Properties

Label 47089.c
Number of curves $4$
Conductor $47089$
CM \(\Q(\sqrt{-7}) \)
Rank $1$
Graph

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Show commands: SageMath
E = EllipticCurve("c1")
 
E.isogeny_class()
 

Elliptic curves in class 47089.c

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality CM discriminant
47089.c1 47089a4 \([1, -1, 0, -1751122, -891429351]\) \(16581375\) \(35813974754127367\) \([2]\) \(430080\) \(2.2374\)   \(-28\)
47089.c2 47089a3 \([1, -1, 0, -103007, -15621040]\) \(-3375\) \(-35813974754127367\) \([2]\) \(215040\) \(1.8908\)   \(-7\)
47089.c3 47089a2 \([1, -1, 0, -35737, 2609130]\) \(16581375\) \(304413762583\) \([2]\) \(61440\) \(1.2644\)   \(-28\)
47089.c4 47089a1 \([1, -1, 0, -2102, 46143]\) \(-3375\) \(-304413762583\) \([2]\) \(30720\) \(0.91786\) \(\Gamma_0(N)\)-optimal \(-7\)

Rank

sage: E.rank()
 

The elliptic curves in class 47089.c have rank \(1\).

Complex multiplication

Each elliptic curve in class 47089.c has complex multiplication by an order in the imaginary quadratic field \(\Q(\sqrt{-7}) \).

Modular form 47089.2.a.c

sage: E.q_eigenform(10)
 
\(q + q^{2} - q^{4} - 3 q^{8} - 3 q^{9} - 4 q^{11} - q^{16} - 3 q^{18} + O(q^{20})\) 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.

\(\left(\begin{array}{rrrr} 1 & 2 & 7 & 14 \\ 2 & 1 & 14 & 7 \\ 7 & 14 & 1 & 2 \\ 14 & 7 & 2 & 1 \end{array}\right)\)

Isogeny graph

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

The vertices are labelled with LMFDB labels.