Properties

Label 2.59.ag_ct
Base field $\F_{59}$
Dimension $2$
$p$-rank $2$
Ordinary yes
Supersingular no
Simple yes
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:  $1 - 6 x + 71 x^{2} - 354 x^{3} + 3481 x^{4}$
Frobenius angles:  $\pm0.260933791315$, $\pm0.594267124648$
Angle rank:  $1$ (numerical)
Number field:  \(\Q(\sqrt{-3}, \sqrt{14})\)
Galois group:  $C_2^2$
Jacobians:  $186$
Cyclic group of points:    yes

This isogeny class is simple but not 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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $3193$ $12494209$ $42180449584$ $146882233359225$ $511176848617702873$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $54$ $3588$ $205380$ $12121636$ $715008354$ $42180365526$ $2488646021286$ $146830431636676$ $8662995818654940$ $511116752375465028$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 186 curves (of which all are hyperelliptic):

  • $y^2=39 x^6+38 x^5+26 x^4+37 x^3+29 x^2+27 x+44$
  • $y^2=32 x^6+4 x^5+47 x^4+29 x^3+22 x^2+42$
  • $y^2=16 x^6+40 x^5+x^4+27 x^3+57 x^2+41 x+30$
  • $y^2=28 x^6+6 x^5+40 x^4+35 x^3+17 x^2+44 x+28$
  • $y^2=50 x^6+19 x^5+37 x^4+31 x^3+52 x^2+51 x+28$
  • $y^2=5 x^6+26 x^5+16 x^4+12 x^3+39 x^2+40 x+10$
  • $y^2=41 x^6+40 x^5+18 x^4+43 x^3+34 x^2+18 x+27$
  • $y^2=23 x^6+42 x^5+41 x^4+14 x^3+52 x^2+44 x+31$
  • $y^2=41 x^6+x^5+23 x^4+39 x^3+29 x^2+30 x+4$
  • $y^2=32 x^6+29 x^5+39 x^4+36 x^3+36 x^2+51 x+3$
  • $y^2=37 x^6+30 x^5+23 x^4+51 x^3+27 x^2+21 x+43$
  • $y^2=13 x^6+41 x^5+31 x^4+25 x^3+36 x^2+12 x+58$
  • $y^2=43 x^6+23 x^5+13 x^4+4 x^3+4 x^2+5 x+54$
  • $y^2=27 x^6+58 x^5+11 x^4+51 x^3+18 x^2+9 x+27$
  • $y^2=42 x^6+37 x^5+30 x^4+5 x^3+45 x^2+20 x+14$
  • $y^2=52 x^6+32 x^5+51 x^4+21 x^3+51 x^2+54 x+8$
  • $y^2=6 x^6+48 x^5+54 x^4+10 x^3+18 x^2+58 x+56$
  • $y^2=2 x^6+42 x^5+38 x^4+24 x^3+51 x^2+40 x+26$
  • $y^2=43 x^6+57 x^5+x^4+17 x^2+20 x+9$
  • $y^2=22 x^6+30 x^5+46 x^4+39 x^3+39 x^2+13 x+17$
  • and 166 more

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{59^{6}}$.

Endomorphism algebra over $\F_{59}$
The endomorphism algebra of this simple isogeny class is \(\Q(\sqrt{-3}, \sqrt{14})\).
Endomorphism algebra over $\overline{\F}_{59}$
The base change of $A$ to $\F_{59^{6}}$ is 1.42180533641.aeuja 2 and its endomorphism algebra is $\mathrm{M}_{2}($\(\Q(\sqrt{-42}) \)$)$
Remainder of endomorphism lattice by field

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.g_ct$2$(not in LMFDB)
2.59.a_aec$3$(not in LMFDB)
2.59.g_ct$3$(not in LMFDB)

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

TwistExtension degreeCommon base change
2.59.g_ct$2$(not in LMFDB)
2.59.a_aec$3$(not in LMFDB)
2.59.g_ct$3$(not in LMFDB)
2.59.a_ec$12$(not in LMFDB)