Properties

Label 1800k
Number of curves $2$
Conductor $1800$
CM no
Rank $1$
Graph

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Show commands: SageMath
E = EllipticCurve("k1")
 
E.isogeny_class()
 

Elliptic curves in class 1800k

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
1800.j2 1800k1 \([0, 0, 0, -30, 25]\) \(2048\) \(1458000\) \([2]\) \(192\) \(-0.12391\) \(\Gamma_0(N)\)-optimal
1800.j1 1800k2 \([0, 0, 0, -255, -1550]\) \(78608\) \(23328000\) \([2]\) \(384\) \(0.22266\)  

Rank

sage: E.rank()
 

The elliptic curves in class 1800k have rank \(1\).

Complex multiplication

The elliptic curves in class 1800k do not have complex multiplication.

Modular form 1800.2.a.k

sage: E.q_eigenform(10)
 
\(q - 2 q^{7} + 4 q^{11} - 4 q^{13} - 4 q^{19} + O(q^{20})\) 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 Cremona numbering.

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

Isogeny graph

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

The vertices are labelled with Cremona labels.