Show commands:
SageMath
E = EllipticCurve("bp1")
E.isogeny_class()
Elliptic curves in class 11970bp
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
11970.bg3 | 11970bp1 | \([1, -1, 1, -118598, 15747797]\) | \(253060782505556761/41184460800\) | \(30023471923200\) | \([4]\) | \(49152\) | \(1.5951\) | \(\Gamma_0(N)\)-optimal |
11970.bg2 | 11970bp2 | \([1, -1, 1, -130118, 12512981]\) | \(334199035754662681/101099003040000\) | \(73701173216160000\) | \([2, 2]\) | \(98304\) | \(1.9417\) | |
11970.bg1 | 11970bp3 | \([1, -1, 1, -800438, -265803883]\) | \(77799851782095807001/3092322318750000\) | \(2254302970368750000\) | \([2]\) | \(196608\) | \(2.2882\) | |
11970.bg4 | 11970bp4 | \([1, -1, 1, 355882, 83663381]\) | \(6837784281928633319/8113766016106800\) | \(-5914935425741857200\) | \([2]\) | \(196608\) | \(2.2882\) |
Rank
sage: E.rank()
The elliptic curves in class 11970bp have rank \(1\).
Complex multiplication
The elliptic curves in class 11970bp do not have complex multiplication.Modular form 11970.2.a.bp
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.
\(\left(\begin{array}{rrrr} 1 & 2 & 4 & 4 \\ 2 & 1 & 2 & 2 \\ 4 & 2 & 1 & 4 \\ 4 & 2 & 4 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with Cremona labels.