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SageMath
E = EllipticCurve("cm1")
E.isogeny_class()
Elliptic curves in class 82800cm
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
82800.m4 | 82800cm1 | \([0, 0, 0, -276675, -11090750]\) | \(1355469437763/753664000\) | \(1302331392000000000\) | \([2]\) | \(995328\) | \(2.1663\) | \(\Gamma_0(N)\)-optimal |
82800.m3 | 82800cm2 | \([0, 0, 0, -3348675, -2355026750]\) | \(2403250125069123/4232000000\) | \(7312896000000000000\) | \([2]\) | \(1990656\) | \(2.5128\) | |
82800.m2 | 82800cm3 | \([0, 0, 0, -13716675, 19553069250]\) | \(226568219476347/3893440\) | \(4904613089280000000\) | \([2]\) | \(2985984\) | \(2.7156\) | |
82800.m1 | 82800cm4 | \([0, 0, 0, -14148675, 18255773250]\) | \(248656466619387/29607177800\) | \(37296517160793600000000\) | \([2]\) | \(5971968\) | \(3.0621\) |
Rank
sage: E.rank()
The elliptic curves in class 82800cm have rank \(0\).
Complex multiplication
The elliptic curves in class 82800cm do not have complex multiplication.Modular form 82800.2.a.cm
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.
\(\left(\begin{array}{rrrr} 1 & 2 & 3 & 6 \\ 2 & 1 & 6 & 3 \\ 3 & 6 & 1 & 2 \\ 6 & 3 & 2 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with Cremona labels.