Properties

Label 2.59.n_gd
Base field $\F_{59}$
Dimension $2$
$p$-rank $2$
Ordinary yes
Supersingular no
Simple yes
Geometrically simple yes
Primitive yes
Principally polarizable yes
Contains a Jacobian yes

Related objects

Downloads

Learn more

Invariants

Base field:  $\F_{59}$
Dimension:  $2$
L-polynomial:  $1 + 13 x + 159 x^{2} + 767 x^{3} + 3481 x^{4}$
Frobenius angles:  $\pm0.613932648544$, $\pm0.665158734200$
Angle rank:  $2$ (numerical)
Number field:  4.0.921125.1
Galois group:  $D_{4}$
Jacobians:  $14$
Isomorphism classes:  14
Cyclic group of points:    yes

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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $4421$ $12648481$ $41831904311$ $146859552376445$ $511173970144978096$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $73$ $3631$ $203677$ $12119763$ $715004328$ $42179899051$ $2488651096627$ $146830473811443$ $8662995617838883$ $511116752661073206$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 14 curves (of which all are hyperelliptic):

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{59}$.

Endomorphism algebra over $\F_{59}$
The endomorphism algebra of this simple isogeny class is 4.0.921125.1.

Base change

This is a primitive isogeny class.

Twists

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

TwistExtension degreeCommon base change
2.59.an_gd$2$(not in LMFDB)