Properties

Base field \(\Q(\sqrt{7}) \)
Label 2.2.28.1-648.1-m
Conductor 648.1
Rank \( 1 \)

Related objects

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

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

Elliptic curves in class 648.1-m over \(\Q(\sqrt{7}) \)

Isogeny class 648.1-m contains 6 curves linked by isogenies of degrees dividing 8.

Curve label Weierstrass Coefficients
648.1-m1 \( \bigl[a + 1\) , \( a + 1\) , \( 0\) , \( -1689 a + 4485\) , \( -450610 a + 1192215\bigr] \)
648.1-m2 \( \bigl[0\) , \( 0\) , \( 0\) , \( 6\) , \( -7\bigr] \)
648.1-m3 \( \bigl[a + 1\) , \( a + 1\) , \( a + 1\) , \( -466 a - 1234\) , \( -7779 a - 20582\bigr] \)
648.1-m4 \( \bigl[a + 1\) , \( a + 1\) , \( 0\) , \( 2631 a - 6945\) , \( -114640 a + 303321\bigr] \)
648.1-m5 \( \bigl[a + 1\) , \( a + 1\) , \( a + 1\) , \( -6946 a - 18379\) , \( -528879 a - 1399283\bigr] \)
648.1-m6 \( \bigl[a + 1\) , \( a + 1\) , \( a + 1\) , \( -41506 a - 109819\) , \( 7391211 a + 19555309\bigr] \)

Rank

Rank: \( 1 \)

Isogeny matrix

\(\left(\begin{array}{rrrrrr} 1 & 8 & 4 & 2 & 8 & 4 \\ 8 & 1 & 2 & 4 & 4 & 8 \\ 4 & 2 & 1 & 2 & 2 & 4 \\ 2 & 4 & 2 & 1 & 4 & 2 \\ 8 & 4 & 2 & 4 & 1 & 8 \\ 4 & 8 & 4 & 2 & 8 & 1 \end{array}\right)\)

Isogeny graph