Properties

Label 2.53.am_eo
Base field $\F_{53}$
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:  $\F_{53}$
Dimension:  $2$
L-polynomial:  $1 - 12 x + 118 x^{2} - 636 x^{3} + 2809 x^{4}$
Frobenius angles:  $\pm0.230752796379$, $\pm0.475906917307$
Angle rank:  $2$ (numerical)
Number field:  \(\Q(\sqrt{-38 +6 \sqrt{6}})\)
Galois group:  $D_{4}$
Jacobians:  $182$
Cyclic group of points:    no
Non-cyclic primes:   $2$

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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $2280$ $8153280$ $22255848360$ $62260402867200$ $174896297925047400$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $42$ $2902$ $149490$ $7890574$ $418216602$ $22164734374$ $1174711467426$ $62259663465886$ $3299763407891850$ $174887470498059382$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 182 curves (of which all are hyperelliptic):

  • $y^2=19 x^6+33 x^5+33 x^4+6 x^3+34 x^2+37 x+23$
  • $y^2=9 x^6+24 x^5+41 x^4+13 x^3+32 x^2+8 x+45$
  • $y^2=39 x^6+48 x^5+22 x^4+44 x^3+3 x^2+23 x+14$
  • $y^2=35 x^6+24 x^5+44 x^4+22 x^3+8 x^2+22 x+52$
  • $y^2=2 x^6+7 x^5+18 x^4+43 x^3+47 x^2+4 x+5$
  • $y^2=41 x^6+2 x^5+40 x^4+49 x^3+35 x^2+38 x+11$
  • $y^2=38 x^6+13 x^5+16 x^4+12 x^3+35 x^2+52 x+45$
  • $y^2=22 x^6+44 x^5+18 x^4+22 x^3+15 x^2+14 x+22$
  • $y^2=40 x^6+35 x^5+16 x^4+4 x^3+6 x^2+15 x+11$
  • $y^2=32 x^6+35 x^5+40 x^4+40 x^3+25 x^2+25 x+29$
  • $y^2=8 x^6+46 x^5+37 x^4+14 x^3+27 x^2+27 x$
  • $y^2=4 x^6+18 x^5+25 x^4+29 x^3+24 x^2+26 x+5$
  • $y^2=3 x^6+34 x^5+36 x^4+20 x^3+3 x^2+41 x+39$
  • $y^2=48 x^6+41 x^5+4 x^4+36 x^3+9 x^2+1$
  • $y^2=4 x^6+3 x^5+6 x^4+31 x^3+34 x^2+8 x+23$
  • $y^2=16 x^5+35 x^4+41 x^3+3 x+25$
  • $y^2=6 x^6+34 x^5+34 x^4+42 x^3+41 x^2+44 x+10$
  • $y^2=51 x^6+7 x^5+40 x^4+21 x^3+40 x^2+7 x+8$
  • $y^2=29 x^6+44 x^5+37 x^4+52 x^3+49 x^2+10 x+32$
  • $y^2=29 x^6+21 x^5+29 x^4+34 x^3+10 x^2+17 x+1$
  • and 162 more

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{53}$.

Endomorphism algebra over $\F_{53}$
The endomorphism algebra of this simple isogeny class is \(\Q(\sqrt{-38 +6 \sqrt{6}})\).

Base change

This is a primitive isogeny class.

Twists

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

TwistExtension degreeCommon base change
2.53.m_eo$2$(not in LMFDB)