Abelian variety isogeny class 2.97.o_jj over $\F_{97}$

• Label: 2.97.o_jj
• Base field: $\F_{97}$
• 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:	$\F_{97}$
Dimension:	$2$
L-polynomial:	$( 1 + 7 x + 97 x^{2} )^{2}$
	$1 + 14 x + 243 x^{2} + 1358 x^{3} + 9409 x^{4}$
Frobenius angles:	$\pm0.615645519409$, $\pm0.615645519409$
Angle rank:	$1$ (numerical)
Jacobians:	$102$

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

$r$	$1$	$2$	$3$	$4$	$5$
$A(\F_{q^r})$	$11025$	$91298025$	$829884560400$	$7837043008055625$	$73745500179776000625$

Point counts of the curve

$r$	$1$	$2$	$3$	$4$	$5$	$6$	$7$	$8$	$9$	$10$
$C(\F_{q^r})$	$112$	$9700$	$909286$	$88524868$	$8587699792$	$832969916350$	$80798264223376$	$7837433938752388$	$760231058208646822$	$73742412659209838500$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 102 curves (of which all are hyperelliptic):

• $y^2=69 x^6+56 x^5+86 x^4+66 x^3+65 x^2+33 x+2$
• $y^2=69 x^6+94 x^5+52 x^4+77 x^3+37 x^2+92 x+77$
• $y^2=4 x^6+20 x^5+82 x^4+6 x^3+78 x^2+17 x+25$
• $y^2=82 x^6+63 x^5+86 x^4+88 x^3+3 x^2+59 x+38$
• $y^2=23 x^6+38 x^5+88 x^4+3 x^3+85 x^2+46 x+15$
• $y^2=17 x^6+28 x^5+11 x^4+65 x^3+12 x^2+71 x+76$
• $y^2=85 x^6+39 x^5+77 x^4+59 x^3+76 x^2+51 x+85$
• $y^2=x^6+67 x^5+5 x^4+10 x^3+87 x^2+46 x+51$
• $y^2=x^6+3 x^3+27$
• $y^2=89 x^6+43 x^5+60 x^4+10 x^3+57 x^2+73 x+85$
• $y^2=92 x^6+50 x^5+86 x^4+34 x^3+75 x^2+6 x+57$
• $y^2=86 x^6+50 x^5+25 x^4+61 x^3+93 x^2+54 x+13$
• $y^2=79 x^6+59 x^5+68 x^4+8 x^3+70 x^2+34 x+1$
• $y^2=77 x^6+37 x^5+59 x^4+9 x^3+18 x^2+90 x+46$
• $y^2=91 x^6+34 x^5+77 x^4+33 x^3+34 x^2+42 x+32$
• $y^2=83 x^6+15 x^5+82 x^4+85 x^3+26 x^2+58 x+74$
• $y^2=x^6+37 x^5+22 x^4+38 x^3+36 x^2+70 x+65$
• $y^2=38 x^6+51 x^5+19 x^4+93 x^3+67 x^2+46 x+60$
• $y^2=44 x^6+80 x^5+67 x^4+14 x^3+15 x^2+20 x+43$
• $y^2=11 x^6+37 x^5+11 x^4+88 x^3+64 x^2+42 x+91$
• and

