Properties

Label 3.13.e_x_bw
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:  $1 + 4 x + 23 x^{2} + 48 x^{3} + 299 x^{4} + 676 x^{5} + 2197 x^{6}$
Frobenius angles:  $\pm0.319635856556$, $\pm0.632955443005$, $\pm0.740565341687$
Angle rank:  $3$ (numerical)
Number field:  6.0.145156688.1
Galois group:  $S_4\times C_2$
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:  $3$
Slopes:  $[0, 0, 0, 1, 1, 1]$

Point counts

Point counts of the abelian variety

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $3248$ $5820416$ $10272244976$ $23781195382784$ $51181012979742128$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $18$ $200$ $2130$ $29148$ $371258$ $4818248$ $62746730$ $815741372$ $10604672898$ $137858935560$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 142 hyperelliptic curves, but it is unknown how many Jacobians of non-hyperelliptic curves it contains:

  • $y^2=x^7+5 x^6+8 x^5+5 x^4+11 x^3+7 x^2+2 x$
  • $y^2=2 x^7+4 x^6+x^5+9 x^4+8 x^3+2$
  • $y^2=x^7+4 x^6+3 x^5+12 x^4+2 x^3+8 x^2+10 x+1$
  • $y^2=x^7+x^6+12 x^5+12 x^4+5 x^3+5 x^2+10 x+10$
  • $y^2=x^7+6 x^6+3 x^5+7 x^4+6 x^3+12 x^2+8 x+4$
  • $y^2=2 x^7+8 x^6+6 x^5+x^4+4 x^3+11 x^2+7 x+1$
  • $y^2=2 x^7+10 x^6+6 x^5+11 x^4+8 x^3+9 x^2+2$
  • $y^2=x^7+3 x^6+8 x^5+11 x^4+11 x^3+7 x^2+4 x+12$
  • $y^2=x^8+4 x^7+12 x^6+4 x^5+x^4+4 x^3+x^2+8 x+4$
  • $y^2=x^8+4 x^7+8 x^6+2 x^5+10 x^4+12 x^3+6 x^2+12 x+3$
  • $y^2=2 x^8+2 x^7+11 x^5+8 x^4+10 x^3+4 x^2+7 x+7$
  • $y^2=x^8+3 x^7+4 x^6+7 x^5+6 x^4+6 x^3+x^2+5 x+9$
  • $y^2=2 x^8+2 x^7+5 x^6+4 x^5+9 x^4+3 x^3+9 x^2+12 x+9$
  • $y^2=x^8+2 x^6+3 x^5+2 x^4+8 x^3+3 x^2+12 x+2$
  • $y^2=x^8+4 x^7+x^6+5 x^5+8 x^4+4 x^3+4 x^2+4 x+3$
  • $y^2=x^8+3 x^7+2 x^6+10 x^5+12 x^4+4 x^3+10 x^2+8 x$
  • $y^2=x^8+6 x^7+2 x^6+7 x^5+8 x^4+8 x^3+3 x^2+3 x+9$
  • $y^2=x^8+10 x^7+3 x^6+5 x^5+12 x^4+6 x^3+12 x^2+7 x+8$
  • $y^2=2 x^8+12 x^7+7 x^6+12 x^5+9 x^4+6 x^3+3 x^2+4 x+9$
  • $y^2=x^8+6 x^7+4 x^6+8 x^4+5 x^3+2 x+4$
  • and 122 more

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 6.0.145156688.1.

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.ae_x_abw$2$(not in LMFDB)