Properties

Base field \(\Q(\sqrt{85}) \)
Label 2.2.85.1-180.1-r
Conductor 180.1
Rank \( 0 \)

Related objects

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Base field \(\Q(\sqrt{85}) \)

Generator \(a\), with minimal polynomial \( x^{2} - x - 21 \); class number \(2\).

Elliptic curves in class 180.1-r over \(\Q(\sqrt{85}) \)

Isogeny class 180.1-r contains 8 curves linked by isogenies of degrees dividing 12.

Curve label Weierstrass Coefficients
180.1-r1 \( \bigl[a + 1\) , \( -a - 1\) , \( a\) , \( 147 a - 774\) , \( 7288 a - 37301\bigr] \)
180.1-r2 \( \bigl[a + 1\) , \( -a - 1\) , \( a\) , \( -18 a + 81\) , \( -269 a + 1372\bigr] \)
180.1-r3 \( \bigl[a + 1\) , \( -a - 1\) , \( a\) , \( 4987 a - 25854\) , \( 65888 a - 337421\bigr] \)
180.1-r4 \( \bigl[a + 1\) , \( -a - 1\) , \( a\) , \( 752 a - 3909\) , \( 22453 a - 114926\bigr] \)
180.1-r5 \( \bigl[a + 1\) , \( -a - 1\) , \( a\) , \( 202 a - 1059\) , \( -2737 a + 13984\bigr] \)
180.1-r6 \( \bigl[a + 1\) , \( -a - 1\) , \( a\) , \( 3667 a - 19014\) , \( 268856 a - 1375733\bigr] \)
180.1-r7 \( \bigl[a + 1\) , \( -a - 1\) , \( a\) , \( 3172 a - 16449\) , \( -205399 a + 1050622\bigr] \)
180.1-r8 \( \bigl[a + 1\) , \( -a - 1\) , \( a\) , \( 58667 a - 304014\) , \( 16899856 a - 86464733\bigr] \)

Rank

Rank: \( 0 \)

Isogeny matrix

\(\left(\begin{array}{rrrrrrrr} 1 & 3 & 4 & 12 & 6 & 2 & 12 & 4 \\ 3 & 1 & 12 & 4 & 2 & 6 & 4 & 12 \\ 4 & 12 & 1 & 12 & 6 & 2 & 3 & 4 \\ 12 & 4 & 12 & 1 & 2 & 6 & 4 & 3 \\ 6 & 2 & 6 & 2 & 1 & 3 & 2 & 6 \\ 2 & 6 & 2 & 6 & 3 & 1 & 6 & 2 \\ 12 & 4 & 3 & 4 & 2 & 6 & 1 & 12 \\ 4 & 12 & 4 & 3 & 6 & 2 & 12 & 1 \end{array}\right)\)

Isogeny graph