Properties

Base field \(\Q(\sqrt{2}, \sqrt{3})\)
Label 4.4.2304.1-256.1-j
Conductor 256.1
Rank \( 0 \)

Related objects

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Base field \(\Q(\sqrt{2}, \sqrt{3})\)

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

Elliptic curves in class 256.1-j over \(\Q(\sqrt{2}, \sqrt{3})\)

Isogeny class 256.1-j contains 18 curves linked by isogenies of degrees dividing 72.

Curve label Weierstrass Coefficients
256.1-j1 \( \bigl[a^{3} - 3 a\) , \( -a^{3} + 3 a\) , \( 0\) , \( 48 a^{3} + 10 a^{2} - 194 a - 98\) , \( -205 a^{3} - 110 a^{2} + 915 a + 475\bigr] \)
256.1-j2 \( \bigl[a^{3} - 3 a\) , \( a^{3} - 3 a - 1\) , \( 0\) , \( 48 a^{3} + 10 a^{2} - 194 a - 98\) , \( 205 a^{3} + 110 a^{2} - 915 a - 475\bigr] \)
256.1-j3 \( \bigl[a^{3} - 3 a\) , \( -a^{3} + 3 a - 1\) , \( 0\) , \( -48 a^{3} + 10 a^{2} + 194 a - 98\) , \( -205 a^{3} + 110 a^{2} + 915 a - 475\bigr] \)
256.1-j4 \( \bigl[a^{3} - 3 a\) , \( a^{3} - 3 a\) , \( 0\) , \( -48 a^{3} + 10 a^{2} + 194 a - 98\) , \( 205 a^{3} - 110 a^{2} - 915 a + 475\bigr] \)
256.1-j5 \( \bigl[a^{3} + a^{2} - 3 a - 1\) , \( -a^{3} - a^{2} + 5 a + 1\) , \( 0\) , \( -15 a^{3} - 25 a^{2} + 9 a + 10\) , \( 43 a^{3} + 83 a^{2} - 9 a - 21\bigr] \)
256.1-j6 \( \bigl[a^{3} + a^{2} - 3 a - 1\) , \( -a^{3} + a^{2} + 3 a - 3\) , \( 0\) , \( 5 a^{3} + a^{2} - 19 a - 4\) , \( 3 a^{3} + a^{2} - 13 a - 9\bigr] \)
256.1-j7 \( \bigl[a^{3} - 3 a\) , \( a^{3} - 3 a - 1\) , \( 0\) , \( -2 a^{3} + 6 a + 2\) , \( 3 a^{3} - 9 a - 5\bigr] \)
256.1-j8 \( \bigl[a^{3} - 3 a\) , \( -a^{3} + 3 a\) , \( 0\) , \( -2 a^{3} + 6 a + 2\) , \( -3 a^{3} + 9 a + 5\bigr] \)
256.1-j9 \( \bigl[a^{3} - 3 a\) , \( -a^{3} + 3 a - 1\) , \( 0\) , \( 2 a^{3} - 6 a + 2\) , \( -3 a^{3} + 9 a - 5\bigr] \)
256.1-j10 \( \bigl[a^{3} - 3 a\) , \( a^{3} - 3 a\) , \( 0\) , \( 2 a^{3} - 6 a + 2\) , \( 3 a^{3} - 9 a + 5\bigr] \)
256.1-j11 \( \bigl[a^{3} + a^{2} - 3 a - 1\) , \( -a^{3} + a^{2} + 3 a - 3\) , \( 0\) , \( 75 a^{3} + a^{2} - 269 a - 124\) , \( -355 a^{3} - 297 a^{2} + 1601 a + 857\bigr] \)
256.1-j12 \( \bigl[a^{3} + a^{2} - 3 a - 1\) , \( a^{3} - 4 a - 1\) , \( a^{3} + a^{2} - 3 a - 1\) , \( 980 a^{3} + 505 a^{2} - 3658 a - 1897\) , \( 21780 a^{3} + 11274 a^{2} - 81292 a - 42078\bigr] \)
256.1-j13 \( \bigl[a^{3} + a^{2} - 3 a - 1\) , \( a^{3} + a^{2} - 5 a - 3\) , \( 0\) , \( -75 a^{3} + a^{2} + 269 a - 124\) , \( 355 a^{3} - 297 a^{2} - 1601 a + 857\bigr] \)
256.1-j14 \( \bigl[a^{3} + a^{2} - 3 a - 1\) , \( -a^{3} + 5 a - 1\) , \( 0\) , \( -979 a^{3} + 507 a^{2} + 3655 a - 1894\) , \( -21274 a^{3} + 11012 a^{2} + 79396 a - 41098\bigr] \)
256.1-j15 \( \bigl[a^{3} - 3 a\) , \( a^{3} - 3 a - 1\) , \( 0\) , \( -2 a^{3} - 10 a^{2} + 56 a - 58\) , \( -95 a^{3} - 110 a^{2} + 585 a - 35\bigr] \)
256.1-j16 \( \bigl[a^{3} - 3 a\) , \( -a^{3} + 3 a\) , \( 0\) , \( -2 a^{3} - 10 a^{2} + 56 a - 58\) , \( 95 a^{3} + 110 a^{2} - 585 a + 35\bigr] \)
256.1-j17 \( \bigl[a^{3} - 3 a\) , \( a^{3} - 3 a\) , \( 0\) , \( 2 a^{3} - 10 a^{2} - 56 a - 58\) , \( -95 a^{3} + 110 a^{2} + 585 a + 35\bigr] \)
256.1-j18 \( \bigl[a^{3} - 3 a\) , \( -a^{3} + 3 a - 1\) , \( 0\) , \( 2 a^{3} - 10 a^{2} - 56 a - 58\) , \( 95 a^{3} - 110 a^{2} - 585 a - 35\bigr] \)

