Properties

Label 2.59.a_de
Base field $\F_{59}$
Dimension $2$
$p$-rank $2$
Ordinary yes
Supersingular no
Simple no
Geometrically simple no
Primitive yes
Principally polarizable yes
Contains a Jacobian yes

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Invariants

Base field:  $\F_{59}$
Dimension:  $2$
L-polynomial:  $( 1 - 6 x + 59 x^{2} )( 1 + 6 x + 59 x^{2} )$
  $1 + 82 x^{2} + 3481 x^{4}$
Frobenius angles:  $\pm0.372279067924$, $\pm0.627720932076$
Angle rank:  $1$ (numerical)
Jacobians:  $504$

This isogeny class is not 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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $3564$ $12702096$ $42180228684$ $146836229760000$ $511116752379597804$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $60$ $3646$ $205380$ $12117838$ $714924300$ $42179923726$ $2488651484820$ $146830485960478$ $8662995818654940$ $511116751458554206$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 504 curves (of which all are hyperelliptic):

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{59^{2}}$.

Endomorphism algebra over $\F_{59}$
The isogeny class factors as 1.59.ag $\times$ 1.59.g and its endomorphism algebra is a direct product of the endomorphism algebras for each isotypic factor. The endomorphism algebra for each factor is:
Endomorphism algebra over $\overline{\F}_{59}$
The base change of $A$ to $\F_{59^{2}}$ is 1.3481.de 2 and its endomorphism algebra is $\mathrm{M}_{2}($\(\Q(\sqrt{-2}) \)$)$

Base change

This is a primitive isogeny class.

Twists

Below are some of the twists of this isogeny class.

TwistExtension degreeCommon base change
2.59.am_fy$2$(not in LMFDB)
2.59.m_fy$2$(not in LMFDB)
2.59.a_ade$4$(not in LMFDB)

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

TwistExtension degreeCommon base change
2.59.am_fy$2$(not in LMFDB)
2.59.m_fy$2$(not in LMFDB)
2.59.a_ade$4$(not in LMFDB)
2.59.ag_ax$6$(not in LMFDB)
2.59.g_ax$6$(not in LMFDB)
2.59.au_hs$8$(not in LMFDB)
2.59.u_hs$8$(not in LMFDB)