Properties

Label 2.37.e_bm
Base field $\F_{37}$
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:  $\F_{37}$
Dimension:  $2$
L-polynomial:  $1 + 4 x + 38 x^{2} + 148 x^{3} + 1369 x^{4}$
Frobenius angles:  $\pm0.384318689302$, $\pm0.739880868478$
Angle rank:  $2$ (numerical)
Number field:  4.0.4070400.3
Galois group:  $D_{4}$
Jacobians:  $140$

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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $1560$ $1959360$ $2568323160$ $3516972825600$ $4806787550799000$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $42$ $1430$ $50706$ $1876558$ $69318042$ $2565649190$ $94932745026$ $3512479472158$ $129961753649802$ $4808584293572150$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 140 curves (of which all are hyperelliptic):

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{37}$.

Endomorphism algebra over $\F_{37}$
The endomorphism algebra of this simple isogeny class is 4.0.4070400.3.

Base change

This is a primitive isogeny class.

Twists

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

TwistExtension degreeCommon base change
2.37.ae_bm$2$(not in LMFDB)