Abelian variety isogeny class 2.37.ac_cq over $\F_{37}$

• Label: 2.37.ac_cq
• Base field: $\F_{37}$
• 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:	$\F_{37}$
Dimension:	$2$
L-polynomial:	$1 - 2 x + 68 x^{2} - 74 x^{3} + 1369 x^{4}$
Frobenius angles:	$\pm0.403120450854$, $\pm0.543193371495$
Angle rank:	$2$ (numerical)
Number field:	4.0.15344448.1
Galois group:	$D_{4}$
Jacobians:	$32$
Isomorphism classes:	32
Cyclic group of points:	yes

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

$r$	$1$	$2$	$3$	$4$	$5$
$A(\F_{q^r})$	$1362$	$2062068$	$2574780642$	$3506315682384$	$4808155652882562$

Point counts of the curve

$r$	$1$	$2$	$3$	$4$	$5$	$6$	$7$	$8$	$9$	$10$
$C(\F_{q^r})$	$36$	$1502$	$50832$	$1870870$	$69337776$	$2565770366$	$94931898132$	$3512480556190$	$129961752287652$	$4808584263826862$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 32 curves (of which all are hyperelliptic):

• $y^2=35 x^5+13 x^4+27 x^3+29 x^2+15$
• $y^2=4 x^6+29 x^5+23 x^4+18 x^3+30 x^2+3 x+22$
• $y^2=25 x^6+26 x^5+26 x^4+14 x^3+26 x^2+26 x+6$
• $y^2=16 x^6+34 x^5+20 x^4+32 x^3+10 x^2+11 x+15$
• $y^2=9 x^6+25 x^5+36 x^4+34 x^3+31 x^2+8 x+5$
• $y^2=16 x^6+2 x^4+9 x^3+32 x^2+21 x+25$
• $y^2=28 x^6+20 x^4+35 x^3+15 x^2+3 x+4$
• $y^2=8 x^6+19 x^5+19 x^4+6 x^3+14 x^2+26 x+19$
• $y^2=25 x^6+26 x^5+12 x^4+22 x^3+28 x^2+32 x+27$
• $y^2=28 x^6+25 x^5+36 x^4+29 x^3+22 x^2+x+30$
• $y^2=22 x^6+14 x^5+25 x^4+21 x^3+16 x^2+32 x+34$
• $y^2=36 x^6+33 x^5+23 x^4+11 x^2+10 x+36$
• $y^2=11 x^6+13 x^5+28 x^4+9 x^3+33 x^2+4 x+15$
• $y^2=25 x^6+3 x^5+32 x^4+35 x^3+26 x^2+18 x+22$
• $y^2=29 x^6+24 x^5+13 x^4+28 x^3+20 x^2+24 x+16$
• $y^2=26 x^5+15 x^4+18 x^3+10 x^2+24 x+33$
• $y^2=8 x^6+11 x^5+8 x^4+23 x^3+35 x+22$
• $y^2=32 x^6+27 x^5+19 x^4+9 x^3+10 x^2+34 x+27$
• $y^2=22 x^6+24 x^5+7 x^4+30 x^3+27 x^2+30 x+7$
• $y^2=16 x^6+12 x^5+23 x^4+11 x^3+33 x^2+27 x+33$
• and

• $y^2=32 x^6+28 x^5+31 x^4+23 x^3+32 x^2+11 x+1$
• $y^2=4 x^6+9 x^5+4 x^4+14 x^3+20 x^2+2 x+11$
• $y^2=22 x^6+20 x^5+34 x^4+21 x^3+11 x^2+12 x+35$
• $y^2=5 x^6+7 x^5+16 x^4+29 x^3+35 x^2+32 x+36$
• $y^2=27 x^6+20 x^5+22 x^4+3 x^3+7 x^2+6 x+9$
• $y^2=19 x^6+20 x^5+6 x^4+22 x^3+26 x^2+25 x+2$
• $y^2=35 x^6+8 x^5+x^4+33 x^3+21 x^2+20 x+13$
• $y^2=15 x^6+11 x^5+26 x^4+9 x^3+11 x^2+30 x+5$
• $y^2=28 x^6+31 x^5+14 x^4+5 x^3+22 x^2+8 x+10$
• $y^2=7 x^6+21 x^5+6 x^4+22 x^3+19 x^2+25 x+6$
• $y^2=28 x^6+32 x^5+25 x^4+22 x^3+36 x^2+15 x+29$
• $y^2=36 x^6+11 x^5+10 x^4+36 x^3+31 x+17$

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{37}$.

Endomorphism algebra over $\F_{37}$

The endomorphism algebra of this simple isogeny class is 4.0.15344448.1.

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
2.37.c_cq	$2$	(not in LMFDB)