Elliptic curve isogeny class 1024.1-b over number field \(\Q(\sqrt{5}) \)

• Base field: \(\Q(\sqrt{5}) \)
• Label: 2.2.5.1-1024.1-b
• Conductor: 1024.1
• Rank: \( 0 \)

Base field \(\Q(\sqrt{5}) \)

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

Rank

Rank: \( 0 \)

Isogeny matrix

\(\left(\begin{array}{rrrr} 1 & 2 & 4 & 4 \\ 2 & 1 & 2 & 2 \\ 4 & 2 & 1 & 4 \\ 4 & 2 & 4 & 1 \end{array}\right)\)

Isogeny graph

Elliptic curves in class 1024.1-b over \(\Q(\sqrt{5}) \)

Isogeny class 1024.1-b contains 4 curves linked by isogenies of degrees dividing 4.

Curve label	Weierstrass Coefficients
1024.1-b1	\( \bigl[0\) , \( -\phi + 1\) , \( 0\) , \( 5 \phi - 6\) , \( -2 \phi + 5\bigr] \)
1024.1-b2	\( \bigl[0\) , \( -\phi + 1\) , \( 0\) , \( -1\) , \( \phi - 1\bigr] \)
1024.1-b3	\( \bigl[0\) , \( -\phi + 1\) , \( 0\) , \( 10 \phi - 21\) , \( 31 \phi - 53\bigr] \)
1024.1-b4	\( \bigl[0\) , \( -\phi + 1\) , \( 0\) , \( -10 \phi - 1\) , \( 15 \phi + 7\bigr] \)