Elliptic curve isogeny class 841.9-b over number field \(\Q(\zeta_{15})^+\)

• Base field: \(\Q(\zeta_{15})^+\)
• Label: 4.4.1125.1-841.9-b
• Conductor: 841.9
• Rank: \( 0 \)

Base field \(\Q(\zeta_{15})^+\)

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

Elliptic curves in class 841.9-b over \(\Q(\zeta_{15})^+\)

Isogeny class 841.9-b contains 2 curves linked by isogenies of degree 3.

Curve label	Weierstrass Coefficients
841.9-b1	\( \bigl[0\) , \( -a^{2} - a + 1\) , \( a^{3} + a^{2} - 2 a - 1\) , \( a^{3} + a^{2} - 2 a\) , \( -16 a^{3} + 18 a^{2} + 49 a - 60\bigr] \)
841.9-b2	\( \bigl[0\) , \( a^{3} - a^{2} - 3 a + 2\) , \( a^{3} + a^{2} - 2 a - 2\) , \( -a + 2\) , \( -815183 a^{3} - 674230 a^{2} + 2028854 a + 446165\bigr] \)

Rank

Rank: \( 0 \)

Isogeny matrix

\(\left(\begin{array}{rr} 1 & 3 \\ 3 & 1 \end{array}\right)\)

Isogeny graph