Elliptic curve isogeny class 200.1-a over number field \(\Q(\sqrt{7}) \)

• Base field: \(\Q(\sqrt{7}) \)
• Label: 2.2.28.1-200.1-a
• Conductor: 200.1
• Rank: \( 0 \)

Base field \(\Q(\sqrt{7}) \)

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

Elliptic curves in class 200.1-a over \(\Q(\sqrt{7}) \)

Isogeny class 200.1-a contains 4 curves linked by isogenies of degrees dividing 4.

Curve label	Weierstrass Coefficients
200.1-a1	\( \bigl[a + 1\) , \( a + 1\) , \( a + 1\) , \( 158 a + 417\) , \( -2887 a - 7639\bigr] \)
200.1-a2	\( \bigl[a + 1\) , \( a + 1\) , \( a + 1\) , \( -82 a - 218\) , \( -767 a - 2030\bigr] \)
200.1-a3	\( \bigl[0\) , \( 0\) , \( 0\) , \( -2\) , \( 1\bigr] \)
200.1-a4	\( \bigl[a + 1\) , \( a + 1\) , \( 0\) , \( 1287 a - 3389\) , \( 40324 a - 106675\bigr] \)

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