Properties

Label 2.193.abx_blt
Base field $\F_{193}$
Dimension $2$
$p$-rank $2$
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:  $\F_{193}$
Dimension:  $2$
L-polynomial:  $1 - 49 x + 981 x^{2} - 9457 x^{3} + 37249 x^{4}$
Frobenius angles:  $\pm0.0853826055493$, $\pm0.205199049154$
Angle rank:  $2$ (numerical)
Number field:  4.0.6666597.1
Galois group:  $D_{4}$
Jacobians:  $20$

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:  $2$
Slopes:  $[0, 0, 1, 1]$

Point counts

Point counts of the abelian variety

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $28725$ $1371245325$ $51669514082925$ $1925161005311143125$ $71709118018795601538000$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $145$ $36811$ $7187245$ $1387515427$ $267785980150$ $51682551853939$ $9974730425992645$ $1925122953234269923$ $371548729907983826305$ $71708904873230579421886$

Jacobians and polarizations

This isogeny class contains the Jacobians of 20 curves (of which all are hyperelliptic), and hence is principally polarizable:

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{193}$.

Endomorphism algebra over $\F_{193}$
The endomorphism algebra of this simple isogeny class is 4.0.6666597.1.

Base change

This is a primitive isogeny class.

Twists

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

TwistExtension degreeCommon base change
2.193.bx_blt$2$(not in LMFDB)