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SageMath
E = EllipticCurve("y1")
E.isogeny_class()
Elliptic curves in class 155848y
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
155848.w2 | 155848y1 | \([0, -1, 0, -318512, -69082660]\) | \(1969910093092/7889\) | \(14311265002496\) | \([2]\) | \(672000\) | \(1.7357\) | \(\Gamma_0(N)\)-optimal |
155848.w1 | 155848y2 | \([0, -1, 0, -323352, -66869812]\) | \(1030541881826/62236321\) | \(225803139209381888\) | \([2]\) | \(1344000\) | \(2.0823\) |
Rank
sage: E.rank()
The elliptic curves in class 155848y have rank \(1\).
Complex multiplication
The elliptic curves in class 155848y do not have complex multiplication.Modular form 155848.2.a.y
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.