• $y^2=9 x^6+72 x^5+88 x^4+93 x^3+25 x^2+49 x+49$
• $y^2=89 x^6+92 x^5+95 x^4+66 x^3+22 x^2+74 x+75$
• $y^2=69 x^6+80 x^5+92 x^4+14 x^3+74 x^2+5 x+55$
• $y^2=96 x^6+38 x^5+32 x^4+53 x^3+94 x^2+45 x+22$
• $y^2=56 x^6+x^5+84 x^4+63 x^3+29 x^2+75 x+92$
• $y^2=56 x^6+17 x^5+15 x^4+85 x^3+60 x^2+78 x+92$
• $y^2=62 x^6+33 x^5+32 x^4+11 x^3+62 x^2+75 x+25$
• $y^2=56 x^6+38 x^5+5 x^4+59 x^3+x^2+7 x+78$
• $y^2=4 x^6+25 x^5+26 x^4+23 x^3+48 x^2+32 x+43$
• $y^2=2 x^6+91 x^5+62 x^4+29 x^3+54 x^2+15 x+6$
• $y^2=37 x^6+90 x^5+68 x^4+94 x^3+10 x^2+34 x+29$
• $y^2=55 x^6+16 x^5+10 x^4+38 x^3+89 x^2+35 x+94$
• $y^2=60 x^6+15 x^5+61 x^4+84 x^3+50 x^2+87 x+62$
• $y^2=79 x^6+8 x^5+75 x^4+25 x^3+61 x^2+11 x+8$
• $y^2=52 x^6+80 x^5+65 x^4+65 x^3+50 x^2+68 x+34$
• $y^2=90 x^6+38 x^5+56 x^4+84 x^3+56 x^2+38 x+90$
• $y^2=48 x^6+65 x^5+87 x^4+54 x^3+58 x^2+72 x+25$
• $y^2=48 x^6+61 x^5+60 x^4+14 x^3+76 x^2+39 x+46$
• $y^2=90 x^6+44 x^5+9 x^4+40 x^3+40 x^2+3 x+27$
• $y^2=81 x^6+57 x^5+87 x^4+94 x^3+92 x^2+77 x+32$
• $y^2=95 x^6+65 x^5+30 x^4+84 x^3+10 x^2+10 x+64$
• $y^2=33 x^6+42 x^5+16 x^4+6 x^3+33 x^2+90 x+22$
• $y^2=44 x^6+12 x^5+49 x^4+82 x^3+62 x^2+18 x+36$
• $y^2=39 x^6+89 x^5+43 x^4+34 x^3+24 x^2+8 x+82$
• $y^2=6 x^6+69 x^5+57 x^4+74 x^3+4 x^2+38 x+7$
• $y^2=x^6+61 x^3+1$
• $y^2=x^6+95 x^3+89$
• $y^2=25 x^6+21 x^5+x^4+54 x^3+17 x^2+59 x+1$
• $y^2=31 x^6+46 x^5+77 x^4+5 x^3+90 x^2+10 x+73$
• $y^2=6 x^6+66 x^5+42 x^4+50 x^3+25 x^2+8 x+50$
• $y^2=86 x^6+61 x^5+85 x^4+56 x^3+66 x^2+75 x+72$
• $y^2=25 x^6+7 x^5+15 x^4+62 x^3+82 x^2+7 x+72$
• $y^2=20 x^6+41 x^5+33 x^4+65 x^3+33 x^2+41 x+20$
• $y^2=96 x^6+55 x^5+12 x^4+50 x^3+64 x^2+34 x+89$
• $y^2=91 x^6+27 x^5+14 x^4+41 x^3+30 x^2+32 x+41$
• $y^2=95 x^6+29 x^5+77 x^4+13 x^3+78 x^2+56 x+94$
• $y^2=18 x^6+44 x^5+51 x^3+87 x^2+92 x+17$
• $y^2=48 x^6+83 x^5+83 x^4+23 x^3+68 x^2+86 x+69$
• $y^2=35 x^6+18 x^5+44 x^4+68 x^3+31 x^2+89 x+88$
• $y^2=35 x^6+49 x^5+58 x^4+4 x^3+86 x^2+51 x+87$
• $y^2=58 x^6+46 x^5+2 x^4+56 x^3+89 x^2+10 x+65$
• $y^2=59 x^6+92 x^5+87 x^4+12 x^3+83 x^2+79 x+36$
• $y^2=14 x^6+38 x^5+79 x^4+63 x^3+33 x^2+76 x+47$
• $y^2=72 x^6+86 x^5+72 x^4+17 x^3+86 x^2+48 x+48$
• $y^2=93 x^6+57 x^5+82 x^4+20 x^3+80 x^2+66 x+38$
• $y^2=52 x^6+49 x^5+2 x^4+77 x^3+87 x^2+15 x+3$
