Properties

Label 2.53.ae_ap
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

Related objects

Downloads

Learn more

Invariants

Base field:  $\F_{53}$
Dimension:  $2$
L-polynomial:  $1 - 4 x - 15 x^{2} - 212 x^{3} + 2809 x^{4}$
Frobenius angles:  $\pm0.139698859935$, $\pm0.717153535116$
Angle rank:  $2$ (numerical)
Number field:  \(\Q(\sqrt{-298 -46 \sqrt{5}})\)
Galois group:  $D_{4}$
Jacobians:  $60$
Cyclic group of points:    yes

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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $2579$ $7765369$ $22033779344$ $62308458900041$ $174892905810514939$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $50$ $2764$ $147998$ $7896660$ $418208490$ $22164448438$ $1174715465666$ $62259694425444$ $3299763654749414$ $174887471349340764$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 60 curves (of which all are hyperelliptic):

  • $y^2=38 x^6+40 x^5+14 x^4+44 x^3+28 x^2+7 x+12$
  • $y^2=21 x^6+31 x^5+18 x^4+2 x^3+18 x^2+39 x+8$
  • $y^2=x^6+13 x^5+24 x^4+14 x^3+12 x^2+48 x+7$
  • $y^2=22 x^6+20 x^5+29 x^4+50 x^3+24 x^2+46 x+28$
  • $y^2=14 x^6+25 x^5+35 x^4+34 x^3+49 x^2+17 x+6$
  • $y^2=48 x^6+25 x^5+20 x^4+45 x^3+51 x^2+27 x+15$
  • $y^2=4 x^6+40 x^5+38 x^4+23 x^3+24 x^2+8 x+17$
  • $y^2=38 x^6+6 x^5+25 x^4+41 x^3+41 x^2+18 x+12$
  • $y^2=18 x^6+49 x^5+47 x^4+45 x^3+5 x^2+52 x+33$
  • $y^2=11 x^6+24 x^5+52 x^4+12 x^3+31 x^2+44 x+50$
  • $y^2=7 x^6+49 x^4+19 x^3+26 x^2+11 x+24$
  • $y^2=39 x^6+23 x^5+47 x^4+3 x^3+13 x^2+27 x+40$
  • $y^2=45 x^6+2 x^5+47 x^4+13 x^3+48 x^2+50 x+13$
  • $y^2=9 x^6+41 x^5+27 x^4+40 x^3+37 x^2+15 x+41$
  • $y^2=15 x^6+52 x^5+42 x^4+49 x^3+44 x^2+21 x+23$
  • $y^2=8 x^6+31 x^5+44 x^4+27 x^3+41 x^2+21 x+8$
  • $y^2=23 x^6+4 x^5+42 x^4+22 x^3+29 x^2+3 x+10$
  • $y^2=32 x^6+x^5+24 x^4+6 x^3+45 x^2+10 x+30$
  • $y^2=39 x^6+38 x^5+29 x^4+10 x^3+10 x^2+44 x+47$
  • $y^2=20 x^6+39 x^5+32 x^4+19 x^3+5 x^2+24 x+21$
  • and 40 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 \(\Q(\sqrt{-298 -46 \sqrt{5}})\).

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.e_ap$2$(not in LMFDB)