Properties

Label 1890.c
Number of curves $3$
Conductor $1890$
CM no
Rank $1$
Graph

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

Elliptic curves in class 1890.c

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
1890.c1 1890g1 \([1, -1, 0, -219945, 39757665]\) \(-43581616978927713867/6860\) \(-185220\) \([3]\) \(6480\) \(1.3270\) \(\Gamma_0(N)\)-optimal
1890.c2 1890g2 \([1, -1, 0, -219660, 39865616]\) \(-59550644977653843/322828856000\) \(-6354240372648000\) \([3]\) \(19440\) \(1.8763\)  
1890.c3 1890g3 \([1, -1, 0, 567525, 211833125]\) \(114115456478544693/175616000000000\) \(-31109847552000000000\) \([]\) \(58320\) \(2.4256\)  

Rank

sage: E.rank()
 

The elliptic curves in class 1890.c have rank \(1\).

Complex multiplication

The elliptic curves in class 1890.c do not have complex multiplication.

Modular form 1890.2.a.c

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

\(\left(\begin{array}{rrr} 1 & 3 & 9 \\ 3 & 1 & 3 \\ 9 & 3 & 1 \end{array}\right)\)

Isogeny graph

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

The vertices are labelled with LMFDB labels.