Properties

Label 2.73.g_cw
Base field $\F_{73}$
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:  $\F_{73}$
Dimension:  $2$
L-polynomial:  $( 1 - 6 x + 73 x^{2} )( 1 + 12 x + 73 x^{2} )$
  $1 + 6 x + 74 x^{2} + 438 x^{3} + 5329 x^{4}$
Frobenius angles:  $\pm0.385799748780$, $\pm0.747819727108$
Angle rank:  $2$ (numerical)
Jacobians:  $264$

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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $5848$ $29006080$ $151411041688$ $806721737932800$ $4297312900919415448$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $80$ $5442$ $389216$ $28407454$ $2072920640$ $151333766754$ $11047407356912$ $806460089899966$ $58871587071945008$ $4297625826246964482$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 264 curves (of which all are hyperelliptic):

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{73}$.

Endomorphism algebra over $\F_{73}$
The isogeny class factors as 1.73.ag $\times$ 1.73.m and its endomorphism algebra is a direct product of the endomorphism algebras for each isotypic factor. The endomorphism algebra for each factor is:

Base change

This is a primitive isogeny class.

Twists

Below are some of the twists of this isogeny class.

TwistExtension degreeCommon base change
2.73.as_ik$2$(not in LMFDB)
2.73.ag_cw$2$(not in LMFDB)
2.73.s_ik$2$(not in LMFDB)

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

TwistExtension degreeCommon base change
2.73.as_ik$2$(not in LMFDB)
2.73.ag_cw$2$(not in LMFDB)
2.73.s_ik$2$(not in LMFDB)
2.73.abc_na$4$(not in LMFDB)
2.73.ae_abu$4$(not in LMFDB)
2.73.e_abu$4$(not in LMFDB)
2.73.bc_na$4$(not in LMFDB)