Properties

Label 2.47.i_ck
Base field $\F_{47}$
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:  $\F_{47}$
Dimension:  $2$
L-polynomial:  $1 + 8 x + 62 x^{2} + 376 x^{3} + 2209 x^{4}$
Frobenius angles:  $\pm0.431493733475$, $\pm0.793592088610$
Angle rank:  $2$ (numerical)
Number field:  4.0.110736.1
Galois group:  $D_{4}$
Jacobians:  $192$

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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $2656$ $5014528$ $10795112800$ $23815638237184$ $52586108536134496$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $56$ $2270$ $103976$ $4880574$ $229288216$ $10779424670$ $506624295688$ $23811283664254$ $1119130470960632$ $52599131534496350$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 192 curves (of which all are hyperelliptic):

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{47}$.

Endomorphism algebra over $\F_{47}$
The endomorphism algebra of this simple isogeny class is 4.0.110736.1.

Base change

This is a primitive isogeny class.

Twists

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

TwistExtension degreeCommon base change
2.47.ai_ck$2$(not in LMFDB)