Properties

Base field \(\Q(\zeta_{20})^+\)
Label 4.4.2000.1-80.1-b
Conductor 80.1
Rank \( 0 \)

Related objects

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Base field \(\Q(\zeta_{20})^+\)

Generator \(a\), with minimal polynomial \( x^{4} - 5 x^{2} + 5 \); class number \(1\).

Elliptic curves in class 80.1-b over \(\Q(\zeta_{20})^+\)

Isogeny class 80.1-b contains 16 curves linked by isogenies of degrees dividing 48.

Curve label Weierstrass Coefficients
80.1-b1 \( \bigl[a^{3} + a^{2} - 3 a - 2\) , \( -a^{3} - a^{2} + 3 a + 3\) , \( a^{3} - 2 a + 1\) , \( -21 a^{3} - 24 a^{2} + 74 a + 85\) , \( -102 a^{3} - 120 a^{2} + 368 a + 432\bigr] \)
80.1-b2 \( \bigl[a^{2} + a - 3\) , \( a^{3} - 4 a\) , \( a^{3} - 2 a + 1\) , \( -4 a^{3} - 16 a^{2} - 6 a + 18\) , \( 29 a^{3} + 52 a^{2} - 47 a - 79\bigr] \)
80.1-b3 \( \bigl[a^{2} + a - 3\) , \( -a^{2} - a + 3\) , \( 0\) , \( -17 a^{3} - 25 a^{2} + 61 a + 84\) , \( 808 a^{3} + 953 a^{2} - 2922 a - 3440\bigr] \)
80.1-b4 \( \bigl[a^{2} + a - 3\) , \( -a^{3} - a^{2} + 4 a + 3\) , \( 0\) , \( 17 a^{3} - 25 a^{2} - 61 a + 84\) , \( -808 a^{3} + 953 a^{2} + 2922 a - 3440\bigr] \)
80.1-b5 \( \bigl[a^{3} + a^{2} - 3 a - 2\) , \( a^{3} + a^{2} - 3 a - 2\) , \( 0\) , \( -10 a^{3} + 25 a^{2} + 13 a - 41\) , \( 498 a^{3} - 953 a^{2} - 686 a + 1325\bigr] \)
80.1-b6 \( \bigl[a^{3} + a^{2} - 3 a - 2\) , \( -a^{3} + a^{2} + 2 a - 2\) , \( 0\) , \( 10 a^{3} + 25 a^{2} - 13 a - 41\) , \( -498 a^{3} - 953 a^{2} + 686 a + 1325\bigr] \)
80.1-b7 \( \bigl[a^{3} + a^{2} - 3 a - 2\) , \( -a^{3} + a^{2} + 2 a - 2\) , \( 0\) , \( -25 a^{3} - 45 a^{2} + 32 a + 59\) , \( -143 a^{3} - 270 a^{2} + 199 a + 375\bigr] \)
80.1-b8 \( \bigl[a^{3} + a^{2} - 3 a - 2\) , \( 0\) , \( a^{3} - 2 a + 1\) , \( -a^{3} - 10 a^{2} - 34 a - 35\) , \( -18 a^{3} - 106 a^{2} - 209 a - 139\bigr] \)
80.1-b9 \( \bigl[0\) , \( 1\) , \( 0\) , \( -41\) , \( -116\bigr] \)
80.1-b10 \( \bigl[0\) , \( 1\) , \( 0\) , \( -1\) , \( 0\bigr] \)
80.1-b11 \( \bigl[a^{3} - 2 a + 1\) , \( a^{2} - 4\) , \( a^{3} + a^{2} - 3 a - 2\) , \( 256 a^{3} + 212 a^{2} - 867 a - 897\) , \( 1894 a^{3} + 1674 a^{2} - 6466 a - 6838\bigr] \)
80.1-b12 \( \bigl[a^{3} - 2 a + 1\) , \( -a^{3} + 3 a\) , \( a^{3} - 2 a + 1\) , \( 98 a^{3} - 214 a^{2} - 38 a + 166\) , \( 1040 a^{3} - 2148 a^{2} - 871 a + 2267\bigr] \)
80.1-b13 \( \bigl[a^{3} - 2 a + 1\) , \( a^{3} - a^{2} - 4 a + 2\) , \( 0\) , \( 371 a^{3} - 637 a^{2} - 687 a + 1034\) , \( 5386 a^{3} - 10605 a^{2} - 6682 a + 13949\bigr] \)
80.1-b14 \( \bigl[a^{3} - 2 a + 1\) , \( a^{3} - a^{2} - 3 a + 2\) , \( a^{3} + a^{2} - 3 a - 2\) , \( -370 a^{3} - 636 a^{2} + 683 a + 1030\) , \( -5628 a^{3} - 11087 a^{2} + 6772 a + 14228\bigr] \)
80.1-b15 \( \bigl[a^{3} - 2 a + 1\) , \( -a^{2} + a + 2\) , \( 0\) , \( -426 a^{3} + 637 a^{2} + 1649 a - 2151\) , \( -9476 a^{3} + 10605 a^{2} + 33814 a - 39076\bigr] \)
80.1-b16 \( \bigl[a^{3} - 2 a + 1\) , \( -a^{3} - a^{2} + 4 a + 2\) , \( a^{2} + a - 3\) , \( 426 a^{3} + 633 a^{2} - 1648 a - 2142\) , \( 10111 a^{3} + 11087 a^{2} - 35961 a - 41207\bigr] \)

