Properties

Label 236691.r
Number of curves $6$
Conductor $236691$
CM no
Rank $0$
Graph

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

Elliptic curves in class 236691.r

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
236691.r1 236691r5 \([1, -1, 0, -105546033, 417088014696]\) \(7389727131216686257/6115533215337\) \(107610682513644759203937\) \([2]\) \(28311552\) \(3.3478\)  
236691.r2 236691r3 \([1, -1, 0, -8047548, 3440942235]\) \(3275619238041697/1605271262049\) \(28246815125688692964249\) \([2, 2]\) \(14155776\) \(3.0012\)  
236691.r3 236691r2 \([1, -1, 0, -4289103, -3380635440]\) \(495909170514577/6224736609\) \(109532256857384806809\) \([2, 2]\) \(7077888\) \(2.6547\)  
236691.r4 236691r1 \([1, -1, 0, -4276098, -3402382401]\) \(491411892194497/78897\) \(1388294318635497\) \([2]\) \(3538944\) \(2.3081\) \(\Gamma_0(N)\)-optimal
236691.r5 236691r4 \([1, -1, 0, -738738, -8810563671]\) \(-2533811507137/1904381781393\) \(-33510049908372294686793\) \([2]\) \(14155776\) \(3.0012\)  
236691.r6 236691r6 \([1, -1, 0, 29315817, 26329739634]\) \(158346567380527343/108665074944153\) \(-1912101932634550190177553\) \([2]\) \(28311552\) \(3.3478\)  

Rank

sage: E.rank()
 

The elliptic curves in class 236691.r have rank \(0\).

Complex multiplication

The elliptic curves in class 236691.r do not have complex multiplication.

Modular form 236691.2.a.r

sage: E.q_eigenform(10)
 
\(q + q^{2} - q^{4} - 2 q^{5} + q^{7} - 3 q^{8} - 2 q^{10} - 4 q^{11} + q^{13} + q^{14} - q^{16} - 4 q^{19} + O(q^{20})\) 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.

\(\left(\begin{array}{rrrrrr} 1 & 2 & 4 & 8 & 8 & 4 \\ 2 & 1 & 2 & 4 & 4 & 2 \\ 4 & 2 & 1 & 2 & 2 & 4 \\ 8 & 4 & 2 & 1 & 4 & 8 \\ 8 & 4 & 2 & 4 & 1 & 8 \\ 4 & 2 & 4 & 8 & 8 & 1 \end{array}\right)\)

Isogeny graph

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

The vertices are labelled with LMFDB labels.