Properties

Label 2.113.abk_uy
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:  $1 - 36 x + 544 x^{2} - 4068 x^{3} + 12769 x^{4}$
Frobenius angles:  $\pm0.0881917305060$, $\pm0.238851186738$
Angle rank:  $2$ (numerical)
Number field:  4.0.4094208.2
Galois group:  $D_{4}$
Jacobians:  $32$
Isomorphism classes:  32

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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $9210$ $160419780$ $2081796358410$ $26586707020938000$ $339459915449879647050$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $78$ $12562$ $1442790$ $163061254$ $18424524198$ $2081952618514$ $235260543321294$ $26584441811918206$ $3004041937657675950$ $339456739013920454482$

Jacobians and polarizations

This isogeny class contains the Jacobians of 32 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 4.0.4094208.2.

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_uy$2$(not in LMFDB)