Properties

Label 3.19.e_z_ce
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:  $\pm0.289886882804$, $\pm0.600381330561$, $\pm0.775715144056$
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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $8864$ $51907584$ $319480179296$ $2232032756170752$ $15185561831785850144$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $24$ $396$ $6792$ $131420$ $2476824$ $47038572$ $893777160$ $16983427004$ $322689552792$ $6131062430796$

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:

  • $y^2=x^7+2 x^6+2 x^5+6 x^4+3 x^3+3 x^2+2 x$
  • $y^2=18 x^7+7 x^6+6 x^5+15 x^4+x^3+9 x^2+x$
  • $y^2=18 x^7+14 x^6+18 x^4+12 x^3+18 x^2+15 x$
  • $y^2=18 x^7+18 x^6+10 x^4+12 x^3+7 x^2+11 x$
  • $y^2=18 x^7+18 x^6+5 x^5+13 x^4+3 x^3+9 x^2+10 x$
  • $y^2=x^7+5 x^6+3 x^5+7 x^4+9 x^3+13 x$
  • $y^2=18 x^7+12 x^6+11 x^5+x^4+4 x^3+2 x^2+9 x$
  • $y^2=x^7+6 x^6+6 x^5+9 x^4+9 x^3+8 x^2+7 x+17$
  • $y^2=18 x^7+5 x^6+2 x^5+15 x^4+18 x^3+9 x^2+7 x+11$
  • $y^2=18 x^7+6 x^6+2 x^5+17 x^4+10 x^3+4 x^2+x+9$
  • $y^2=18 x^7+12 x^6+15 x^5+8 x^4+3 x^3+3 x^2+13 x+7$
  • $y^2=18 x^8+16 x^7+6 x^6+2 x^5+12 x^4+3 x^3+9 x^2+7 x+8$
  • $y^2=x^8+4 x^6+18 x^5+11 x^4+16 x^3+5 x^2+13 x+4$
  • $y^2=x^7+7 x^6+18 x^5+x^4+17 x^2+4 x+17$
  • $y^2=x^8+9 x^7+7 x^6+15 x^5+8 x^4+11 x^3+6 x^2+8 x+16$
  • $y^2=x^8+4 x^7+15 x^6+7 x^5+13 x^4+2 x^3+11 x^2+8 x+17$
  • $y^2=18 x^8+17 x^7+6 x^6+18 x^5+16 x^4+7 x^3+13 x^2+7 x+15$
  • $y^2=18 x^8+15 x^7+15 x^6+7 x^5+11 x^4+17 x^3+17 x^2+8 x+7$
  • $y^2=18 x^8+7 x^7+7 x^6+6 x^5+13 x^4+14 x^3+10 x^2+9 x+11$
  • $y^2=x^8+x^7+6 x^6+16 x^5+4 x^4+11 x^3+x^2+12 x+14$
  • 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.ae_z_ace$2$(not in LMFDB)