Abelian variety isogeny class 2.47.h_dy over $\F_{47}$

• Label: 2.47.h_dy
• Base field: $\F_{47}$
• 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:	$\F_{47}$
Dimension:	$2$
L-polynomial:	$1 + 7 x + 102 x^{2} + 329 x^{3} + 2209 x^{4}$
Frobenius angles:	$\pm0.533455305518$, $\pm0.632943641186$
Angle rank:	$2$ (numerical)
Number field:	4.0.2109989.3
Galois group:	$D_{4}$
Jacobians:	$48$
Isomorphism classes:	48
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:	$2$
Slopes:	$[0, 0, 1, 1]$

Point counts

Point counts of the abelian variety

$r$	$1$	$2$	$3$	$4$	$5$
$A(\F_{q^r})$	$2648$	$5232448$	$10695240224$	$23793761947904$	$52608654811172968$

Point counts of the curve

$r$	$1$	$2$	$3$	$4$	$5$	$6$	$7$	$8$	$9$	$10$
$C(\F_{q^r})$	$55$	$2365$	$103012$	$4876089$	$229386525$	$10779215950$	$506621857195$	$23811289719249$	$1119130488638764$	$52599132229460325$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 48 curves (of which all are hyperelliptic):

• $y^2=16 x^6+17 x^5+2 x^4+17 x^3+42 x^2+36 x+1$
• $y^2=34 x^6+3 x^5+34 x^4+25 x^3+11 x^2+17 x+35$
• $y^2=46 x^6+13 x^5+44 x^4+27 x^3+11 x^2+5 x+42$
• $y^2=4 x^6+35 x^5+34 x^4+16 x^3+24 x^2+27 x+42$
• $y^2=8 x^6+8 x^5+33 x^4+18 x^3+41 x^2+43 x+34$
• $y^2=45 x^6+29 x^5+15 x^4+44 x^3+26 x^2+41 x+1$
• $y^2=5 x^6+39 x^5+32 x^4+41 x^3+30 x^2+37 x+5$
• $y^2=24 x^6+36 x^5+33 x^4+44 x^3+23 x^2+18 x+13$
• $y^2=12 x^6+24 x^5+19 x^4+41 x^3+44 x^2+x+21$
• $y^2=34 x^6+35 x^5+17 x^4+14 x^3+7 x^2+16 x+14$
• $y^2=7 x^6+31 x^5+21 x^4+39 x^3+34 x^2+46 x+34$
• $y^2=21 x^6+9 x^5+23 x^4+20 x^3+10 x^2+6 x+4$
• $y^2=33 x^6+31 x^5+17 x^4+30 x^3+36 x^2+15 x+3$
• $y^2=32 x^6+33 x^5+39 x^4+18 x^3+17 x^2+3 x+18$
• $y^2=37 x^6+2 x^5+18 x^3+30 x^2+42 x+42$
• $y^2=39 x^6+17 x^5+30 x^4+40 x^3+36 x^2+36 x+35$
• $y^2=14 x^6+31 x^5+29 x^4+15 x^3+38 x^2+38 x+3$
• $y^2=12 x^6+27 x^5+28 x^4+36 x^3+40 x^2+40 x+33$
• $y^2=x^5+6 x^4+10 x^3+25 x^2+12 x+20$
• $y^2=6 x^6+42 x^5+19 x^4+15 x^3+34 x^2+23 x+17$
• and

• $y^2=12 x^6+45 x^5+35 x^4+20 x^3+36 x^2+27 x+46$
• $y^2=9 x^6+5 x^5+32 x^4+43 x^3+37 x^2+38 x+38$
• $y^2=28 x^6+14 x^5+27 x^4+10 x^3+19 x^2+40 x+43$
• $y^2=38 x^6+5 x^5+6 x^4+37 x^3+19 x^2+44 x+18$
• $y^2=37 x^6+9 x^5+33 x^4+x^3+5 x^2+14 x$
• $y^2=10 x^6+24 x^5+13 x^4+x^3+46 x^2+33 x+14$
• $y^2=4 x^6+18 x^5+9 x^4+x^3+26 x^2+29 x+2$
• $y^2=28 x^6+36 x^5+34 x^4+25 x^3+10 x^2+15 x$
• $y^2=43 x^5+46 x^4+6 x^3+29 x^2+17 x+29$
• $y^2=44 x^6+10 x^5+22 x^4+31 x^3+27 x^2+27 x+27$
• $y^2=x^6+37 x^5+8 x^4+9 x^3+23 x^2+27 x+36$
• $y^2=37 x^6+43 x^5+45 x^4+9 x^3+35 x^2+22 x+7$
• $y^2=17 x^6+36 x^5+41 x^4+13 x^3+46 x^2+37 x+32$
• $y^2=9 x^6+14 x^5+39 x^4+29 x^3+23 x^2+37 x+15$
• $y^2=15 x^6+27 x^5+21 x^4+20 x^3+45 x^2+3 x+12$
• $y^2=35 x^6+38 x^5+37 x^4+26 x^3+29 x^2+2 x+20$
• $y^2=29 x^6+35 x^5+x^4+32 x^3+x^2+2 x+15$
• $y^2=34 x^6+13 x^5+24 x^4+18 x^3+33 x^2+41 x+1$
• $y^2=6 x^6+31 x^5+38 x^4+3 x^3+9 x^2+15 x+16$
• $y^2=36 x^6+37 x^5+39 x^4+35 x^3+27 x^2+38 x+28$
• $y^2=37 x^6+17 x^5+4 x^4+37 x^3+9 x^2+32 x+23$
• $y^2=14 x^5+21 x^3+44 x^2+11 x+21$
• $y^2=4 x^6+30 x^5+31 x^4+10 x^3+7 x^2+2 x+10$
• $y^2=3 x^6+12 x^5+44 x^4+22 x^3+31 x^2+13 x+19$
• $y^2=26 x^6+x^5+9 x^4+37 x^3+37 x^2+27 x+20$
• $y^2=42 x^6+13 x^5+28 x^4+6 x^3+27 x^2+6 x+23$
• $y^2=28 x^6+39 x^5+2 x^4+6 x^3+38 x^2+32 x+22$
• $y^2=8 x^5+33 x^4+33 x^3+39 x^2+16 x+3$

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{47}$.

Endomorphism algebra over $\F_{47}$

The endomorphism algebra of this simple isogeny class is 4.0.2109989.3.

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
2.47.ah_dy	$2$	(not in LMFDB)