Properties

Label 2.47.an_dt
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:  $1 - 13 x + 97 x^{2} - 611 x^{3} + 2209 x^{4}$
Frobenius angles:  $\pm0.118953268719$, $\pm0.494543759347$
Angle rank:  $2$ (numerical)
Number field:  4.0.116072141.1
Galois group:  $D_{4}$
Jacobians:  $62$
Isomorphism classes:  62
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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $1683$ $4932873$ $10753769169$ $23788153567629$ $52600575710274768$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $35$ $2235$ $103577$ $4874939$ $229351300$ $10779551055$ $506624522215$ $23811286640899$ $1119130528090649$ $52599133067549550$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 62 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 4.0.116072141.1.

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.n_dt$2$(not in LMFDB)