Properties

Label 187200.bk
Number of curves $2$
Conductor $187200$
CM no
Rank $2$
Graph

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Show commands: SageMath
E = EllipticCurve("bk1")
 
E.isogeny_class()
 

Elliptic curves in class 187200.bk

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
187200.bk1 187200i2 \([0, 0, 0, -8460, 291600]\) \(5606442/169\) \(2018525184000\) \([2]\) \(327680\) \(1.1375\)  
187200.bk2 187200i1 \([0, 0, 0, -1260, -10800]\) \(37044/13\) \(77635584000\) \([2]\) \(163840\) \(0.79096\) \(\Gamma_0(N)\)-optimal

Rank

sage: E.rank()
 

The elliptic curves in class 187200.bk have rank \(2\).

Complex multiplication

The elliptic curves in class 187200.bk do not have complex multiplication.

Modular form 187200.2.a.bk

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

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

Isogeny graph

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

The vertices are labelled with LMFDB labels.