Show commands: SageMath

Base field \(\Q(\sqrt{-11}) \)

Copy content comment:Define the base number field
 
Copy content sage:R.<x> = PolynomialRing(QQ); K.<a> = NumberField(R([3, -1, 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 \(a\), with minimal polynomial \( x^{2} - x + 3 \); 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([-992,328]),K([-10528,5020])]) 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 1089.1-a have rank \( 1 \).

Isogeny matrix

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

\(\left(\begin{array}{rr} 1 & 11 \\ 11 & 1 \end{array}\right)\)

Isogeny graph

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

Elliptic curves in class 1089.1-a over \(\Q(\sqrt{-11}) \)

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

Isogeny class 1089.1-a contains 2 curves linked by isogenies of degree 11.

Curve label Weierstrass Coefficients
1089.1-a1 \( \bigl[a + 1\) , \( a - 1\) , \( a + 1\) , \( 328 a - 992\) , \( 5020 a - 10528\bigr] \)
1089.1-a2 \( \bigl[a + 1\) , \( a - 1\) , \( a + 1\) , \( -2 a - 2\) , \( -2 a + 2\bigr] \)