Abelian variety isogeny class 1.383.abh over $\F_{383}$

• Label: 1.383.abh
• Base field: $\F_{383}$
• Dimension: $1$
• $p$-rank: $1$
• Ordinary: yes
• Supersingular: no
• Simple: yes
• Geometrically simple: yes
• Primitive: yes
• Principally polarizable: yes
• Contains a Jacobian: yes

Invariants

Base field:	$\F_{383}$
Dimension:	$1$
L-polynomial:	$1 - 33 x + 383 x^{2}$
Frobenius angles:	$\pm0.180721858648$
Angle rank:	$1$ (numerical)
Number field:	\(\Q(\sqrt{-443}) \)
Galois group:	$C_2$
Jacobians:	$5$
Isomorphism classes:	5

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

$r$	$1$	$2$	$3$	$4$	$5$
$A(\F_{q^r})$	$351$	$146367$	$56183868$	$21517851771$	$8241270302421$

Point counts of the curve

$r$	$1$	$2$	$3$	$4$	$5$	$6$	$7$	$8$	$9$	$10$
$C(\F_{q^r})$	$351$	$146367$	$56183868$	$21517851771$	$8241270302421$	$3156404535324144$	$1208902896975019779$	$463009808982008924883$	$177332756836989168414324$	$67918445868678142516760007$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 5 curves (of which 0 are hyperelliptic):

• $y^2=x^3+186 x+164$
• $y^2=x^3+81 x+81$
• $y^2=x^3+323 x+323$
• $y^2=x^3+129 x+129$
• $y^2=x^3+254 x+121$

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{383}$.

Endomorphism algebra over $\F_{383}$

The endomorphism algebra of this simple isogeny class is \(\Q(\sqrt{-443}) \).

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
1.383.bh	$2$	(not in LMFDB)