Properties

Label 400710b
Number of curves $4$
Conductor $400710$
CM no
Rank $0$
Graph

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Show commands: SageMath
E = EllipticCurve("b1")
 
E.isogeny_class()
 

Elliptic curves in class 400710b

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
400710.b3 400710b1 \([1, 1, 0, -19517833, -73826099963]\) \(-17478209248027211809/39921724625688000\) \(-1878152706054887191128000\) \([2]\) \(74649600\) \(3.3462\) \(\Gamma_0(N)\)-optimal*
400710.b2 400710b2 \([1, 1, 0, -409007953, -3181256175347]\) \(160841222880596489520289/158621068526625000\) \(7462467913996445081625000\) \([2]\) \(149299200\) \(3.6927\) \(\Gamma_0(N)\)-optimal*
400710.b4 400710b3 \([1, 1, 0, 169379027, 1624758910633]\) \(11423021746642244003231/30848851120710937500\) \(-1451311378811683401023437500\) \([2]\) \(223948800\) \(3.8955\) \(\Gamma_0(N)\)-optimal*
400710.b1 400710b4 \([1, 1, 0, -1476336943, 18437722403347]\) \(7564122771096983025656449/1255581642150878906250\) \(59069944522414833068847656250\) \([2]\) \(447897600\) \(4.2421\) \(\Gamma_0(N)\)-optimal*
*optimality has not been determined rigorously for conductors over 400000. In this case the optimal curve is certainly one of the 4 curves highlighted, and conditionally curve 400710b1.

Rank

sage: E.rank()
 

The elliptic curves in class 400710b have rank \(0\).

Complex multiplication

The elliptic curves in class 400710b do not have complex multiplication.

Modular form 400710.2.a.b

sage: E.q_eigenform(10)
 
\(q - q^{2} - q^{3} + q^{4} - q^{5} + q^{6} - 4 q^{7} - q^{8} + q^{9} + q^{10} - q^{12} - 2 q^{13} + 4 q^{14} + q^{15} + q^{16} - q^{18} + O(q^{20})\) Copy content Toggle raw display

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.