Properties

Label 3.13.ae_bh_adi
Base field $\F_{13}$
Dimension $3$
$p$-rank $3$
Ordinary yes
Supersingular no
Simple yes
Geometrically simple yes
Primitive yes
Principally polarizable yes
Contains a Jacobian yes

Related objects

Downloads

Learn more

Invariants

Base field:  $\F_{13}$
Dimension:  $3$
L-polynomial:  $1 - 4 x + 33 x^{2} - 86 x^{3} + 429 x^{4} - 676 x^{5} + 2197 x^{6}$
Frobenius angles:  $\pm0.288974508800$, $\pm0.419388285862$, $\pm0.600764434597$
Angle rank:  $3$ (numerical)
Number field:  6.0.23517473472.1
Galois group:  $S_4\times C_2$
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:  $3$
Slopes:  $[0, 0, 0, 1, 1, 1]$

Point counts

Point counts of the abelian variety

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $1894$ $6488844$ $10963057246$ $23313352321584$ $51222455194072534$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $10$ $220$ $2272$ $28580$ $371560$ $4822672$ $62735578$ $815770844$ $10604466490$ $137857838920$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 14 hyperelliptic curves, but it is unknown how many Jacobians of non-hyperelliptic curves it contains:

  • $y^2=2 x^8+6 x^7+12 x^6+8 x^5+11 x^4+10 x^3+3 x^2+3 x+4$
  • $y^2=2 x^8+8 x^7+9 x^5+6 x^4+4 x^3+11 x^2+9 x+6$
  • $y^2=2 x^8+8 x^7+2 x^6+9 x^5+11 x^4+6 x^3+12 x^2+5 x+8$
  • $y^2=2 x^8+5 x^7+6 x^6+3 x^5+2 x^4+5 x^3+3 x+2$
  • $y^2=2 x^8+7 x^7+x^6+7 x^5+x^4+10 x^2+8 x+11$
  • $y^2=2 x^8+8 x^7+11 x^6+12 x^5+10 x^4+x^3+2 x^2+3 x+4$
  • $y^2=x^8+12 x^7+4 x^6+5 x^5+6 x^4+6 x^3+3 x^2+5 x+7$
  • $y^2=2 x^8+11 x^7+10 x^6+11 x^5+11 x^4+2 x^3+6 x^2+9 x+9$
  • $y^2=2 x^8+2 x^7+x^6+7 x^5+3 x^4+7 x^3+7 x^2+5 x+6$
  • $y^2=2 x^8+10 x^7+10 x^6+11 x^5+9 x^4+10 x^3+11 x^2+10 x+8$
  • $y^2=2 x^8+7 x^7+7 x^6+4 x^5+6 x^4+x^3+6 x^2+3 x+2$
  • $y^2=2 x^8+10 x^7+10 x^6+4 x^5+6 x^4+5 x^3+5 x^2+x+3$
  • $y^2=x^8+x^7+10 x^6+9 x^5+2 x^4+6 x^3+2 x+2$
  • $y^2=x^8+10 x^7+x^6+5 x^5+7 x^3+2 x^2+10 x+11$

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{13}$.

Endomorphism algebra over $\F_{13}$
The endomorphism algebra of this simple isogeny class is 6.0.23517473472.1.

Base change

This is a primitive isogeny class.

Twists

Below is a list of all twists of this isogeny class.

TwistExtension degreeCommon base change
3.13.e_bh_di$2$(not in LMFDB)