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Properties

Base field \(\Q(\sqrt{-7}) \)
Label 2.0.7.1-36992.2-d
Number of curves 4
Graph
Conductor 36992.2
Rank \( 0 \)

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Base field \(\Q(\sqrt{-7}) \)

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

Copy content comment:Define the isogeny class
 
Copy content sage:E = EllipticCurve([K([0,1]),K([1,0]),K([0,0]),K([-6,-15]),K([-6,17])]) 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 36992.2-d have rank \( 0 \).

Isogeny matrix

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

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

Isogeny graph

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

Elliptic curves in class 36992.2-d over \(\Q(\sqrt{-7}) \)

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

Isogeny class 36992.2-d contains 4 curves linked by isogenies of degrees dividing 6.

Curve label Weierstrass Coefficients
36992.2-d1 \( \bigl[a\) , \( 1\) , \( 0\) , \( -15 a - 6\) , \( 17 a - 6\bigr] \)
36992.2-d2 \( \bigl[a\) , \( 1\) , \( 0\) , \( -565 a - 226\) , \( -5593 a + 1974\bigr] \)
36992.2-d3 \( \bigl[a\) , \( 1\) , \( 0\) , \( -215 a - 86\) , \( 1785 a - 630\bigr] \)
36992.2-d4 \( \bigl[a\) , \( 1\) , \( 0\) , \( -515 a - 206\) , \( -6987 a + 2466\bigr] \)