Properties

Label 189630r
Number of curves $4$
Conductor $189630$
CM no
Rank $0$
Graph

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

Elliptic curves in class 189630r

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
189630.ey4 189630r1 \([1, -1, 1, -47417, 1189941]\) \(137467988281/72562500\) \(6223404155062500\) \([2]\) \(1382400\) \(1.7222\) \(\Gamma_0(N)\)-optimal
189630.ey3 189630r2 \([1, -1, 1, -598667, 178251441]\) \(276670733768281/336980250\) \(28901488896110250\) \([2]\) \(2764800\) \(2.0687\)  
189630.ey2 189630r3 \([1, -1, 1, -2197292, -1253080209]\) \(13679527032530281/381633600\) \(32731233515265600\) \([2]\) \(4147200\) \(2.2715\)  
189630.ey1 189630r4 \([1, -1, 1, -2285492, -1146957969]\) \(15393836938735081/2275690697640\) \(195177163732366654440\) \([2]\) \(8294400\) \(2.6180\)  

Rank

sage: E.rank()
 

The elliptic curves in class 189630r have rank \(0\).

Complex multiplication

The elliptic curves in class 189630r do not have complex multiplication.

Modular form 189630.2.a.r

sage: E.q_eigenform(10)
 
\(q + q^{2} + q^{4} + q^{5} + q^{8} + q^{10} + 6 q^{11} - 2 q^{13} + q^{16} - 2 q^{19} + O(q^{20})\) 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 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.