Abelian variety isogeny class 3.19.ag_ba_abs over $\F_{19}$

• Label: 3.19.ag_ba_abs
• Base field: $\F_{19}$
• Dimension: $3$
• $p$-rank: $3$
• Ordinary: yes
• Supersingular: no
• Simple: yes
• Geometrically simple: yes
• Primitive: yes
• Principally polarizable: yes
• Contains a Jacobian: yes

Invariants

Base field:	$\F_{19}$
Dimension:	$3$
L-polynomial:	$1 - 6 x + 26 x^{2} - 44 x^{3} + 494 x^{4} - 2166 x^{5} + 6859 x^{6}$
Frobenius angles:	$\pm0.245622620259$, $\pm0.291826102417$, $\pm0.719775534135$
Angle rank:	$3$ (numerical)
Number field:	6.0.1047718739.1
Galois group:	$S_4\times C_2$

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:	$3$
Slopes:	$[0, 0, 0, 1, 1, 1]$

Point counts

Point counts of the abelian variety

$r$	$1$	$2$	$3$	$4$	$5$
$A(\F_{q^r})$	$5164$	$49553744$	$328326872128$	$2247781811852096$	$15192262941025836604$

Point counts of the curve

$r$	$1$	$2$	$3$	$4$	$5$	$6$	$7$	$8$	$9$	$10$
$C(\F_{q^r})$	$14$	$378$	$6980$	$132338$	$2477914$	$47029884$	$893833822$	$16982985570$	$322687162364$	$6131074395578$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 35 hyperelliptic curves, but it is unknown how many Jacobians of non-hyperelliptic curves it contains:

• $y^2=x^7+4 x^6+11 x^4+5 x^3+16 x^2+5 x+4$
• $y^2=18 x^8+6 x^7+14 x^6+2 x^5+17 x^4+18 x^3+14 x^2+13 x$
• $y^2=18 x^8+6 x^7+14 x^6+11 x^5+12 x^4+3 x^3+11 x+16$
• $y^2=x^7+5 x^6+14 x^5+7 x^4+11 x^3+18 x^2+16 x+17$
• $y^2=x^8+15 x^7+2 x^6+3 x^5+3 x^4+11 x^3+x^2+14 x+12$
• $y^2=18 x^8+9 x^7+12 x^6+18 x^5+3 x^4+9 x^3+12 x^2+6 x+8$
• $y^2=x^8+18 x^7+7 x^6+11 x^5+x^4+15 x^3+16 x^2+4 x+6$
• $y^2=x^8+15 x^7+9 x^5+13 x^2+17 x+16$
• $y^2=x^8+9 x^7+11 x^6+13 x^5+16 x^4+13 x^3+6 x^2+6 x+3$
• $y^2=x^8+15 x^7+11 x^6+7 x^5+2 x^4+8 x^3+11 x^2+16$
• $y^2=18 x^8+11 x^7+5 x^5+11 x^4+5 x^3+x^2+2 x+18$
• $y^2=x^8+14 x^7+6 x^6+2 x^5+4 x^4+7 x^3+10 x^2+9 x+7$
• $y^2=x^8+3 x^7+13 x^4+16 x^3+7 x^2+10 x+1$
• $y^2=18 x^8+12 x^7+13 x^6+13 x^5+3 x^4+14 x^3+12 x^2+14$
• $y^2=18 x^8+5 x^7+x^6+6 x^5+18 x^4+13 x^3+10 x^2+16 x+18$
• $y^2=x^8+7 x^7+2 x^5+9 x^4+8 x^3+x^2+14 x+17$
• $y^2=18 x^8+4 x^7+5 x^6+x^5+9 x^4+15 x^3+16 x^2+2 x+9$
• $y^2=18 x^8+x^7+7 x^6+16 x^5+6 x^4+9 x^3+2 x^2+14 x+9$
• $y^2=x^8+7 x^7+18 x^6+3 x^4+5 x^3+12 x^2+10 x+1$
• $y^2=18 x^8+16 x^7+7 x^6+10 x^5+10 x^4+14 x^3+13 x^2+14 x+8$
• and

• $y^2=18 x^8+12 x^7+7 x^6+18 x^5+4 x^4+12 x^3+15 x^2+5 x+1$
• $y^2=18 x^8+3 x^6+14 x^5+13 x^4+x^3+17 x^2+18 x+11$
• $y^2=18 x^8+17 x^7+x^6+3 x^5+17 x^4+3 x^3+9 x^2+18 x+12$
• $y^2=18 x^7+15 x^6+5 x^5+5 x^4+18 x^3+2 x^2+9 x+15$
• $y^2=x^8+14 x^6+2 x^5+16 x^4+5 x^3+x^2+12 x+1$
• $y^2=18 x^8+4 x^7+2 x^6+4 x^5+8 x^4+13 x^3+12 x^2+6 x+6$
• $y^2=18 x^8+6 x^7+x^6+7 x^4+10 x^3+18 x^2+14$
• $y^2=x^8+11 x^7+12 x^6+9 x^5+3 x^4+9 x^3+16 x^2+15 x+12$
• $y^2=18 x^8+x^7+3 x^6+16 x^5+2 x^4+x^3+5 x^2+16 x+14$
• $y^2=18 x^8+15 x^7+11 x^6+16 x^5+13 x^4+17 x^3+10 x^2+3 x+1$
• $y^2=18 x^8+6 x^7+11 x^6+13 x^5+14 x^4+10 x^3+13 x^2+5$
• $y^2=18 x^8+5 x^7+7 x^6+9 x^5+11 x^4+3 x^3+2 x^2+14 x+14$
• $y^2=18 x^8+14 x^7+6 x^6+18 x^5+12 x^4+3 x^3+17 x^2+4 x+18$
• $y^2=18 x^8+3 x^7+15 x^6+12 x^5+15 x^4+14 x^3+17 x^2+14 x+11$
• $y^2=18 x^8+18 x^7+14 x^6+4 x^5+13 x^4+6 x^3+15 x^2+6 x+13$

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{19}$.

Endomorphism algebra over $\F_{19}$

The endomorphism algebra of this simple isogeny class is 6.0.1047718739.1.

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
3.19.g_ba_bs	$2$	(not in LMFDB)