]\) | \(18432\) | \(0.83787\) | \(\Gamma_0(N)\)-optimal |
Rank
sage: E.rank()
The elliptic curves in class 26928.r have rank \(1\).
Complex multiplication
The elliptic curves in class 26928.r do not have complex multiplication.Modular form 26928.2.a.r
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.