Elliptic curve isogeny class 40.1-a over number field \(\Q(\sqrt{15}) \)

• Base field: \(\Q(\sqrt{15}) \)
• Label: 2.2.60.1-40.1-a
• Conductor: 40.1
• Rank: \( 0 \)

Base field \(\Q(\sqrt{15}) \)

Generator \(a\), with minimal polynomial \( x^{2} - 15 \); class number \(2\).

Elliptic curves in class 40.1-a over \(\Q(\sqrt{15}) \)

Isogeny class 40.1-a contains 4 curves linked by isogenies of degrees dividing 4.

Curve label	Weierstrass Coefficients
40.1-a1	\( \bigl[0\) , \( 0\) , \( 0\) , \( 13\) , \( -34\bigr] \)
40.1-a2	\( \bigl[0\) , \( 0\) , \( 0\) , \( -7\) , \( -6\bigr] \)
40.1-a3	\( \bigl[0\) , \( 0\) , \( 0\) , \( -2\) , \( 1\bigr] \)
40.1-a4	\( \bigl[0\) , \( 0\) , \( 0\) , \( -107\) , \( -426\bigr] \)

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