Rank

Rank: \( 0 \)

Isogeny matrix

\(\left(\begin{array}{rrrrrrrrrrrrrrrrrr} 1 & 72 & 8 & 36 & 6 & 12 & 24 & 3 & 24 & 12 & 4 & 18 & 36 & 2 & 8 & 9 & 4 & 72 \\ 72 & 1 & 36 & 8 & 12 & 6 & 3 & 24 & 12 & 24 & 18 & 4 & 2 & 36 & 9 & 8 & 72 & 4 \\ 8 & 36 & 1 & 72 & 12 & 6 & 12 & 24 & 3 & 24 & 2 & 36 & 18 & 4 & 4 & 72 & 8 & 9 \\ 36 & 8 & 72 & 1 & 6 & 12 & 24 & 12 & 24 & 3 & 36 & 2 & 4 & 18 & 72 & 4 & 9 & 8 \\ 6 & 12 & 12 & 6 & 1 & 2 & 4 & 2 & 4 & 2 & 6 & 3 & 6 & 3 & 12 & 6 & 6 & 12 \\ 12 & 6 & 6 & 12 & 2 & 1 & 2 & 4 & 2 & 4 & 3 & 6 & 3 & 6 & 6 & 12 & 12 & 6 \\ 24 & 3 & 12 & 24 & 4 & 2 & 1 & 8 & 4 & 8 & 6 & 12 & 6 & 12 & 3 & 24 & 24 & 12 \\ 3 & 24 & 24 & 12 & 2 & 4 & 8 & 1 & 8 & 4 & 12 & 6 & 12 & 6 & 24 & 3 & 12 & 24 \\ 24 & 12 & 3 & 24 & 4 & 2 & 4 & 8 & 1 & 8 & 6 & 12 & 6 & 12 & 12 & 24 & 24 & 3 \\ 12 & 24 & 24 & 3 & 2 & 4 & 8 & 4 & 8 & 1 & 12 & 6 & 12 & 6 & 24 & 12 & 3 & 24 \\ 4 & 18 & 2 & 36 & 6 & 3 & 6 & 12 & 6 & 12 & 1 & 18 & 9 & 2 & 2 & 36 & 4 & 18 \\ 18 & 4 & 36 & 2 & 3 & 6 & 12 & 6 & 12 & 6 & 18 & 1 & 2 & 9 & 36 & 2 & 18 & 4 \\ 36 & 2 & 18 & 4 & 6 & 3 & 6 & 12 & 6 & 12 & 9 & 2 & 1 & 18 & 18 & 4 & 36 & 2 \\ 2 & 36 & 4 & 18 & 3 & 6 & 12 & 6 & 12 & 6 & 2 & 9 & 18 & 1 & 4 & 18 & 2 & 36 \\ 8 & 9 & 4 & 72 & 12 & 6 & 3 & 24 & 12 & 24 & 2 & 36 & 18 & 4 & 1 & 72 & 8 & 36 \\ 9 & 8 & 72 & 4 & 6 & 12 & 24 & 3 & 24 & 12 & 36 & 2 & 4 & 18 & 72 & 1 & 36 & 8 \\ 4 & 72 & 8 & 9 & 6 & 12 & 24 & 12 & 24 & 3 & 4 & 18 & 36 & 2 & 8 & 36 & 1 & 72 \\ 72 & 4 & 9 & 8 & 12 & 6 & 12 & 24 & 3 & 24 & 18 & 4 & 2 & 36 & 36 & 8 & 72 & 1 \end{array}\right)\)

Isogeny graph