Properties

Label 25857.e
Number of curves $4$
Conductor $25857$
CM no
Rank $2$
Graph

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Show commands: SageMath
E = EllipticCurve("e1")
 
E.isogeny_class()
 

Elliptic curves in class 25857.e

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
25857.e1 25857i4 \([1, -1, 1, -137936, 19752490]\) \(82483294977/17\) \(59818643937\) \([2]\) \(73728\) \(1.4551\)  
25857.e2 25857i2 \([1, -1, 1, -8651, 308026]\) \(20346417/289\) \(1016916946929\) \([2, 2]\) \(36864\) \(1.1086\)  
25857.e3 25857i1 \([1, -1, 1, -1046, -5300]\) \(35937/17\) \(59818643937\) \([2]\) \(18432\) \(0.76200\) \(\Gamma_0(N)\)-optimal
25857.e4 25857i3 \([1, -1, 1, -1046, 825166]\) \(-35937/83521\) \(-293888997662481\) \([2]\) \(73728\) \(1.4551\)  

Rank

sage: E.rank()
 

The elliptic curves in class 25857.e have rank \(2\).

Complex multiplication

The elliptic curves in class 25857.e do not have complex multiplication.

Modular form 25857.2.a.e

sage: E.q_eigenform(10)
 
\(q - q^{2} - q^{4} - 2 q^{5} - 4 q^{7} + 3 q^{8} + 2 q^{10} + 4 q^{14} - q^{16} - q^{17} + 4 q^{19} + O(q^{20})\) 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.