Properties

Label 1.1024.acl
Base field $\F_{2^{10}}$
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:  $\F_{2^{10}}$
Dimension:  $1$
L-polynomial:  $1 - 63 x + 1024 x^{2}$
Frobenius angles:  $\pm0.0563432964760$
Angle rank:  $1$ (numerical)
Number field:  \(\Q(\sqrt{-127}) \)
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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $962$ $1046656$ $1073685314$ $1099510034688$ $1125899864345282$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $962$ $1046656$ $1073685314$ $1099510034688$ $1125899864345282$ $1152921503560837504$ $1180591620695029985858$ $1208925819614290265399808$ $1237940039285381842082011586$ $1267650600228229847272354830976$

Jacobians and polarizations

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

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{2^{10}}$.

Endomorphism algebra over $\F_{2^{10}}$
The endomorphism algebra of this simple isogeny class is \(\Q(\sqrt{-127}) \).

Base change

This is a primitive isogeny class.

Twists

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

TwistExtension degreeCommon base change
1.1024.cl$2$(not in LMFDB)