Properties

Base field 4.4.2777.1
Label 4.4.2777.1-128.2-a
Conductor 128.2
Rank \( 1 \)

Related objects

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Base field 4.4.2777.1

Generator \(a\), with minimal polynomial \( x^{4} - x^{3} - 4 x^{2} + x + 2 \); class number \(1\).

Elliptic curves in class 128.2-a over 4.4.2777.1

Isogeny class 128.2-a contains 4 curves linked by isogenies of degrees dividing 14.

Curve label Weierstrass Coefficients
128.2-a1 \( \bigl[a^{2} - a - 2\) , \( a^{2} - 2 a - 2\) , \( 0\) , \( -a^{3} + 3 a^{2} - 2 a + 1\) , \( 0\bigr] \)
128.2-a2 \( \bigl[a^{3} - 4 a\) , \( a^{2} - a - 1\) , \( a^{2} - 2\) , \( 150 a^{3} + 238 a^{2} - 894 a - 1988\) , \( 13305 a^{3} - 7194 a^{2} - 50412 a - 8997\bigr] \)
128.2-a3 \( \bigl[a^{3} - 3 a\) , \( -a^{2} + 2 a + 3\) , \( 0\) , \( -1341 a^{3} - 1930 a^{2} + 1043 a + 1163\) , \( 78103 a^{3} + 106898 a^{2} - 61425 a - 66588\bigr] \)
128.2-a4 \( \bigl[a\) , \( a^{3} - a^{2} - 3 a + 1\) , \( a^{3} - 4 a\) , \( 3 a^{3} - 8 a^{2} + 3 a + 3\) , \( 6 a^{3} - 19 a^{2} + 2 a + 6\bigr] \)

Rank

Rank: \( 1 \)

Isogeny matrix

\(\left(\begin{array}{rrrr} 1 & 14 & 7 & 2 \\ 14 & 1 & 2 & 7 \\ 7 & 2 & 1 & 14 \\ 2 & 7 & 14 & 1 \end{array}\right)\)

Isogeny graph