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SageMath
E = EllipticCurve("bp1")
E.isogeny_class()
Elliptic curves in class 140790bp
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
140790.w4 | 140790bp1 | \([1, 0, 1, -16136708, 51528743426]\) | \(-9877496597620516801/18666674973573120\) | \(-878190169472399148318720\) | \([2]\) | \(29491200\) | \(3.2842\) | \(\Gamma_0(N)\)-optimal |
140790.w3 | 140790bp2 | \([1, 0, 1, -328502788, 2290069019138]\) | \(83333435002229316265921/67231677478118400\) | \(3162973498065938350310400\) | \([2, 2]\) | \(58982400\) | \(3.6307\) | |
140790.w1 | 140790bp3 | \([1, 0, 1, -5255026468, 146625389186306]\) | \(341135431944367622806895041/222309381060000\) | \(10458740686532413860000\) | \([2]\) | \(117964800\) | \(3.9773\) | |
140790.w2 | 140790bp4 | \([1, 0, 1, -399836388, 1222575961858]\) | \(150261960680978721232321/73231357863424756320\) | \(3445233747511095338284717920\) | \([2]\) | \(117964800\) | \(3.9773\) |
Rank
sage: E.rank()
The elliptic curves in class 140790bp have rank \(2\).
Complex multiplication
The elliptic curves in class 140790bp do not have complex multiplication.Modular form 140790.2.a.bp
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.