Properties

Label 2.113.abk_vc
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:  $1 - 36 x + 548 x^{2} - 4068 x^{3} + 12769 x^{4}$
Frobenius angles:  $\pm0.133628584847$, $\pm0.215153007500$
Angle rank:  $2$ (numerical)
Number field:  4.0.10496.2
Galois group:  $D_{4}$
Jacobians:  $22$
Isomorphism classes:  22

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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $9214$ $160526308$ $2082421357150$ $26588663941374864$ $339464120671168237054$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $78$ $12570$ $1443222$ $163073254$ $18424752438$ $2081955858810$ $235260577506606$ $26584442038695934$ $3004041937374144846$ $339456738977598233850$

Jacobians and polarizations

This isogeny class contains the Jacobians of 22 curves (of which all are hyperelliptic), and hence is principally polarizable:

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 4.0.10496.2.

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.bk_vc$2$(not in LMFDB)