Properties

Label 2.79.ae_de
Base field $\F_{79}$
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:  $\F_{79}$
Dimension:  $2$
L-polynomial:  $1 - 4 x + 82 x^{2} - 316 x^{3} + 6241 x^{4}$
Frobenius angles:  $\pm0.288888113243$, $\pm0.627748277133$
Angle rank:  $2$ (numerical)
Number field:  4.0.1313600.3
Galois group:  $D_{4}$
Jacobians:  $330$

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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $6004$ $39890576$ $243072954676$ $1517554948895744$ $9468644832849315124$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $76$ $6390$ $493012$ $38961534$ $3077176236$ $243086063286$ $19203897384244$ $1517108844058494$ $119851595882740108$ $9468276084449615350$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 330 curves (of which all are hyperelliptic):

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{79}$.

Endomorphism algebra over $\F_{79}$
The endomorphism algebra of this simple isogeny class is 4.0.1313600.3.

Base change

This is a primitive isogeny class.

Twists

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

TwistExtension degreeCommon base change
2.79.e_de$2$(not in LMFDB)