Properties

Label 2.59.ad_ei
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

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Invariants

Base field:  $\F_{59}$
Dimension:  $2$
L-polynomial:  $1 - 3 x + 112 x^{2} - 177 x^{3} + 3481 x^{4}$
Frobenius angles:  $\pm0.408135478600$, $\pm0.528471906542$
Angle rank:  $2$ (numerical)
Number field:  4.0.55295064.1
Galois group:  $D_{4}$
Jacobians:  $72$
Isomorphism classes:  72
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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $3414$ $12884436$ $42273199512$ $146717340392736$ $511095367973242074$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $57$ $3697$ $205830$ $12108025$ $714894387$ $42180820882$ $2488652477697$ $146830435619569$ $8662995856467090$ $511116752812226977$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 72 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 4.0.55295064.1.

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.d_ei$2$(not in LMFDB)