Properties

Label 3.19.ae_z_ace
Base field $\F_{19}$
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:  $\F_{19}$
Dimension:  $3$
L-polynomial:  $1 - 4 x + 25 x^{2} - 56 x^{3} + 475 x^{4} - 1444 x^{5} + 6859 x^{6}$
Frobenius angles:  $\pm0.224284855944$, $\pm0.399618669439$, $\pm0.710113117196$
Angle rank:  $3$ (numerical)
Number field:  6.0.2065079232.2
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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $5856$ $51907584$ $325876790304$ $2232032756170752$ $15176684049826383456$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $16$ $396$ $6928$ $131420$ $2475376$ $47038572$ $893966320$ $16983427004$ $322685842768$ $6131062430796$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 299 hyperelliptic curves, but it is unknown how many Jacobians of non-hyperelliptic curves it contains:

  • $y^2=18 x^7+17 x^6+17 x^5+13 x^4+16 x^3+16 x^2+17 x$
  • $y^2=x^7+12 x^6+13 x^5+4 x^4+18 x^3+10 x^2+18 x$
  • $y^2=x^7+5 x^6+x^4+7 x^3+x^2+4 x$
  • $y^2=x^7+x^6+9 x^4+7 x^3+12 x^2+8 x$
  • $y^2=x^7+x^6+14 x^5+6 x^4+16 x^3+10 x^2+9 x$
  • $y^2=18 x^7+14 x^6+16 x^5+12 x^4+10 x^3+6 x$
  • $y^2=x^7+7 x^6+8 x^5+18 x^4+15 x^3+17 x^2+10 x$
  • $y^2=18 x^7+13 x^6+13 x^5+10 x^4+10 x^3+11 x^2+12 x+2$
  • $y^2=x^7+14 x^6+17 x^5+4 x^4+x^3+10 x^2+12 x+8$
  • $y^2=x^7+13 x^6+17 x^5+2 x^4+9 x^3+15 x^2+18 x+10$
  • $y^2=x^7+7 x^6+4 x^5+11 x^4+16 x^3+16 x^2+6 x+12$
  • $y^2=x^8+3 x^7+13 x^6+17 x^5+7 x^4+16 x^3+10 x^2+12 x+11$
  • $y^2=18 x^8+15 x^6+x^5+8 x^4+3 x^3+14 x^2+6 x+15$
  • $y^2=18 x^7+12 x^6+x^5+18 x^4+2 x^2+15 x+2$
  • $y^2=18 x^8+10 x^7+12 x^6+4 x^5+11 x^4+8 x^3+13 x^2+11 x+3$
  • $y^2=18 x^8+15 x^7+4 x^6+12 x^5+6 x^4+17 x^3+8 x^2+11 x+2$
  • $y^2=x^8+2 x^7+13 x^6+x^5+3 x^4+12 x^3+6 x^2+12 x+4$
  • $y^2=x^8+4 x^7+4 x^6+12 x^5+8 x^4+2 x^3+2 x^2+11 x+12$
  • $y^2=x^8+12 x^7+12 x^6+13 x^5+6 x^4+5 x^3+9 x^2+10 x+8$
  • $y^2=18 x^8+18 x^7+13 x^6+3 x^5+15 x^4+8 x^3+18 x^2+7 x+5$
  • and 279 more

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{19}$.

Endomorphism algebra over $\F_{19}$
The endomorphism algebra of this simple isogeny class is 6.0.2065079232.2.

Base change

This is a primitive isogeny class.

Twists

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

TwistExtension degreeCommon base change
3.19.e_z_ce$2$(not in LMFDB)