Properties

Base field \(\Q(\zeta_{16})^+\)
Label 4.4.2048.1-1.1-a
Conductor 1.1
Rank \( 0 \)

Related objects

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Base field \(\Q(\zeta_{16})^+\)

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

Elliptic curves in class 1.1-a over \(\Q(\zeta_{16})^+\)

Isogeny class 1.1-a contains 12 curves linked by isogenies of degrees dividing 40.

Curve label Weierstrass Coefficients
1.1-a1 \( \bigl[a^{3} + a^{2} - 3 a - 2\) , \( -a^{2} - a + 3\) , \( 1\) , \( a^{3} - 4 a\) , \( -22 a^{3} - 17 a^{2} + 75 a + 58\bigr] \)
1.1-a2 \( \bigl[a^{3} + a^{2} - 2 a - 2\) , \( a^{3} - a^{2} - 3 a + 2\) , \( a^{2} - 1\) , \( 120 a^{3} - 250 a^{2} + 40 a + 19\) , \( 2105 a^{3} - 4179 a^{2} - 366 a + 1660\bigr] \)
1.1-a3 \( \bigl[a^{3} + a^{2} - 2 a - 2\) , \( -a^{3} - a^{2} + 4 a + 2\) , \( a^{3} + a^{2} - 2 a - 1\) , \( -2 a^{3} - 2 a^{2} + 4 a + 3\) , \( -a^{3} - 2 a^{2} + a + 2\bigr] \)
1.1-a4 \( \bigl[a^{2} - 2\) , \( a^{3} - a^{2} - 2 a + 3\) , \( a + 1\) , \( 120 a^{3} + 108 a^{2} - 523 a - 576\) , \( 1768 a^{3} + 1361 a^{2} - 7025 a - 6474\bigr] \)
1.1-a5 \( \bigl[a^{2} - 2\) , \( a^{3} - a^{2} - 2 a + 3\) , \( a + 1\) , \( -2 a^{2} - 3 a + 4\) , \( a^{3} - 3 a\bigr] \)
1.1-a6 \( \bigl[a^{2} + a - 2\) , \( a^{2} - a - 1\) , \( 1\) , \( a^{3} - a^{2} - 2 a + 2\) , \( -9 a^{3} + 17 a^{2} + 5 a - 10\bigr] \)
1.1-a7 \( \bigl[a^{2} + a - 2\) , \( -a^{3} + a^{2} + 3 a - 1\) , \( 1\) , \( -a^{3} - a^{2} + a + 2\) , \( 9 a^{3} + 17 a^{2} - 5 a - 10\bigr] \)
1.1-a8 \( \bigl[a^{2} + a - 2\) , \( a^{3} - 3 a\) , \( a^{3} - 2 a + 1\) , \( 4 a^{3} - 5 a + 3\) , \( 3 a^{3} - 2 a\bigr] \)
1.1-a9 \( \bigl[a^{3} - 3 a\) , \( -a^{3} + 2 a - 1\) , \( a + 1\) , \( 1096 a^{3} + 877 a^{2} - 3737 a - 3004\) , \( 30377 a^{3} + 23405 a^{2} - 103704 a - 79930\bigr] \)
1.1-a10 \( \bigl[a^{3} - 3 a\) , \( a^{3} - a^{2} - 3 a + 2\) , \( 1\) , \( -113 a^{3} + 112 a^{2} + 423 a - 455\) , \( -1225 a^{3} + 1100 a^{2} + 4334 a - 4038\bigr] \)
1.1-a11 \( \bigl[a^{3} - 3 a\) , \( -a^{3} - a^{2} + 3 a + 2\) , \( 1\) , \( 112 a^{3} + 112 a^{2} - 420 a - 455\) , \( 1225 a^{3} + 1100 a^{2} - 4334 a - 4038\bigr] \)
1.1-a12 \( \bigl[a\) , \( a^{2} + a - 2\) , \( 1\) , \( -84 a^{3} - 112 a^{2} + 139 a - 7\) , \( -659 a^{3} - 1100 a^{2} + 752 a + 362\bigr] \)

Rank

Rank: \( 0 \)

Isogeny matrix

\(\left(\begin{array}{rrrrrrrrrrrr} 1 & 10 & 2 & 20 & 4 & 8 & 8 & 4 & 40 & 5 & 20 & 40 \\ 10 & 1 & 5 & 2 & 10 & 20 & 20 & 10 & 4 & 2 & 2 & 4 \\ 2 & 5 & 1 & 10 & 2 & 4 & 4 & 2 & 20 & 10 & 10 & 20 \\ 20 & 2 & 10 & 1 & 5 & 10 & 10 & 20 & 2 & 4 & 4 & 2 \\ 4 & 10 & 2 & 5 & 1 & 2 & 2 & 4 & 10 & 20 & 20 & 10 \\ 8 & 20 & 4 & 10 & 2 & 1 & 4 & 8 & 20 & 40 & 40 & 5 \\ 8 & 20 & 4 & 10 & 2 & 4 & 1 & 8 & 5 & 40 & 40 & 20 \\ 4 & 10 & 2 & 20 & 4 & 8 & 8 & 1 & 40 & 20 & 5 & 40 \\ 40 & 4 & 20 & 2 & 10 & 20 & 5 & 40 & 1 & 8 & 8 & 4 \\ 5 & 2 & 10 & 4 & 20 & 40 & 40 & 20 & 8 & 1 & 4 & 8 \\ 20 & 2 & 10 & 4 & 20 & 40 & 40 & 5 & 8 & 4 & 1 & 8 \\ 40 & 4 & 20 & 2 & 10 & 5 & 20 & 40 & 4 & 8 & 8 & 1 \end{array}\right)\)

Isogeny graph