Properties

Base field \(\Q(\sqrt{-1}) \)
Label 2.0.4.1-5200.6-b
Number of curves 6
Graph
Conductor 5200.6
Rank \( 1 \)

Related objects

Downloads

Learn more

Show commands: SageMath

Base field \(\Q(\sqrt{-1}) \)

Copy content comment:Define the base number field
 
Copy content sage:R.<x> = PolynomialRing(QQ); K.<a> = NumberField(R([1, 0, 1]))
 
Copy content pari:K = nfinit(Polrev(%s));
 
Copy content magma:R<x> := PolynomialRing(Rationals()); K<a> := NumberField(R!%s);
 
Copy content oscar:Qx, x = polynomial_ring(QQ); K, a = number_field(Qx(%s))
 

Generator \(i\), with minimal polynomial \( x^{2} + 1 \); class number \(1\).

Copy content comment:Define the isogeny class
 
Copy content sage:E = EllipticCurve([K([1,1]),K([-1,-1]),K([1,1]),K([-2036,-269]),K([36407,7244])]) E.isogeny_class()
 

Rank

Copy content comment:Compute the Mordell-Weil rank
 
Copy content sage:E.rank()
 
Copy content magma:Rank(E);
 

The elliptic curves in class 5200.6-b have rank \( 1 \).

Isogeny matrix

Copy content comment:Isogeny matrix
 
Copy content sage:E.isogeny_class().matrix()
 

\(\left(\begin{array}{rrrrrr} 1 & 3 & 6 & 2 & 9 & 18 \\ 3 & 1 & 2 & 6 & 3 & 6 \\ 6 & 2 & 1 & 3 & 6 & 3 \\ 2 & 6 & 3 & 1 & 18 & 9 \\ 9 & 3 & 6 & 18 & 1 & 2 \\ 18 & 6 & 3 & 9 & 2 & 1 \end{array}\right)\)

Isogeny graph

Copy content comment:Isogeny graph
 
Copy content sage:E.isogeny_class().graph().plot(edge_labels=True)
 

Elliptic curves in class 5200.6-b over \(\Q(\sqrt{-1}) \)

Copy content comment:List of curves in the isogeny class
 
Copy content sage:E.isogeny_class().curves
 

Isogeny class 5200.6-b contains 6 curves linked by isogenies of degrees dividing 18.

Curve label Weierstrass Coefficients
5200.6-b1 \( \bigl[i + 1\) , \( -i - 1\) , \( i + 1\) , \( -269 i - 2036\) , \( 7244 i + 36407\bigr] \)
5200.6-b2 \( \bigl[i + 1\) , \( -i - 1\) , \( i + 1\) , \( -189 i - 96\) , \( -1128 i + 111\bigr] \)
5200.6-b3 \( \bigl[i + 1\) , \( -i - 1\) , \( i + 1\) , \( -229 i + 184\) , \( -2832 i - 2761\bigr] \)
5200.6-b4 \( \bigl[i + 1\) , \( -i - 1\) , \( i + 1\) , \( 1971 i - 1716\) , \( 86412 i + 51831\bigr] \)
5200.6-b5 \( \bigl[i + 1\) , \( -i - 1\) , \( i + 1\) , \( 11 i + 4\) , \( -12 i - 1\bigr] \)
5200.6-b6 \( \bigl[i + 1\) , \( -i - 1\) , \( i + 1\) , \( 151 i + 24\) , \( -440 i - 605\bigr] \)