Properties

Label 28900.b
Number of curves $4$
Conductor $28900$
CM no
Rank $0$
Graph

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Show commands: SageMath
E = EllipticCurve("b1")
 
E.isogeny_class()
 

Elliptic curves in class 28900.b

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
28900.b1 28900d3 \([0, 1, 0, -298633, -62899512]\) \(488095744/125\) \(754299031250000\) \([2]\) \(165888\) \(1.8407\)  
28900.b2 28900d4 \([0, 1, 0, -262508, -78650012]\) \(-20720464/15625\) \(-1508598062500000000\) \([2]\) \(331776\) \(2.1873\)  
28900.b3 28900d1 \([0, 1, 0, -9633, 246988]\) \(16384/5\) \(30171961250000\) \([2]\) \(55296\) \(1.2914\) \(\Gamma_0(N)\)-optimal
28900.b4 28900d2 \([0, 1, 0, 26492, 1691988]\) \(21296/25\) \(-2413756900000000\) \([2]\) \(110592\) \(1.6379\)  

Rank

sage: E.rank()
 

The elliptic curves in class 28900.b have rank \(0\).

Complex multiplication

The elliptic curves in class 28900.b do not have complex multiplication.

Modular form 28900.2.a.b

sage: E.q_eigenform(10)
 
\(q - 2 q^{3} + 2 q^{7} + q^{9} - 2 q^{13} - 4 q^{19} + O(q^{20})\) 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 LMFDB numbering.

\(\left(\begin{array}{rrrr} 1 & 2 & 3 & 6 \\ 2 & 1 & 6 & 3 \\ 3 & 6 & 1 & 2 \\ 6 & 3 & 2 & 1 \end{array}\right)\)

Isogeny graph

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

The vertices are labelled with LMFDB labels.