Properties

Label 2.47.d_dk
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:  $1 + 3 x + 88 x^{2} + 141 x^{3} + 2209 x^{4}$
Frobenius angles:  $\pm0.468088878149$, $\pm0.603307164017$
Angle rank:  $2$ (numerical)
Number field:  4.0.34229448.2
Galois group:  $D_{4}$
Jacobians:  $42$
Isomorphism classes:  42
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:  $2$
Slopes:  $[0, 0, 1, 1]$

Point counts

Point counts of the abelian variety

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $2442$ $5260068$ $10743813432$ $23785648771104$ $52602731365496862$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $51$ $2377$ $103482$ $4874425$ $229360701$ $10779310186$ $506622951627$ $23811288220945$ $1119130435242342$ $52599132026472337$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 42 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 4.0.34229448.2.

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.ad_dk$2$(not in LMFDB)