Properties

Label 3.19.i_bt_iq
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:  $1 + 8 x + 45 x^{2} + 224 x^{3} + 855 x^{4} + 2888 x^{5} + 6859 x^{6}$
Frobenius angles:  $\pm0.378303266129$, $\pm0.610647349174$, $\pm0.899006779615$
Angle rank:  $3$ (numerical)
Number field:  6.0.163892992.1
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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $10880$ $50483200$ $327577988480$ $2207018883481600$ $15181662149917366400$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $28$ $388$ $6964$ $129948$ $2476188$ $47034532$ $893823476$ $16984281276$ $322686957724$ $6131062684228$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 449 hyperelliptic curves, but it is unknown how many Jacobians of non-hyperelliptic curves it contains:

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 6.0.163892992.1.

Base change

This is a primitive isogeny class.

Twists

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

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