Properties

Label 2.37.m_dq
Base field $\F_{37}$
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:  $\F_{37}$
Dimension:  $2$
L-polynomial:  $( 1 + 2 x + 37 x^{2} )( 1 + 10 x + 37 x^{2} )$
  $1 + 12 x + 94 x^{2} + 444 x^{3} + 1369 x^{4}$
Frobenius angles:  $\pm0.552568456711$, $\pm0.807138866923$
Angle rank:  $2$ (numerical)
Jacobians:  $120$
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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $1920$ $1935360$ $2549439360$ $3512291328000$ $4808285574729600$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $50$ $1414$ $50330$ $1874062$ $69339650$ $2565871126$ $94931033450$ $3512478024478$ $129961777898450$ $4808584226024614$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 120 curves (of which all are hyperelliptic):

  • $y^2=16 x^6+30 x^5+23 x^4+9 x^3+36 x^2+30 x+9$
  • $y^2=11 x^6+35 x^5+25 x^4+27 x^3+17 x^2+24 x+30$
  • $y^2=23 x^6+36 x^5+28 x^4+20 x^3+34 x^2+4 x+31$
  • $y^2=36 x^6+22 x^5+20 x^4+26 x^3+31 x^2+19 x+27$
  • $y^2=9 x^6+11 x^5+21 x^4+14 x^3+21 x^2+11 x+9$
  • $y^2=21 x^6+4 x^5+3 x^4+11 x^3+12 x^2+27 x+12$
  • $y^2=2 x^6+14 x^5+22 x^4+21 x^3+9 x^2+3$
  • $y^2=3 x^6+5 x^5+3 x^4+30 x^3+9 x^2+12 x+1$
  • $y^2=36 x^6+10 x^5+x^4+27 x^3+7 x^2+7 x+18$
  • $y^2=19 x^6+35 x^5+27 x^4+30 x^3+22 x^2+10 x+7$
  • $y^2=12 x^6+x^5+29 x^4+3 x^3+33 x^2+9 x+21$
  • $y^2=32 x^6+31 x^5+9 x^4+11 x^3+13 x^2+3 x$
  • $y^2=31 x^6+36 x^5+20 x^3+36 x+31$
  • $y^2=27 x^6+29 x^5+17 x^4+x^3+14 x^2+2 x+26$
  • $y^2=x^6+34 x^5+34 x^4+7 x^3+30 x^2+20 x+11$
  • $y^2=34 x^6+13 x^5+30 x^4+19 x^3+25 x^2+13 x+33$
  • $y^2=21 x^6+11 x^5+23 x^4+11 x^3+15 x^2+x+35$
  • $y^2=26 x^6+24 x^5+8 x^4+15 x^3+19 x^2+31 x+22$
  • $y^2=12 x^6+21 x^5+17 x^4+27 x^3+23 x^2+4 x+9$
  • $y^2=8 x^6+3 x^5+14 x^4+15 x^3+18 x^2+11 x+6$
  • and 100 more

Decomposition and endomorphism algebra

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

Endomorphism algebra over $\F_{37}$
The isogeny class factors as 1.37.c $\times$ 1.37.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
2.37.am_dq$2$(not in LMFDB)
2.37.ai_cc$2$(not in LMFDB)
2.37.i_cc$2$(not in LMFDB)
2.37.aj_ca$3$(not in LMFDB)
2.37.d_cy$3$(not in LMFDB)

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

TwistExtension degreeCommon base change
2.37.am_dq$2$(not in LMFDB)
2.37.ai_cc$2$(not in LMFDB)
2.37.i_cc$2$(not in LMFDB)
2.37.aj_ca$3$(not in LMFDB)
2.37.d_cy$3$(not in LMFDB)
2.37.aw_hm$4$(not in LMFDB)
2.37.ac_abu$4$(not in LMFDB)
2.37.c_abu$4$(not in LMFDB)
2.37.w_hm$4$(not in LMFDB)
2.37.an_ds$6$(not in LMFDB)
2.37.ad_cy$6$(not in LMFDB)
2.37.ab_cu$6$(not in LMFDB)
2.37.b_cu$6$(not in LMFDB)
2.37.j_ca$6$(not in LMFDB)
2.37.n_ds$6$(not in LMFDB)
2.37.ax_hy$12$(not in LMFDB)
2.37.an_di$12$(not in LMFDB)
2.37.al_ck$12$(not in LMFDB)
2.37.ab_acg$12$(not in LMFDB)
2.37.b_acg$12$(not in LMFDB)
2.37.l_ck$12$(not in LMFDB)
2.37.n_di$12$(not in LMFDB)
2.37.x_hy$12$(not in LMFDB)