Properties

Label 2.7.ae_k
Base Field $\F_{7}$
Dimension $2$
$p$-rank $2$
Principally polarizable
Contains a Jacobian

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Invariants

Base field:  $\F_{7}$
Dimension:  $2$
Weil polynomial:  $1 - 4 x + 10 x^{2} - 28 x^{3} + 49 x^{4}$
Frobenius angles:  $\pm0.134159304295$, $\pm0.550039816438$
Angle rank:  $2$ (numerical)
Number field:  4.0.2048.2
Galois group:  $C_4$

This isogeny class is simple.

Newton polygon

This isogeny class is ordinary.

$p$-rank:  $2$
Slopes:  $[0, 0, 1, 1]$

Point counts

This isogeny class contains a Jacobian, and hence is principally polarizable.

Point counts of the abelian variety

$r$ 1 2 3 4 5 6 7 8 9 10
$A(\F_{q^r})$ 28 2576 108892 5605376 287844508 13955163152 678356898268 33251359490048 1629327895324444 79796787595788816

Point counts of the curve

$r$ 1 2 3 4 5 6 7 8 9 10
$C(\F_{q^r})$ 4 54 316 2334 17124 118614 823708 5767998 40376260 282491254

Decomposition

This is a simple isogeny class.

Base change

This is a primitive isogeny class.