Abelian variety isogeny class 2.53.ah_bu over $\F_{53}$

• Label: 2.53.ah_bu
• Base field: $\F_{53}$
• Dimension: $2$
• $p$-rank: $2$
• Ordinary: yes
• Supersingular: no
• Simple: no
• Geometrically simple: no
• Primitive: yes
• Principally polarizable: yes
• Contains a Jacobian: yes

Invariants

Base field:	$\F_{53}$
Dimension:	$2$
L-polynomial:	$( 1 - 12 x + 53 x^{2} )( 1 + 5 x + 53 x^{2} )$
	$1 - 7 x + 46 x^{2} - 371 x^{3} + 2809 x^{4}$
Frobenius angles:	$\pm0.191645762723$, $\pm0.611579124397$
Angle rank:	$2$ (numerical)
Jacobians:	$68$

This isogeny class is not 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

$r$	$1$	$2$	$3$	$4$	$5$
$A(\F_{q^r})$	$2478$	$8013852$	$22091588064$	$62285196403584$	$174921251737584198$

Point counts of the curve

$r$	$1$	$2$	$3$	$4$	$5$	$6$	$7$	$8$	$9$	$10$
$C(\F_{q^r})$	$47$	$2853$	$148388$	$7893713$	$418276267$	$22164475338$	$1174710798847$	$62259703661761$	$3299763515720324$	$174887468776104093$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 68 curves (of which all are hyperelliptic):

• $y^2=27 x^6+52 x^5+x^4+43 x^3+34 x^2+37 x+27$
• $y^2=37 x^6+48 x^5+25 x^4+10 x^3+34 x^2+16 x+39$
• $y^2=16 x^6+52 x^5+27 x^4+42 x^3+8 x^2+7 x+22$
• $y^2=24 x^6+4 x^5+17 x^4+3 x^3+x^2+22 x+28$
• $y^2=42 x^6+18 x^5+16 x^4+11 x^3+19 x^2+8 x+34$
• $y^2=4 x^6+14 x^5+38 x^4+27 x^3+48 x^2+39 x+25$
• $y^2=46 x^6+47 x^5+38 x^4+8 x^3+3 x^2+47 x+44$
• $y^2=43 x^6+51 x^5+36 x^4+29 x^3+48 x^2+44 x+36$
• $y^2=42 x^6+34 x^5+4 x^4+31 x^3+15 x^2+14 x+9$
• $y^2=13 x^6+45 x^4+8 x^3+2 x^2+41 x+27$
• $y^2=50 x^6+32 x^5+45 x^4+16 x^3+21 x^2+27 x+18$
• $y^2=27 x^6+34 x^5+48 x^4+50 x^3+34 x^2+13 x+11$
• $y^2=2 x^6+41 x^5+15 x^4+34 x^3+12 x^2+17 x+18$
• $y^2=26 x^6+23 x^5+5 x^4+30 x^3+41 x^2+42 x+16$
• $y^2=x^6+22 x^5+10 x^4+24 x^3+47 x^2+15 x+39$
• $y^2=14 x^6+49 x^5+33 x^4+8 x^2+20 x+15$
• $y^2=13 x^6+32 x^5+16 x^4+37 x^3+21 x^2+5 x+32$
• $y^2=49 x^6+3 x^5+16 x^4+10 x^3+27 x^2+47 x+20$
• $y^2=32 x^6+50 x^5+3 x^4+17 x^3+x^2+14 x+22$
• $y^2=4 x^6+25 x^5+12 x^4+23 x^3+15 x^2+52$
• and

