Properties

Label 2.59.m_fm
Base field $\F_{59}$
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:  $\F_{59}$
Dimension:  $2$
L-polynomial:  $1 + 12 x + 142 x^{2} + 708 x^{3} + 3481 x^{4}$
Frobenius angles:  $\pm0.552785949046$, $\pm0.711272342164$
Angle rank:  $2$ (numerical)
Number field:  \(\Q(\sqrt{-152 -70 \sqrt{3}})\)
Galois group:  $D_{4}$
Jacobians:  $224$
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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $4344$ $12614976$ $41922523512$ $146838522479616$ $511138210667162424$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $72$ $3622$ $204120$ $12118030$ $714954312$ $42180483382$ $2488651739352$ $146830418113054$ $8662995947518920$ $511116754516780102$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 224 curves (of which all are hyperelliptic):

  • $y^2=45 x^6+2 x^5+11 x^4+35 x^3+7 x^2+23 x+37$
  • $y^2=51 x^6+48 x^5+2 x^4+30 x^3+22 x^2+43 x+2$
  • $y^2=31 x^6+17 x^5+8 x^4+21 x^3+35 x^2+13 x+27$
  • $y^2=55 x^6+37 x^5+23 x^4+49 x^3+57 x^2+24 x+27$
  • $y^2=34 x^6+48 x^5+22 x^4+26 x^3+x^2+21 x+53$
  • $y^2=33 x^6+10 x^5+x^4+37 x^3+13 x^2+53 x+27$
  • $y^2=21 x^6+51 x^5+34 x^4+55 x^3+7 x^2+21 x+41$
  • $y^2=41 x^6+20 x^5+26 x^4+48 x^3+2 x^2+56 x+21$
  • $y^2=41 x^6+55 x^5+26 x^4+10 x^3+21 x^2+40 x+25$
  • $y^2=29 x^6+35 x^5+10 x^4+36 x^3+15 x^2+6 x+17$
  • $y^2=24 x^6+23 x^5+42 x^4+37 x^3+33 x^2+27 x+45$
  • $y^2=56 x^6+13 x^5+29 x^4+4 x^3+22 x^2+35 x+46$
  • $y^2=21 x^6+10 x^5+54 x^4+18 x^3+47 x^2+25 x+57$
  • $y^2=32 x^6+26 x^5+6 x^4+4 x^3+16 x^2+12 x+31$
  • $y^2=57 x^6+49 x^5+5 x^4+4 x^3+31 x^2+34 x+16$
  • $y^2=22 x^6+56 x^5+54 x^4+4 x^3+38 x^2+35 x$
  • $y^2=55 x^6+18 x^5+55 x^4+17 x^3+14 x^2+53 x+43$
  • $y^2=53 x^6+5 x^4+11 x^3+38 x^2+29 x+56$
  • $y^2=16 x^6+21 x^5+53 x^4+26 x^3+51 x^2+17 x+40$
  • $y^2=13 x^6+12 x^5+26 x^4+24 x^3+21 x^2+47 x+23$
  • and 204 more

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{59}$.

Endomorphism algebra over $\F_{59}$
The endomorphism algebra of this simple isogeny class is \(\Q(\sqrt{-152 -70 \sqrt{3}})\).

Base change

This is a primitive isogeny class.

Twists

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

TwistExtension degreeCommon base change
2.59.am_fm$2$(not in LMFDB)