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

• Label: 2.47.m_dr
• Base field: $\F_{47}$
• Dimension: $2$
• $p$-rank: $2$
• Ordinary: yes
• Supersingular: no
• Simple: yes
• Geometrically simple: no
• Primitive: yes
• Principally polarizable: yes
• Contains a Jacobian: yes

Invariants

Base field:	$\F_{47}$
Dimension:	$2$
L-polynomial:	$1 + 12 x + 95 x^{2} + 564 x^{3} + 2209 x^{4}$
Frobenius angles:	$\pm0.501948231280$, $\pm0.835281564613$
Angle rank:	$1$ (numerical)
Number field:	\(\Q(\sqrt{-3}, \sqrt{35})\)
Galois group:	$C_2^2$
Jacobians:	$44$
Cyclic group of points:	yes

This isogeny class is simple but not 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

$r$	$1$	$2$	$3$	$4$	$5$
$A(\F_{q^r})$	$2881$	$4981249$	$10779422836$	$23800054053321$	$52593438492792961$

Point counts of the curve

$r$	$1$	$2$	$3$	$4$	$5$	$6$	$7$	$8$	$9$	$10$
$C(\F_{q^r})$	$60$	$2256$	$103824$	$4877380$	$229320180$	$10779630342$	$506621797308$	$23811282201604$	$1119130473102768$	$52599132489043536$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 44 curves (of which all are hyperelliptic):

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

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

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{47^{6}}$.

Endomorphism algebra over $\F_{47}$

The endomorphism algebra of this simple isogeny class is \(\Q(\sqrt{-3}, \sqrt{35})\).

Endomorphism algebra over $\overline{\F}_{47}$

The base change of $A$ to $\F_{47^{6}}$ is 1.10779215329.luza^2 and its endomorphism algebra is $\mathrm{M}_{2}($\(\Q(\sqrt{-105}) \)$)$

Remainder of endomorphism lattice by field

• Endomorphism algebra over $\F_{47^{2}}$

  The base change of $A$ to $\F_{47^{2}}$ is the simple isogeny class 2.2209.bu_adp and its endomorphism algebra is \(\Q(\sqrt{-3}, \sqrt{35})\).

• Endomorphism algebra over $\F_{47^{3}}$

  The base change of $A$ to $\F_{47^{3}}$ is the simple isogeny class 2.103823.a_luza and its endomorphism algebra is \(\Q(\sqrt{-3}, \sqrt{35})\).

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
2.47.am_dr	$2$	(not in LMFDB)
2.47.am_dr	$3$	(not in LMFDB)
2.47.a_abu	$3$	(not in LMFDB)