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SageMath
E = EllipticCurve("hk1")
E.isogeny_class()
Elliptic curves in class 129600.hk
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
129600.hk1 | 129600iv3 | \([0, 0, 0, -1723500, -870894000]\) | \(-189613868625/128\) | \(-382205952000000\) | \([]\) | \(1161216\) | \(2.1138\) | |
129600.hk2 | 129600iv4 | \([0, 0, 0, -1363500, -1244862000]\) | \(-1159088625/2097152\) | \(-507227047723008000000\) | \([]\) | \(3483648\) | \(2.6631\) | |
129600.hk3 | 129600iv2 | \([0, 0, 0, -67500, 7074000]\) | \(-140625/8\) | \(-1934917632000000\) | \([]\) | \(497664\) | \(1.6902\) | |
129600.hk4 | 129600iv1 | \([0, 0, 0, 4500, 18000]\) | \(3375/2\) | \(-5971968000000\) | \([]\) | \(165888\) | \(1.1409\) | \(\Gamma_0(N)\)-optimal |
Rank
sage: E.rank()
The elliptic curves in class 129600.hk have rank \(1\).
Complex multiplication
The elliptic curves in class 129600.hk do not have complex multiplication.Modular form 129600.2.a.hk
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 LMFDB numbering.
\(\left(\begin{array}{rrrr} 1 & 3 & 21 & 7 \\ 3 & 1 & 7 & 21 \\ 21 & 7 & 1 & 3 \\ 7 & 21 & 3 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with LMFDB labels.