Rank

Rank: \( 0 \)

Isogeny matrix

\(\left(\begin{array}{rrrrrrrrrrrrrrrr} 1 & 4 & 8 & 8 & 8 & 8 & 4 & 3 & 6 & 2 & 12 & 12 & 24 & 24 & 24 & 24 \\ 4 & 1 & 2 & 2 & 8 & 8 & 4 & 12 & 6 & 2 & 12 & 3 & 24 & 24 & 6 & 6 \\ 8 & 2 & 1 & 4 & 16 & 16 & 8 & 24 & 12 & 4 & 24 & 6 & 48 & 48 & 12 & 3 \\ 8 & 2 & 4 & 1 & 16 & 16 & 8 & 24 & 12 & 4 & 24 & 6 & 48 & 48 & 3 & 12 \\ 8 & 8 & 16 & 16 & 1 & 4 & 2 & 24 & 12 & 4 & 6 & 24 & 3 & 12 & 48 & 48 \\ 8 & 8 & 16 & 16 & 4 & 1 & 2 & 24 & 12 & 4 & 6 & 24 & 12 & 3 & 48 & 48 \\ 4 & 4 & 8 & 8 & 2 & 2 & 1 & 12 & 6 & 2 & 3 & 12 & 6 & 6 & 24 & 24 \\ 3 & 12 & 24 & 24 & 24 & 24 & 12 & 1 & 2 & 6 & 4 & 4 & 8 & 8 & 8 & 8 \\ 6 & 6 & 12 & 12 & 12 & 12 & 6 & 2 & 1 & 3 & 2 & 2 & 4 & 4 & 4 & 4 \\ 2 & 2 & 4 & 4 & 4 & 4 & 2 & 6 & 3 & 1 & 6 & 6 & 12 & 12 & 12 & 12 \\ 12 & 12 & 24 & 24 & 6 & 6 & 3 & 4 & 2 & 6 & 1 & 4 & 2 & 2 & 8 & 8 \\ 12 & 3 & 6 & 6 & 24 & 24 & 12 & 4 & 2 & 6 & 4 & 1 & 8 & 8 & 2 & 2 \\ 24 & 24 & 48 & 48 & 3 & 12 & 6 & 8 & 4 & 12 & 2 & 8 & 1 & 4 & 16 & 16 \\ 24 & 24 & 48 & 48 & 12 & 3 & 6 & 8 & 4 & 12 & 2 & 8 & 4 & 1 & 16 & 16 \\ 24 & 6 & 12 & 3 & 48 & 48 & 24 & 8 & 4 & 12 & 8 & 2 & 16 & 16 & 1 & 4 \\ 24 & 6 & 3 & 12 & 48 & 48 & 24 & 8 & 4 & 12 & 8 & 2 & 16 & 16 & 4 & 1 \end{array}\right)\)

Isogeny graph