Properties

Base field \(\Q(\sqrt{21}) \)
Label 2.2.21.1-1587.1-a
Conductor 1587.1
Rank \( 0 \)

Related objects

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Base field \(\Q(\sqrt{21}) \)

Generator \(a\), with minimal polynomial \( x^{2} - x - 5 \); class number \(1\).

Elliptic curves in class 1587.1-a over \(\Q(\sqrt{21}) \)

Isogeny class 1587.1-a contains 2 curves linked by isogenies of degree 2.

Curve label Weierstrass Coefficients
1587.1-a1 \( \bigl[1\) , \( 0\) , \( 1\) , \( -1\) , \( -1\bigr] \)
1587.1-a2 \( \bigl[1\) , \( 0\) , \( 1\) , \( -16\) , \( -25\bigr] \)

Rank

Rank: \( 0 \)

Isogeny matrix

\(\left(\begin{array}{rr} 1 & 2 \\ 2 & 1 \end{array}\right)\)

Isogeny graph