Properties

Label 2.53.g_z
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:  $1 + 6 x + 25 x^{2} + 318 x^{3} + 2809 x^{4}$
Frobenius angles:  $\pm0.353019698972$, $\pm0.828044898048$
Angle rank:  $2$ (numerical)
Number field:  \(\Q(\sqrt{-113 -18 \sqrt{10}})\)
Galois group:  $D_{4}$
Jacobians:  $126$
Cyclic group of points:    no
Non-cyclic primes:   $3$

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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $3159$ $7932249$ $22271821884$ $62296464846681$ $174859347001583439$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $60$ $2824$ $149598$ $7895140$ $418128240$ $22164379918$ $1174709204736$ $62259709854724$ $3299763706461414$ $174887469754060264$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 126 curves (of which all are hyperelliptic):

  • $y^2=14 x^6+40 x^5+x^4+10 x^3+36 x^2+51 x+33$
  • $y^2=23 x^6+15 x^5+20 x^4+24 x^3+40 x^2+30 x+22$
  • $y^2=8 x^6+42 x^5+12 x^4+8 x^3+19 x^2+28 x+44$
  • $y^2=9 x^6+36 x^5+4 x^4+25 x^3+20 x^2+19 x+17$
  • $y^2=47 x^6+35 x^5+30 x^4+49 x^3+36 x^2+26 x+31$
  • $y^2=4 x^6+18 x^5+17 x^4+49 x^3+17$
  • $y^2=42 x^6+3 x^5+39 x^4+41 x^3+46 x^2+39 x+49$
  • $y^2=19 x^6+16 x^5+13 x^4+31 x^3+47 x^2+14 x+47$
  • $y^2=52 x^6+23 x^5+44 x^4+21 x^3+51 x^2+6 x+43$
  • $y^2=17 x^6+17 x^5+48 x^4+46 x^3+34 x^2+39 x+14$
  • $y^2=31 x^6+40 x^5+20 x^4+45 x^3+44 x^2+2 x+38$
  • $y^2=14 x^6+30 x^5+40 x^4+48 x^3+31 x^2+13 x+9$
  • $y^2=17 x^6+32 x^5+4 x^4+22 x^3+19 x^2+6 x+33$
  • $y^2=4 x^6+34 x^5+37 x^4+18 x^3+33 x^2+3 x+39$
  • $y^2=25 x^6+36 x^5+47 x^4+36 x^3+46 x^2+47 x+38$
  • $y^2=36 x^6+8 x^5+3 x^4+34 x^3+3 x^2+27 x+33$
  • $y^2=42 x^6+32 x^5+35 x^4+9 x^3+18 x^2+20 x+36$
  • $y^2=43 x^6+14 x^5+35 x^4+21 x^3+3 x^2+26 x+26$
  • $y^2=42 x^6+23 x^5+13 x^4+48 x^3+45 x^2+7 x+45$
  • $y^2=15 x^6+47 x^5+16 x^4+14 x^3+50 x^2+23 x+4$
  • and 106 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 \(\Q(\sqrt{-113 -18 \sqrt{10}})\).

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.ag_z$2$(not in LMFDB)