• $y^2=22 x^6+27 x^5+18 x^4+51 x^3+46 x^2+17 x+45$
• $y^2=23 x^6+21 x^5+39 x^4+40 x^3+52 x^2+45 x+48$
• $y^2=8 x^6+18 x^5+7 x^4+23 x^3+32 x^2+14 x+4$
• $y^2=19 x^6+37 x^5+39 x^4+14 x^3+47 x^2+40 x+21$
• $y^2=48 x^6+28 x^5+4 x^4+6 x^3+49 x^2+15 x+15$
• $y^2=20 x^6+52 x^5+19 x^4+29 x^3+3 x^2+49 x+51$
• $y^2=17 x^6+8 x^5+47 x^4+43 x^3+34 x^2+23 x+14$
• $y^2=20 x^6+44 x^5+42 x^4+49 x^3+42 x^2+49 x+21$
• $y^2=18 x^6+19 x^5+23 x^4+9 x^3+31 x^2+35 x+26$
• $y^2=41 x^6+31 x^5+x^4+22 x^3+26 x^2+48 x+30$
• $y^2=31 x^6+44 x^5+24 x^4+50 x^3+21 x^2+26 x+9$
• $y^2=20 x^6+9 x^5+48 x^4+51 x^3+35 x^2+39 x+42$
• $y^2=2 x^6+29 x^5+21 x^4+10 x^3+7 x^2+35 x+10$
• $y^2=21 x^6+15 x^5+26 x^4+41 x^3+11 x^2+17 x+21$
• $y^2=31 x^6+11 x^5+13 x^4+2 x^3+40 x^2+29 x+21$
• $y^2=10 x^6+38 x^5+30 x^4+3 x^3+6 x^2+36 x+10$
• $y^2=39 x^6+9 x^5+43 x^4+48 x^3+31 x^2+37 x+31$
• $y^2=46 x^6+3 x^4+45 x^3+7 x^2+42 x+16$
• $y^2=13 x^6+17 x^5+24 x^4+5 x^3+44 x^2+16 x+11$
• $y^2=30 x^6+52 x^5+23 x^4+9 x^3+31 x^2+47 x+10$
• $y^2=32 x^6+25 x^5+48 x^4+21 x^3+46 x^2+16 x+2$
• $y^2=23 x^6+40 x^5+9 x^4+9 x^3+21 x^2+50 x+3$
• $y^2=3 x^6+19 x^5+5 x^4+32 x^3+51 x^2+7 x+3$
• $y^2=50 x^6+36 x^5+26 x^4+21 x^3+28 x^2+20 x+2$
• $y^2=31 x^6+42 x^5+50 x^4+8 x^3+11 x^2+40 x+36$
• $y^2=40 x^6+11 x^5+11 x^4+5 x^3+17 x^2+12 x+43$
• $y^2=43 x^6+24 x^5+43 x^3+20 x^2+46 x+33$
• $y^2=26 x^6+14 x^5+46 x^4+37 x^2+4 x+9$
• $y^2=29 x^6+20 x^5+36 x^4+4 x^3+13 x^2+2 x+29$
• $y^2=32 x^6+7 x^5+22 x^4+9 x^3+5 x^2+42 x+28$
• $y^2=7 x^6+49 x^5+48 x^4+8 x^3+6 x^2+30 x+50$
• $y^2=12 x^6+52 x^5+47 x^4+9 x^3+8 x^2+33 x+46$
• $y^2=26 x^6+21 x^5+28 x^4+44 x^3+3 x^2+38 x+19$
• $y^2=27 x^6+3 x^5+17 x^4+15 x^3+44 x^2+26 x+5$
• $y^2=39 x^6+44 x^5+19 x^4+29 x^3+47 x^2+13 x+48$
• $y^2=31 x^6+27 x^5+5 x^4+10 x^3+27 x^2+42 x+4$
• $y^2=8 x^6+21 x^5+33 x^4+41 x^3+43 x^2+31 x+23$
• $y^2=23 x^6+29 x^5+51 x^4+38 x^3+4 x^2+12 x+44$
• $y^2=30 x^6+6 x^5+32 x^4+29 x^3+35 x^2+14 x+21$
• $y^2=12 x^6+42 x^5+42 x^4+34 x^3+8 x^2+38 x$
• $y^2=42 x^6+22 x^5+24 x^4+10 x^3+17 x^2+13 x+33$
• $y^2=26 x^6+37 x^5+27 x^4+18 x^3+11 x^2+27 x+24$
• $y^2=14 x^6+2 x^5+7 x^4+33 x^3+7 x^2+23$
• $y^2=47 x^6+46 x^5+36 x^3+7 x^2+36 x+41$
• $y^2=32 x^6+27 x^5+45 x^4+6 x^3+33 x^2+48 x+23$
• $y^2=12 x^5+15 x^4+14 x^3+3 x^2+17 x+17$
• $y^2=42 x^6+17 x^5+39 x^4+13 x^3+31 x^2+4 x+30$
• $y^2=28 x^6+14 x^5+6 x^4+7 x^3+36 x^2+39 x+50$

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{53}$.

Endomorphism algebra over $\F_{53}$

The isogeny class factors as 1.53.am $\times$ 1.53.f and its endomorphism algebra is a direct product of the endomorphism algebras for each isotypic factor. The endomorphism algebra for each factor is:

• 1.53.am : \(\Q(\sqrt{-17}) \).
• 1.53.f : \(\Q(\sqrt{-187}) \).

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
2.53.ar_gk	$2$	(not in LMFDB)
2.53.h_bu	$2$	(not in LMFDB)
2.53.r_gk	$2$	(not in LMFDB)