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SageMath
E = EllipticCurve("m1")
E.isogeny_class()
Elliptic curves in class 91200m
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
91200.j4 | 91200m1 | \([0, -1, 0, -3040033, 2133291937]\) | \(-758575480593601/40535043840\) | \(-166031539568640000000\) | \([2]\) | \(4423680\) | \(2.6388\) | \(\Gamma_0(N)\)-optimal |
91200.j3 | 91200m2 | \([0, -1, 0, -49248033, 133040555937]\) | \(3225005357698077121/8526675600\) | \(34925263257600000000\) | \([2, 2]\) | \(8847360\) | \(2.9854\) | |
91200.j2 | 91200m3 | \([0, -1, 0, -49856033, 129587723937]\) | \(3345930611358906241/165622259047500\) | \(678388773058560000000000\) | \([2]\) | \(17694720\) | \(3.3319\) | |
91200.j1 | 91200m4 | \([0, -1, 0, -787968033, 8513818955937]\) | \(13209596798923694545921/92340\) | \(378224640000000\) | \([2]\) | \(17694720\) | \(3.3319\) |
Rank
sage: E.rank()
The elliptic curves in class 91200m have rank \(1\).
Complex multiplication
The elliptic curves in class 91200m do not have complex multiplication.Modular form 91200.2.a.m
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.