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SageMath
E = EllipticCurve("b1")
E.isogeny_class()
Elliptic curves in class 340605.b
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
340605.b1 | 340605b2 | \([1, -1, 1, -189383, -31811548]\) | \(-15590912409/78125\) | \(-3764116328203125\) | \([]\) | \(2114448\) | \(1.8360\) | |
340605.b2 | 340605b1 | \([1, -1, 1, -158, 23666]\) | \(-9/5\) | \(-240903445005\) | \([]\) | \(302064\) | \(0.86306\) | \(\Gamma_0(N)\)-optimal |
Rank
sage: E.rank()
The elliptic curves in class 340605.b have rank \(1\).
Complex multiplication
The elliptic curves in class 340605.b do not have complex multiplication.Modular form 340605.2.a.b
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.
\(\left(\begin{array}{rr} 1 & 7 \\ 7 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with LMFDB labels.