Show commands:
SageMath
E = EllipticCurve("cw1")
E.isogeny_class()
Elliptic curves in class 422370cw
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
422370.cw4 | 422370cw1 | \([1, -1, 0, -937404, 577349968]\) | \(-2656166199049/2658140160\) | \(-91164763777888419840\) | \([2]\) | \(17694720\) | \(2.5256\) | \(\Gamma_0(N)\)-optimal* |
422370.cw3 | 422370cw2 | \([1, -1, 0, -17572284, 28347618640]\) | \(17496824387403529/6580454400\) | \(225686207204049945600\) | \([2, 2]\) | \(35389440\) | \(2.8722\) | \(\Gamma_0(N)\)-optimal* |
422370.cw1 | 422370cw3 | \([1, -1, 0, -281131164, 1814380724848]\) | \(71647584155243142409/10140000\) | \(347765975104860000\) | \([2]\) | \(70778880\) | \(3.2188\) | \(\Gamma_0(N)\)-optimal* |
422370.cw2 | 422370cw4 | \([1, -1, 0, -20171484, 19412088880]\) | \(26465989780414729/10571870144160\) | \(362577586722461465415840\) | \([2]\) | \(70778880\) | \(3.2188\) |
Rank
sage: E.rank()
The elliptic curves in class 422370cw have rank \(1\).
Complex multiplication
The elliptic curves in class 422370cw do not have complex multiplication.Modular form 422370.2.a.cw
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.