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SageMath
E = EllipticCurve("c1")
E.isogeny_class()
Elliptic curves in class 1310.c
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
1310.c1 | 1310c1 | \([1, 1, 1, -95, 357]\) | \(-94881210481/13100000\) | \(-13100000\) | \([5]\) | \(260\) | \(0.097390\) | \(\Gamma_0(N)\)-optimal |
1310.c2 | 1310c2 | \([1, 1, 1, -45, -29903]\) | \(-10091699281/385794896510\) | \(-385794896510\) | \([]\) | \(1300\) | \(0.90211\) |
Rank
sage: E.rank()
The elliptic curves in class 1310.c have rank \(0\).
Complex multiplication
The elliptic curves in class 1310.c do not have complex multiplication.Modular form 1310.2.a.c
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.
\(\left(\begin{array}{rr} 1 & 5 \\ 5 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with LMFDB labels.