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SageMath
E = EllipticCurve("cw1")
E.isogeny_class()
Elliptic curves in class 25920cw
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
25920.cy2 | 25920cw1 | \([0, 0, 0, -12, -496]\) | \(-9/5\) | \(-106168320\) | \([]\) | \(6144\) | \(0.21913\) | \(\Gamma_0(N)\)-optimal |
25920.cy1 | 25920cw2 | \([0, 0, 0, -14412, 668816]\) | \(-15590912409/78125\) | \(-1658880000000\) | \([]\) | \(43008\) | \(1.1921\) |
Rank
sage: E.rank()
The elliptic curves in class 25920cw have rank \(1\).
Complex multiplication
The elliptic curves in class 25920cw do not have complex multiplication.Modular form 25920.2.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.
\(\left(\begin{array}{rr} 1 & 7 \\ 7 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with Cremona labels.