Properties

Base field \(\Q(\sqrt{57}) \)
Label 2.2.57.1-36.1-b
Number of curves 4
Graph
Conductor 36.1
Rank \( 0 \)

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Base field \(\Q(\sqrt{57}) \)

Copy content comment:Define the base number field
 
Copy content sage:R.<x> = PolynomialRing(QQ); K.<a> = NumberField(R([-14, -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 \( x^{2} - x - 14 \); class number \(1\).

Copy content comment:Define the isogeny class
 
Copy content sage:E = EllipticCurve([K([1,0]),K([-1,0]),K([0,1]),K([-276546321,64690450]),K([2352465823751,-550295059294])]) 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 36.1-b have rank \( 0 \).

Isogeny matrix

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

\(\left(\begin{array}{rrrr} 1 & 3 & 7 & 21 \\ 3 & 1 & 21 & 7 \\ 7 & 21 & 1 & 3 \\ 21 & 7 & 3 & 1 \end{array}\right)\)

Isogeny graph

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

Elliptic curves in class 36.1-b over \(\Q(\sqrt{57}) \)

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

Isogeny class 36.1-b contains 4 curves linked by isogenies of degrees dividing 21.

Curve label Weierstrass Coefficients
36.1-b1 \( \bigl[1\) , \( -1\) , \( a\) , \( 64690450 a - 276546321\) , \( -550295059294 a + 2352465823751\bigr] \)
36.1-b2 \( \bigl[1\) , \( -1\) , \( a\) , \( 5674 a - 29613\) , \( -560830 a + 2247997\bigr] \)
36.1-b3 \( \bigl[1\) , \( -1\) , \( a\) , \( -193880 a + 828819\) , \( 82120562 a - 351058609\bigr] \)
36.1-b4 \( \bigl[1\) , \( -1\) , \( a\) , \( 4 a - 3\) , \( -4 a + 31\bigr] \)