Properties

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

Related objects

Downloads

Learn more

Invariants

Base field:  $\F_{59}$
Dimension:  $2$
L-polynomial:  $( 1 + 2 x + 59 x^{2} )( 1 + 12 x + 59 x^{2} )$
  $1 + 14 x + 142 x^{2} + 826 x^{3} + 3481 x^{4}$
Frobenius angles:  $\pm0.541558382732$, $\pm0.785358177425$
Angle rank:  $2$ (numerical)
Jacobians:  $84$

This isogeny class is not 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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $4464$ $12427776$ $42028689456$ $146833477484544$ $511102750531877424$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $74$ $3570$ $204638$ $12117614$ $714904714$ $42181078626$ $2488649011006$ $146830410150814$ $8662996172307722$ $511116752394181650$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 84 curves (of which all are hyperelliptic):

Decomposition and endomorphism algebra

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

Endomorphism algebra over $\F_{59}$
The isogeny class factors as 1.59.c $\times$ 1.59.m and its endomorphism algebra is a direct product of the endomorphism algebras for each isotypic factor. The endomorphism algebra for each factor is:

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.ao_fm$2$(not in LMFDB)
2.59.ak_dq$2$(not in LMFDB)
2.59.k_dq$2$(not in LMFDB)