Properties

Base field 4.4.13968.1
Label 4.4.13968.1-8.2-b
Conductor 8.2
Rank \( 1 \)

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Base field 4.4.13968.1

Generator \(a\), with minimal polynomial \( x^{4} - 2 x^{3} - 7 x^{2} + 8 x + 4 \); class number \(1\).

Elliptic curves in class 8.2-b over 4.4.13968.1

Isogeny class 8.2-b contains 4 curves linked by isogenies of degrees dividing 6.

Curve label Weierstrass Coefficients
8.2-b1 \( \bigl[\frac{1}{2} a^{2} + \frac{1}{2} a - 2\) , \( -\frac{1}{2} a^{3} + a^{2} + \frac{7}{2} a - 3\) , \( \frac{1}{2} a^{3} - \frac{1}{2} a^{2} - 2 a + 1\) , \( 2 a^{3} - 16 a - 14\) , \( -\frac{21}{2} a^{3} + \frac{15}{2} a^{2} + 83 a + 24\bigr] \)
8.2-b2 \( \bigl[\frac{1}{2} a^{2} + \frac{1}{2} a - 2\) , \( -\frac{1}{2} a^{3} + \frac{1}{2} a^{2} + 4 a - 1\) , \( \frac{1}{2} a^{2} - \frac{1}{2} a - 1\) , \( -\frac{1}{2} a^{3} + a^{2} + \frac{9}{2} a - 2\) , \( \frac{1}{2} a^{2} + \frac{1}{2} a\bigr] \)
8.2-b3 \( \bigl[\frac{1}{2} a^{3} - \frac{1}{2} a^{2} - 2 a + 1\) , \( \frac{1}{2} a^{2} - \frac{1}{2} a - 3\) , \( \frac{1}{2} a^{2} + \frac{1}{2} a - 2\) , \( -2 a^{3} + 3 a^{2} + 19 a + 6\) , \( \frac{27}{2} a^{3} - 6 a^{2} - \frac{197}{2} a - 33\bigr] \)
8.2-b4 \( \bigl[\frac{1}{2} a^{3} - \frac{1}{2} a^{2} - 2 a + 1\) , \( -\frac{1}{2} a^{3} + \frac{1}{2} a^{2} + 2 a - 1\) , \( \frac{1}{2} a^{3} - \frac{7}{2} a - 1\) , \( -\frac{3}{2} a^{3} + \frac{7}{2} a^{2} + 5 a - 12\) , \( 2 a^{3} - 4 a^{2} - 15 a + 18\bigr] \)

Rank

Rank: \( 1 \)

Isogeny matrix

\(\left(\begin{array}{rrrr} 1 & 2 & 3 & 6 \\ 2 & 1 & 6 & 3 \\ 3 & 6 & 1 & 2 \\ 6 & 3 & 2 & 1 \end{array}\right)\)

Isogeny graph