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SageMath
E = EllipticCurve("r1")
E.isogeny_class()
Elliptic curves in class 189630r
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
189630.ey4 | 189630r1 | \([1, -1, 1, -47417, 1189941]\) | \(137467988281/72562500\) | \(6223404155062500\) | \([2]\) | \(1382400\) | \(1.7222\) | \(\Gamma_0(N)\)-optimal |
189630.ey3 | 189630r2 | \([1, -1, 1, -598667, 178251441]\) | \(276670733768281/336980250\) | \(28901488896110250\) | \([2]\) | \(2764800\) | \(2.0687\) | |
189630.ey2 | 189630r3 | \([1, -1, 1, -2197292, -1253080209]\) | \(13679527032530281/381633600\) | \(32731233515265600\) | \([2]\) | \(4147200\) | \(2.2715\) | |
189630.ey1 | 189630r4 | \([1, -1, 1, -2285492, -1146957969]\) | \(15393836938735081/2275690697640\) | \(195177163732366654440\) | \([2]\) | \(8294400\) | \(2.6180\) |
Rank
sage: E.rank()
The elliptic curves in class 189630r have rank \(0\).
Complex multiplication
The elliptic curves in class 189630r do not have complex multiplication.Modular form 189630.2.a.r
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.