Abelian variety isogeny class 2.343.aco_cpx over $\F_{7^{3}}$

• Label: 2.343.aco_cpx
• Base field: $\F_{7^{3}}$
• Dimension: $2$
• $p$-rank: $2$
• Ordinary: yes
• Supersingular: no
• Simple: yes
• Geometrically simple: yes
• Primitive: yes
• Principally polarizable: yes
• Contains a Jacobian: yes

Invariants

Base field:	$\F_{7^{3}}$
Dimension:	$2$
L-polynomial:	$1 - 66 x + 1765 x^{2} - 22638 x^{3} + 117649 x^{4}$
Frobenius angles:	$\pm0.0694536755162$, $\pm0.201873846224$
Angle rank:	$2$ (numerical)
Number field:	4.0.5505600.3
Galois group:	$D_{4}$

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

$r$	$1$	$2$	$3$	$4$	$5$
$A(\F_{q^r})$	$96711$	$13744470609$	$1628173936472004$	$191581817391394731081$	$22539351420183050663128791$

Point counts of the curve

$r$	$1$	$2$	$3$	$4$	$5$	$6$	$7$	$8$	$9$	$10$
$C(\F_{q^r})$	$278$	$116824$	$40347668$	$13841329540$	$4747563854198$	$1628413640612998$	$558545864421326570$	$191581231375595424964$	$65712362363300450857484$	$22539340290688227847054264$

Jacobians and polarizations

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

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{7^{3}}$.

Endomorphism algebra over $\F_{7^{3}}$

The endomorphism algebra of this simple isogeny class is 4.0.5505600.3.

Base change

This is a primitive isogeny class.

Twists

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

Twist	Extension degree	Common base change
2.343.co_cpx	$2$	(not in LMFDB)