Properties

Label 3.8.am_cq_ajd
Base field $\F_{2^{3}}$
Dimension $3$
$p$-rank $3$
Ordinary yes
Supersingular no
Simple no
Geometrically simple no
Primitive yes
Principally polarizable yes
Contains a Jacobian no

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Invariants

Base field:  $\F_{2^{3}}$
Dimension:  $3$
L-polynomial:  $( 1 - 5 x + 8 x^{2} )( 1 - 7 x + 25 x^{2} - 56 x^{3} + 64 x^{4} )$
  $1 - 12 x + 68 x^{2} - 237 x^{3} + 544 x^{4} - 768 x^{5} + 512 x^{6}$
Frobenius angles:  $\pm0.113218980851$, $\pm0.154919815756$, $\pm0.403003401001$
Angle rank:  $3$ (numerical)
Isomorphism classes:  3

This isogeny class is not simple, primitive, ordinary, and not supersingular. It is principally polarizable.

Newton polygon

This isogeny class is ordinary.

$p$-rank:  $3$
Slopes:  $[0, 0, 0, 1, 1, 1]$

Point counts

Point counts of the abelian variety

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $108$ $231336$ $136940544$ $68492574864$ $35171229540348$

Point counts of the (virtual) curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $-3$ $57$ $522$ $4081$ $32757$ $263430$ $2104701$ $16797281$ $134239410$ $1073726457$

Jacobians and polarizations

This isogeny class is principally polarizable, but does not contain a Jacobian.

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{2^{3}}$.

Endomorphism algebra over $\F_{2^{3}}$
The isogeny class factors as 1.8.af $\times$ 2.8.ah_z 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
3.8.ac_ac_n$2$(not in LMFDB)
3.8.c_ac_an$2$(not in LMFDB)
3.8.m_cq_jd$2$(not in LMFDB)