Properties

Label 443982.bl
Number of curves $4$
Conductor $443982$
CM no
Rank $1$
Graph

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Show commands: SageMath
E = EllipticCurve("bl1")
 
E.isogeny_class()
 

Elliptic curves in class 443982.bl

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
443982.bl1 443982bl4 \([1, 1, 1, -13581833, 19258728257]\) \(312196988566716625/25367712678\) \(22513938380275367718\) \([2]\) \(17625600\) \(2.7585\) \(\Gamma_0(N)\)-optimal*
443982.bl2 443982bl3 \([1, 1, 1, -790923, 343530549]\) \(-61653281712625/21875235228\) \(-19414351787590874268\) \([2]\) \(8812800\) \(2.4120\) \(\Gamma_0(N)\)-optimal*
443982.bl3 443982bl2 \([1, 1, 1, -348863, -39923827]\) \(5290763640625/2291573592\) \(2033779998182392152\) \([2]\) \(5875200\) \(2.2092\) \(\Gamma_0(N)\)-optimal*
443982.bl4 443982bl1 \([1, 1, 1, 73977, -4574403]\) \(50447927375/39517632\) \(-35072043864403392\) \([2]\) \(2937600\) \(1.8627\) \(\Gamma_0(N)\)-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 443982.bl1.

Rank

sage: E.rank()
 

The elliptic curves in class 443982.bl have rank \(1\).

Complex multiplication

The elliptic curves in class 443982.bl do not have complex multiplication.

Modular form 443982.2.a.bl

sage: E.q_eigenform(10)
 
\(q + q^{2} - q^{3} + q^{4} - q^{6} + q^{7} + q^{8} + q^{9} + q^{11} - q^{12} - 2 q^{13} + q^{14} + q^{16} + q^{18} + 2 q^{19} + O(q^{20})\) 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 LMFDB 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 LMFDB labels.