Properties

Base field \(\Q(\sqrt{13}) \)
Label 2.2.13.1-81.5-c
Conductor 81.5
Rank \( 1 \)

Related objects

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Base field \(\Q(\sqrt{13}) \)

Generator \(a\), with minimal polynomial \( x^{2} - x - 3 \); class number \(1\).

Elliptic curves in class 81.5-c over \(\Q(\sqrt{13}) \)

Isogeny class 81.5-c contains 2 curves linked by isogenies of degree 3.

Curve label Weierstrass Coefficients
81.5-c1 \( \bigl[0\) , \( -a\) , \( a + 1\) , \( -2 a - 3\) , \( 0\bigr] \)
81.5-c2 \( \bigl[0\) , \( -a\) , \( a + 1\) , \( -3 a - 6\) , \( 9 a + 9\bigr] \)

Rank

Rank: \( 1 \)

Isogeny matrix

\(\left(\begin{array}{rr} 1 & 3 \\ 3 & 1 \end{array}\right)\)

Isogeny graph