Properties

Label 2.3.b_a
Base Field $\F_{3}$
Dimension $2$
$p$-rank $1$
Principally polarizable
Contains a Jacobian

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Invariants

Base field:  $\F_{3}$
Dimension:  $2$
Weil polynomial:  $( 1 - 2 x + 3 x^{2} )( 1 + 3 x + 3 x^{2} )$
Frobenius angles:  $\pm0.304086723985$, $\pm0.833333333333$
Angle rank:  $1$ (numerical)

Newton polygon

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

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
$A(\F_{q^r})$ 14 84 1064 8736 52514 536256 4428914 43365504 391199816 3500898324

Point counts of the curve

$r$ 1 2 3 4 5 6 7 8 9 10
$C(\F_{q^r})$ 5 9 38 105 215 738 2021 6609 19874 59289

Decomposition

1.3.ac $\times$ 1.3.d

Base change

This is a primitive isogeny class.