Properties

Label 3.5.ad_p_abd
Base field $\F_{5}$
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:  $\F_{5}$
Dimension:  $3$
L-polynomial:  $1 - 3 x + 15 x^{2} - 29 x^{3} + 75 x^{4} - 75 x^{5} + 125 x^{6}$
Frobenius angles:  $\pm0.277336024600$, $\pm0.453376467205$, $\pm0.537962020378$
Angle rank:  $3$ (numerical)
Number field:  6.0.29649159.1
Galois group:  $A_4\times C_2$
Jacobians:  $2$
Isomorphism classes:  5
Cyclic group of points:    yes

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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $109$ $35207$ $2327041$ $228739879$ $30794411969$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $3$ $47$ $147$ $587$ $3153$ $15851$ $77640$ $388451$ $1952841$ $9773327$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 2 curves (of which 0 are hyperelliptic):

  • $x^4+x^3 y+x^3 z+x z^3+2 y^4+y^2 z^2=0$
  • $2 x^4+2 x^3 y+4 x^3 z+4 x^2 y z+4 x^2 z^2+x y^3+x z^3+2 y^4+y^2 z^2=0$

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{5}$.

Endomorphism algebra over $\F_{5}$
The endomorphism algebra of this simple isogeny class is 6.0.29649159.1.

Base change

This is a primitive isogeny class.

Twists

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

TwistExtension degreeCommon base change
3.5.d_p_bd$2$3.25.v_ht_bun