Properties

Label 221760.r
Number of curves $4$
Conductor $221760$
CM no
Rank $1$
Graph

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Show commands: SageMath
E = EllipticCurve("r1")
 
E.isogeny_class()
 

Elliptic curves in class 221760.r

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
221760.r1 221760fh4 \([0, 0, 0, -3168588, -2170934512]\) \(73639964854838596/9904125\) \(473176940544000\) \([2]\) \(3932160\) \(2.2292\)  
221760.r2 221760fh3 \([0, 0, 0, -364908, 31009232]\) \(112477694831716/56396484375\) \(2694384000000000000\) \([2]\) \(3932160\) \(2.2292\)  
221760.r3 221760fh2 \([0, 0, 0, -198588, -33722512]\) \(72516235474384/833765625\) \(9958443264000000\) \([2, 2]\) \(1966080\) \(1.8827\)  
221760.r4 221760fh1 \([0, 0, 0, -2568, -1340008]\) \(-2508888064/1037680875\) \(-774624622464000\) \([2]\) \(983040\) \(1.5361\) \(\Gamma_0(N)\)-optimal

Rank

sage: E.rank()
 

The elliptic curves in class 221760.r have rank \(1\).

Complex multiplication

The elliptic curves in class 221760.r do not have complex multiplication.

Modular form 221760.2.a.r

sage: E.q_eigenform(10)
 
\(q - q^{5} - q^{7} - q^{11} - 2 q^{13} + 2 q^{17} - 8 q^{19} + O(q^{20})\) 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.

\(\left(\begin{array}{rrrr} 1 & 4 & 2 & 4 \\ 4 & 1 & 2 & 4 \\ 2 & 2 & 1 & 2 \\ 4 & 4 & 2 & 1 \end{array}\right)\)

Isogeny graph

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

The vertices are labelled with LMFDB labels.