Properties

Label 2.59.a_dy
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:  $( 1 - 4 x + 59 x^{2} )( 1 + 4 x + 59 x^{2} )$
  $1 + 102 x^{2} + 3481 x^{4}$
Frobenius angles:  $\pm0.416152878126$, $\pm0.583847121874$
Angle rank:  $1$ (numerical)
Jacobians:  $268$
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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $3584$ $12845056$ $42180529664$ $146747057766400$ $511116752050978304$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $60$ $3686$ $205380$ $12110478$ $714924300$ $42180525686$ $2488651484820$ $146830462379038$ $8662995818654940$ $511116750801315206$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 268 curves (of which all are hyperelliptic):

  • $y^2=44 x^6+45 x^5+43 x^4+23 x^3+43 x^2+45 x+44$
  • $y^2=29 x^6+31 x^5+27 x^4+46 x^3+27 x^2+31 x+29$
  • $y^2=34 x^6+25 x^5+17 x^4+50 x^3+32 x^2+23 x+28$
  • $y^2=9 x^6+50 x^5+34 x^4+41 x^3+5 x^2+46 x+56$
  • $y^2=12 x^6+6 x^5+58 x^4+50 x^3+46 x^2+6 x+53$
  • $y^2=24 x^6+12 x^5+57 x^4+41 x^3+33 x^2+12 x+47$
  • $y^2=22 x^6+57 x^5+25 x^4+54 x^3+25 x^2+57 x+22$
  • $y^2=44 x^6+55 x^5+50 x^4+49 x^3+50 x^2+55 x+44$
  • $y^2=23 x^5+57 x^4+41 x^3+6 x^2+52 x+53$
  • $y^2=46 x^5+55 x^4+23 x^3+12 x^2+45 x+47$
  • $y^2=34 x^6+35 x^5+7 x^4+49 x^3+21 x^2+24 x+21$
  • $y^2=9 x^6+11 x^5+14 x^4+39 x^3+42 x^2+48 x+42$
  • $y^2=35 x^6+5 x^5+52 x^4+9 x^3+57 x^2+14 x+47$
  • $y^2=11 x^6+10 x^5+45 x^4+18 x^3+55 x^2+28 x+35$
  • $y^2=34 x^6+25 x^5+8 x^4+2 x^3+41 x+52$
  • $y^2=9 x^6+50 x^5+16 x^4+4 x^3+23 x+45$
  • $y^2=20 x^6+22 x^5+35 x^4+35 x^3+44 x^2+55 x+9$
  • $y^2=40 x^6+44 x^5+11 x^4+11 x^3+29 x^2+51 x+18$
  • $y^2=9 x^6+23 x^5+29 x^4+27 x^3+55 x^2+55 x+42$
  • $y^2=51 x^6+38 x^5+50 x^4+41 x^3+24 x^2+4 x+47$
  • and 248 more

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{59^{2}}$.

Endomorphism algebra over $\F_{59}$
The isogeny class factors as 1.59.ae $\times$ 1.59.e and its endomorphism algebra is a direct product of the endomorphism algebras for each isotypic factor. The endomorphism algebra for each factor is:
Endomorphism algebra over $\overline{\F}_{59}$
The base change of $A$ to $\F_{59^{2}}$ is 1.3481.dy 2 and its endomorphism algebra is $\mathrm{M}_{2}($\(\Q(\sqrt{-55}) \)$)$

Base change

This is a primitive isogeny class.

Twists

Below are some of the twists of this isogeny class.

TwistExtension degreeCommon base change
2.59.ai_fe$2$(not in LMFDB)
2.59.i_fe$2$(not in LMFDB)
2.59.a_ady$4$(not in LMFDB)

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

TwistExtension degreeCommon base change
2.59.ai_fe$2$(not in LMFDB)
2.59.i_fe$2$(not in LMFDB)
2.59.a_ady$4$(not in LMFDB)
2.59.ae_abr$6$(not in LMFDB)
2.59.e_abr$6$(not in LMFDB)