Properties

Label 2.113.ay_oa
Base field $\F_{113}$
Dimension $2$
$p$-rank $2$
Ordinary yes
Supersingular no
Simple yes
Geometrically simple yes
Primitive yes
Principally polarizable yes
Contains a Jacobian yes

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Invariants

Base field:  $\F_{113}$
Dimension:  $2$
L-polynomial:  $1 - 24 x + 364 x^{2} - 2712 x^{3} + 12769 x^{4}$
Frobenius angles:  $\pm0.262133049917$, $\pm0.351702574990$
Angle rank:  $2$ (numerical)
Number field:  4.0.50542848.1
Galois group:  $D_{4}$
Jacobians:  $120$
Isomorphism classes:  120

This isogeny class is simple and geometrically simple, primitive, ordinary, and not supersingular. It is principally polarizable and contains a Jacobian.

Newton polygon

This isogeny class is ordinary.

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

Point counts

Point counts of the abelian variety

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $10398$ $165016260$ $2088088521678$ $26589759741766800$ $339455911672006530798$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $90$ $12922$ $1447146$ $163079974$ $18424306890$ $2081948383834$ $235260517740282$ $26584441889787646$ $3004041939509737818$ $339456739003960293082$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 120 curves (of which all are hyperelliptic):

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{113}$.

Endomorphism algebra over $\F_{113}$
The endomorphism algebra of this simple isogeny class is 4.0.50542848.1.

Base change

This is a primitive isogeny class.

Twists

Below is a list of all twists of this isogeny class.

TwistExtension degreeCommon base change
2.113.y_oa$2$(not in LMFDB)