Properties

Label 31824.i
Number of curves $4$
Conductor $31824$
CM no
Rank $1$
Graph

Related objects

Downloads

Learn more

Show commands: SageMath
E = EllipticCurve("i1")
 
E.isogeny_class()
 

Elliptic curves in class 31824.i

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
31824.i1 31824o4 \([0, 0, 0, -3771, -84294]\) \(7944486372/485537\) \(362451428352\) \([2]\) \(32768\) \(0.97006\)  
31824.i2 31824o2 \([0, 0, 0, -711, 5670]\) \(212992848/48841\) \(9114902784\) \([2, 2]\) \(16384\) \(0.62349\)  
31824.i3 31824o1 \([0, 0, 0, -666, 6615]\) \(2800908288/221\) \(2577744\) \([2]\) \(8192\) \(0.27691\) \(\Gamma_0(N)\)-optimal
31824.i4 31824o3 \([0, 0, 0, 1629, 35154]\) \(640412028/1085773\) \(-810525201408\) \([2]\) \(32768\) \(0.97006\)  

Rank

sage: E.rank()
 

The elliptic curves in class 31824.i have rank \(1\).

Complex multiplication

The elliptic curves in class 31824.i do not have complex multiplication.

Modular form 31824.2.a.i

sage: E.q_eigenform(10)
 
\(q - 2 q^{5} + 4 q^{11} + q^{13} - q^{17} - 4 q^{19} + O(q^{20})\) 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.

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

Isogeny graph

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

The vertices are labelled with LMFDB labels.