Properties

Label 1.625.aw
Base field $\F_{5^{4}}$
Dimension $1$
$p$-rank $1$
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:  $\F_{5^{4}}$
Dimension:  $1$
L-polynomial:  $1 - 22 x + 625 x^{2}$
Frobenius angles:  $\pm0.354978438126$
Angle rank:  $1$ (numerical)
Number field:  \(\Q(\sqrt{-14}) \)
Galois group:  $C_2$

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:  $1$
Slopes:  $[0, 1]$

Point counts

Point counts of the abelian variety

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $604$ $391392$ $244171228$ $152588085120$ $95367416793244$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $604$ $391392$ $244171228$ $152588085120$ $95367416793244$ $59604644327189472$ $37252902984038328988$ $23283064365654310755840$ $14551915228373096466949084$ $9094947017729252669261417952$

Jacobians and polarizations

This isogeny class contains a Jacobian, and hence is principally polarizable.

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{5^{4}}$.

Endomorphism algebra over $\F_{5^{4}}$
The endomorphism algebra of this simple isogeny class is \(\Q(\sqrt{-14}) \).

Base change

This is a primitive isogeny class.

Twists

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

TwistExtension degreeCommon base change
1.625.w$2$(not in LMFDB)