Properties

Label 3.13.ad_d_bi
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

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Invariants

Base field:  $\F_{13}$
Dimension:  $3$
L-polynomial:  $1 - 3 x + 3 x^{2} + 34 x^{3} + 39 x^{4} - 507 x^{5} + 2197 x^{6}$
Frobenius angles:  $\pm0.196263666190$, $\pm0.355929670173$, $\pm0.815779813676$
Angle rank:  $3$ (numerical)
Number field:  6.0.487450224.1
Galois group:  $S_4\times C_2$
Cyclic group of points:    no
Non-cyclic primes:   $2, 3$

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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $1764$ $4791024$ $11112945984$ $23770838052864$ $51061275145729044$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $11$ $167$ $2300$ $29135$ $370391$ $4830692$ $62744483$ $815773631$ $10604609852$ $137856963647$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 43 hyperelliptic curves, but it is unknown how many Jacobians of non-hyperelliptic curves it contains:

  • $y^2=x^7+x^6+7 x^5+x^4+2 x^3+2 x^2+12 x+2$
  • $y^2=x^7+2 x^6+9 x^5+3 x^4+2 x^3+10 x^2+6 x+12$
  • $y^2=x^7+2 x^6+8 x^5+12 x^4+3 x^3+2 x^2+10 x+12$
  • $y^2=x^7+x^6+3 x^5+10 x^3+7 x^2+9 x+11$
  • $y^2=x^7+9 x^6+8 x^5+5 x^4+11 x^3+2 x^2+8 x+10$
  • $y^2=x^7+11 x^6+11 x^5+12 x^4+9 x^3+3 x^2+9 x+7$
  • $y^2=x^7+5 x^6+11 x^5+8 x^4+8 x^3+1$
  • $y^2=x^7+12 x^6+5 x^5+12 x^2+4 x+4$
  • $y^2=x^7+5 x^6+10 x^5+3 x^4+8 x^2+11 x+11$
  • $y^2=x^7+3 x^6+4 x^5+3 x^4+7 x^3+12 x^2+4 x+10$
  • $y^2=x^7+2 x^6+2 x^5+2 x^4+4 x^3+x^2+3 x+6$
  • $y^2=x^7+5 x^6+12 x^5+11 x^4+2 x^3+9 x+5$
  • $y^2=x^7+3 x^6+2 x^5+7 x^4+5 x^3+12 x+3$
  • $y^2=x^7+x^6+12 x^5+11 x^4+8 x^3+5 x^2+4 x+5$
  • $y^2=x^7+11 x^6+3 x^5+2 x^4+3 x^3+7 x^2+6 x+8$
  • $y^2=x^7+11 x^6+x^5+2 x^4+2 x^3+12 x^2+8 x+10$
  • $y^2=x^7+7 x^6+7 x^5+12 x^4+6 x^3+2 x^2+8 x+3$
  • $y^2=x^7+10 x^6+5 x^4+12 x^3+x^2+10 x+5$
  • $y^2=x^7+x^6+5 x^4+8 x^3+12 x+6$
  • $y^2=x^7+4 x^6+2 x^5+7 x^4+3 x^3+9 x^2+8 x+4$
  • and 23 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 6.0.487450224.1.

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.d_d_abi$2$(not in LMFDB)