Properties

Label 2.73.e_di
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:  $( 1 - 6 x + 73 x^{2} )( 1 + 10 x + 73 x^{2} )$
  $1 + 4 x + 86 x^{2} + 292 x^{3} + 5329 x^{4}$
Frobenius angles:  $\pm0.385799748780$, $\pm0.698986253580$
Angle rank:  $2$ (numerical)
Jacobians:  $470$
Cyclic group of points:    no
Non-cyclic primes:   $2$

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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $5712$ $29245440$ $151297908048$ $806661763891200$ $4297444738478766672$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $78$ $5486$ $388926$ $28405342$ $2072984238$ $151333160654$ $11047408711326$ $806460130441918$ $58871586454230798$ $4297625830107235886$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 470 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.k 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.aq_hy$2$(not in LMFDB)
2.73.ae_di$2$(not in LMFDB)
2.73.q_hy$2$(not in LMFDB)
2.73.ax_jo$3$(not in LMFDB)
2.73.b_ea$3$(not in LMFDB)

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

TwistExtension degreeCommon base change
2.73.aq_hy$2$(not in LMFDB)
2.73.ae_di$2$(not in LMFDB)
2.73.q_hy$2$(not in LMFDB)
2.73.ax_jo$3$(not in LMFDB)
2.73.b_ea$3$(not in LMFDB)
2.73.aba_lu$4$(not in LMFDB)
2.73.ag_ao$4$(not in LMFDB)
2.73.g_ao$4$(not in LMFDB)
2.73.ba_lu$4$(not in LMFDB)
2.73.an_hg$6$(not in LMFDB)
2.73.al_bs$6$(not in LMFDB)
2.73.ab_ea$6$(not in LMFDB)
2.73.l_bs$6$(not in LMFDB)
2.73.n_hg$6$(not in LMFDB)
2.73.x_jo$6$(not in LMFDB)
2.73.abh_qc$12$(not in LMFDB)
2.73.ax_jy$12$(not in LMFDB)
2.73.aj_bi$12$(not in LMFDB)
2.73.ab_aew$12$(not in LMFDB)
2.73.b_aew$12$(not in LMFDB)
2.73.j_bi$12$(not in LMFDB)
2.73.x_jy$12$(not in LMFDB)
2.73.bh_qc$12$(not in LMFDB)