Abelian variety isogeny class 1.17.g over $\F_{17}$

• Label: 1.17.g
• Base field: $\F_{17}$
• 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:	$\F_{17}$
Dimension:	$1$
L-polynomial:	$1 + 6 x + 17 x^{2}$
Frobenius angles:	$\pm0.759367463010$
Angle rank:	$1$ (numerical)
Number field:	\(\Q(\sqrt{-2}) \)
Galois group:	$C_2$
Jacobians:	$3$
Isomorphism classes:	3
Cyclic group of points:	no
Non-cyclic primes:	$2$

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

$r$	$1$	$2$	$3$	$4$	$5$
$A(\F_{q^r})$	$24$	$288$	$4824$	$84096$	$1417944$

Point counts of the curve

$r$	$1$	$2$	$3$	$4$	$5$	$6$	$7$	$8$	$9$	$10$
$C(\F_{q^r})$	$24$	$288$	$4824$	$84096$	$1417944$	$24139296$	$410360856$	$6975595008$	$118588474008$	$2015993076768$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 3 curves (of which 0 are hyperelliptic):

• $y^2=x^3+10 x+13$
• $y^2=x^3+8 x+8$
• $y^2=x^3+13 x+13$

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{17}$.

Endomorphism algebra over $\F_{17}$

The endomorphism algebra of this simple isogeny class is \(\Q(\sqrt{-2}) \).

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
1.17.ag	$2$	1.289.ac