Properties

Label 2.59.e_di
Base field $\F_{59}$
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:  $\F_{59}$
Dimension:  $2$
L-polynomial:  $( 1 - 4 x + 59 x^{2} )( 1 + 8 x + 59 x^{2} )$
  $1 + 4 x + 86 x^{2} + 236 x^{3} + 3481 x^{4}$
Frobenius angles:  $\pm0.416152878126$, $\pm0.674349734762$
Angle rank:  $2$ (numerical)
Jacobians:  $328$
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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $3808$ $12673024$ $42126963424$ $146837766799360$ $511094736836359648$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $64$ $3638$ $205120$ $12117966$ $714893504$ $42180123206$ $2488656537536$ $146830457856286$ $8662995507177280$ $511116753041169878$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 328 curves (of which all are hyperelliptic):

  • $y^2=46 x^6+58 x^5+16 x^4+47 x^3+14 x^2+14 x+54$
  • $y^2=45 x^6+51 x^5+40 x^4+54 x^3+55 x^2+16 x+3$
  • $y^2=34 x^6+25 x^5+34 x^4+8 x^3+22 x^2+46 x+24$
  • $y^2=6 x^6+52 x^5+39 x^4+2 x^3+35 x^2+45 x+41$
  • $y^2=11 x^6+32 x^5+3 x^3+52 x^2+25 x+50$
  • $y^2=17 x^6+49 x^5+38 x^4+41 x^3+12 x^2+44 x+39$
  • $y^2=10 x^6+16 x^5+22 x^4+51 x^3+27 x^2+28 x+55$
  • $y^2=18 x^6+25 x^5+52 x^4+38 x^3+30 x^2+45 x+43$
  • $y^2=41 x^6+20 x^5+29 x^4+7 x^3+42 x^2+54 x+16$
  • $y^2=28 x^6+15 x^5+44 x^4+15 x^3+45 x^2+1$
  • $y^2=30 x^6+28 x^5+37 x^4+44 x^3+37 x^2+28 x+30$
  • $y^2=2 x^6+14 x^5+17 x^4+58 x^2+23 x+5$
  • $y^2=47 x^6+57 x^5+37 x^4+38 x^3+39 x^2+53$
  • $y^2=35 x^6+58 x^5+26 x^4+6 x^3+41 x^2+32 x+44$
  • $y^2=11 x^6+50 x^5+16 x^4+46 x^3+57 x^2+50 x+51$
  • $y^2=20 x^6+39 x^5+13 x^4+7 x^3+20 x^2+5 x+9$
  • $y^2=58 x^6+8 x^5+27 x^4+33 x^3+22 x^2+6 x+15$
  • $y^2=44 x^6+49 x^5+25 x^4+49 x^3+31 x^2+32 x+29$
  • $y^2=10 x^6+21 x^5+53 x^3+3 x^2+33 x+57$
  • $y^2=56 x^6+26 x^5+12 x^4+34 x^3+43 x^2+19 x+57$
  • and 308 more

Decomposition and endomorphism algebra

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

Endomorphism algebra over $\F_{59}$
The isogeny class factors as 1.59.ae $\times$ 1.59.i 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 is a list of all twists of this isogeny class.

TwistExtension degreeCommon base change
2.59.am_fu$2$(not in LMFDB)
2.59.ae_di$2$(not in LMFDB)
2.59.m_fu$2$(not in LMFDB)