Properties

Label 2112.j
Number of curves $4$
Conductor $2112$
CM no
Rank $1$
Graph

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Show commands: SageMath
E = EllipticCurve("j1")
 
E.isogeny_class()
 

Elliptic curves in class 2112.j

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
2112.j1 2112v3 \([0, -1, 0, -9377, -346047]\) \(347873904937/395307\) \(103627358208\) \([2]\) \(3072\) \(1.0271\)  
2112.j2 2112v2 \([0, -1, 0, -737, -2175]\) \(169112377/88209\) \(23123460096\) \([2, 2]\) \(1536\) \(0.68052\)  
2112.j3 2112v1 \([0, -1, 0, -417, 3393]\) \(30664297/297\) \(77856768\) \([2]\) \(768\) \(0.33394\) \(\Gamma_0(N)\)-optimal
2112.j4 2112v4 \([0, -1, 0, 2783, -19775]\) \(9090072503/5845851\) \(-1532454764544\) \([2]\) \(3072\) \(1.0271\)  

Rank

sage: E.rank()
 

The elliptic curves in class 2112.j have rank \(1\).

Complex multiplication

The elliptic curves in class 2112.j do not have complex multiplication.

Modular form 2112.2.a.j

sage: E.q_eigenform(10)
 
\(q - q^{3} + 2 q^{5} - 4 q^{7} + q^{9} + q^{11} + 2 q^{13} - 2 q^{15} - 2 q^{17} + O(q^{20})\) 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.