Properties

Label 81600.fh
Number of curves $2$
Conductor $81600$
CM no
Rank $2$
Graph

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Show commands: SageMath
E = EllipticCurve("fh1")
 
E.isogeny_class()
 

Elliptic curves in class 81600.fh

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
81600.fh1 81600fb1 \([0, 1, 0, -32573, 2251683]\) \(29860725364736/3581577\) \(458441856000\) \([2]\) \(239616\) \(1.2624\) \(\Gamma_0(N)\)-optimal
81600.fh2 81600fb2 \([0, 1, 0, -29873, 2643183]\) \(-1439609866256/651714363\) \(-1334711015424000\) \([2]\) \(479232\) \(1.6089\)  

Rank

sage: E.rank()
 

The elliptic curves in class 81600.fh have rank \(2\).

Complex multiplication

The elliptic curves in class 81600.fh do not have complex multiplication.

Modular form 81600.2.a.fh

sage: E.q_eigenform(10)
 
\(q + q^{3} - 4 q^{7} + q^{9} - 2 q^{11} - 4 q^{13} + q^{17} + 4 q^{19} + O(q^{20})\) 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.

\(\left(\begin{array}{rr} 1 & 2 \\ 2 & 1 \end{array}\right)\)

Isogeny graph

sage: E.isogeny_graph().plot(edge_labels=True)
 

The vertices are labelled with LMFDB labels.