Properties

Label 3.23.ac_cj_adc
Base field $\F_{23}$
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:  $\F_{23}$
Dimension:  $3$
L-polynomial:  $1 - 2 x + 61 x^{2} - 80 x^{3} + 1403 x^{4} - 1058 x^{5} + 12167 x^{6}$
Frobenius angles:  $\pm0.387462988572$, $\pm0.454984511393$, $\pm0.589890629147$
Angle rank:  $3$ (numerical)
Number field:  6.0.12317631408.1
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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $12492$ $184531824$ $1818707769108$ $21796783903021824$ $266500065319650548172$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $22$ $648$ $12286$ $278332$ $6433082$ $148036248$ $3404887970$ $78311635196$ $1801151719390$ $41426489105208$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 40 hyperelliptic curves, but it is unknown how many Jacobians of non-hyperelliptic curves it contains:

  • $y^2=x^8+13 x^7+19 x^6+11 x^5+5 x^4+19 x^3+8 x^2+14 x+6$
  • $y^2=22 x^8+20 x^7+21 x^6+8 x^5+17 x^4+17 x^3+9 x^2+22$
  • $y^2=22 x^8+x^7+8 x^6+6 x^5+7 x^4+8 x^3+21 x^2+22 x$
  • $y^2=22 x^8+17 x^7+15 x^6+5 x^5+21 x^4+21 x^3+6 x^2+17 x+16$
  • $y^2=x^8+15 x^7+20 x^6+18 x^5+x^4+9 x^3+18 x^2+8 x+1$
  • $y^2=22 x^8+14 x^7+15 x^6+14 x^5+4 x^4+9 x^3+19 x^2+5 x+22$
  • $y^2=x^8+14 x^7+20 x^6+15 x^5+11 x^4+20 x^3+20 x^2+8 x+12$
  • $y^2=x^8+11 x^7+x^6+18 x^5+x^4+6 x^3+22 x^2+3 x+11$
  • $y^2=22 x^8+22 x^7+3 x^6+6 x^5+2 x^4+4 x^3+20 x^2+17$
  • $y^2=22 x^8+8 x^7+18 x^6+11 x^5+3 x^4+14 x^3+2 x^2+16 x+17$
  • $y^2=22 x^8+10 x^7+14 x^6+20 x^5+6 x^4+x^3+8 x^2+15 x+22$
  • $y^2=x^8+10 x^7+2 x^5+4 x^4+6 x^3+17 x^2+19 x+22$
  • $y^2=22 x^8+9 x^7+4 x^6+8 x^5+11 x^4+19 x^3+19 x^2+15 x+18$
  • $y^2=22 x^8+10 x^7+x^6+7 x^5+12 x^4+22 x^3+8 x^2+7 x+19$
  • $y^2=22 x^8+4 x^7+14 x^6+19 x^5+4 x^4+17 x^3+14 x^2+11 x+2$
  • $y^2=x^8+13 x^7+22 x^6+19 x^5+19 x^4+3 x^3+6 x^2+10 x+17$
  • $y^2=22 x^8+17 x^7+19 x^6+9 x^5+4 x^4+17 x^3+20 x^2+14 x+10$
  • $y^2=x^8+7 x^7+17 x^6+19 x^5+5 x^4+19 x^3+15 x^2+9 x+13$
  • $y^2=x^8+9 x^7+5 x^6+22 x^5+16 x^4+x^3+7 x^2+18 x+3$
  • $y^2=x^8+18 x^7+16 x^6+11 x^5+9 x^4+15 x^3+4 x^2+2 x+10$
  • and 20 more

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{23}$.

Endomorphism algebra over $\F_{23}$
The endomorphism algebra of this simple isogeny class is 6.0.12317631408.1.

Base change

This is a primitive isogeny class.

Twists

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

TwistExtension degreeCommon base change
3.23.c_cj_dc$2$(not in LMFDB)