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Properties

Base field \(\Q(\sqrt{11}) \)
Label 2.2.44.1-256.1-e
Number of curves 2
Graph
Conductor 256.1
Rank \( 2 \)

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

Copy content comment:Define the base number field
 
Copy content sage:R.<x> = PolynomialRing(QQ); K.<a> = NumberField(R([-11, 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 \(a\), with minimal polynomial \( x^{2} - 11 \); class number \(1\).

Copy content comment:Define the isogeny class
 
Copy content sage:E = EllipticCurve([K([0,0]),K([0,-1]),K([0,0]),K([-527,160]),K([-7414,2235])]) 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 256.1-e have rank \( 2 \).

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 256.1-e over \(\Q(\sqrt{11}) \)

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

Isogeny class 256.1-e contains 2 curves linked by isogenies of degree 11.

Curve label Weierstrass Coefficients
256.1-e1 \( \bigl[0\) , \( -a\) , \( 0\) , \( 160 a - 527\) , \( 2235 a - 7414\bigr] \)
256.1-e2 \( \bigl[0\) , \( a\) , \( 0\) , \( 160 a - 527\) , \( -2235 a + 7414\bigr] \)