• $y^2=85 x^6+9 x^5+11 x^4+75 x^3+46 x^2+62 x+42$
• $y^2=80 x^6+66 x^5+30 x^4+66 x^3+40 x^2+85 x+10$
• $y^2=11 x^6+83 x^5+12 x^4+73 x^3+31 x^2+13 x+25$
• $y^2=28 x^6+94 x^5+78 x^4+84 x^3+30 x^2+3 x+34$
• $y^2=25 x^6+35 x^4+4 x^3+27 x^2+91$
• $y^2=79 x^6+76 x^5+42 x^4+44 x^3+80 x^2+67 x+50$
• $y^2=3 x^6+7 x^5+73 x^4+63 x^3+76 x^2+85 x+45$
• $y^2=32 x^6+92 x^5+47 x^4+73 x^3+67 x^2+88 x+7$
• $y^2=75 x^6+62 x^5+8 x^4+12 x^3+74 x^2+55 x+58$
• $y^2=26 x^6+29 x^5+60 x^4+78 x^3+25 x^2+86 x+85$
• $y^2=33 x^6+36 x^5+40 x^4+67 x^3+83 x^2+31 x+23$
• $y^2=54 x^6+28 x^5+60 x^4+76 x^3+76 x^2+5 x+7$
• $y^2=6 x^6+8 x^5+37 x^4+38 x^3+42 x^2+66 x+9$
• $y^2=8 x^6+78 x^5+45 x^4+21 x^3+82 x^2+22 x+27$
• $y^2=84 x^6+87 x^5+60 x^4+70 x^3+34 x^2+69 x+13$
• $y^2=40 x^6+71 x^5+93 x^4+63 x^3+96 x^2+61 x+53$
• $y^2=34 x^6+48 x^5+39 x^4+17 x^3+44 x^2+50 x+96$
• $y^2=61 x^6+26 x^5+70 x^4+67 x^3+61 x^2+57 x+44$
• $y^2=15 x^6+65 x^5+40 x^4+71 x^3+17 x^2+28 x+77$
• $y^2=28 x^6+41 x^5+68 x^4+69 x^3+84 x^2+18 x+15$
• $y^2=4 x^6+66 x^5+74 x^4+58 x^3+68 x^2+49 x+4$
• $y^2=61 x^6+51 x^5+83 x^3+75 x^2+46 x+39$
• $y^2=15 x^6+7 x^5+51 x^4+34 x^3+81 x^2+27 x+43$
• $y^2=39 x^6+56 x^5+63 x^4+37 x^3+75 x^2+87 x+32$
• $y^2=37 x^6+59 x^5+54 x^4+28 x^3+9 x^2+69 x+59$
• $y^2=62 x^6+72 x^5+3 x^4+32 x^3+21 x^2+82 x+21$
• $y^2=62 x^6+67 x^5+52 x^4+4 x^3+39 x^2+68 x+11$
• $y^2=37 x^6+9 x^5+86 x^3+52 x^2+6 x+18$
• $y^2=95 x^6+6 x^5+76 x^4+9 x^3+82 x^2+41 x+50$
• $y^2=49 x^6+38 x^5+24 x^4+11 x^3+31 x^2+57 x+4$
• $y^2=68 x^6+79 x^5+24 x^4+42 x^3+47 x^2+31 x+41$
• $y^2=12 x^6+27 x^5+93 x^4+10 x^3+32 x^2+79 x+64$
• $y^2=33 x^6+90 x^5+11 x^4+4 x^3+56 x^2+3 x+10$
• $y^2=4 x^6+x^5+21 x^4+65 x^3+81 x^2+94 x+11$
• $y^2=78 x^6+89 x^5+73 x^4+77 x^3+79 x^2+92 x+52$
• $y^2=12 x^6+14 x^5+3 x^4+34 x^3+43 x^2+74 x+50$

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{97}$.

Endomorphism algebra over $\F_{97}$

The isogeny class factors as 1.97.h^2 and its endomorphism algebra is $\mathrm{M}_{2}($\(\Q(\sqrt{-339}) \)$)$

Base change

This is a primitive isogeny class.

Twists

Below are some of the twists of this isogeny class.

Twist	Extension degree	Common base change
2.97.ao_jj	$2$	(not in LMFDB)
2.97.a_fp	$2$	(not in LMFDB)
2.97.ah_abw	$3$	(not in LMFDB)