Invariants
| Base field: | $\F_{53}$ |
| Dimension: | $2$ |
| L-polynomial: | $1 + 2 x + 90 x^{2} + 106 x^{3} + 2809 x^{4}$ |
| Frobenius angles: | $\pm0.431189182096$, $\pm0.614449440024$ |
| Angle rank: | $2$ (numerical) |
| Number field: | \(\Q(\sqrt{-214 -22 \sqrt{17}})\) |
| Galois group: | $D_{4}$ |
| Jacobians: | $128$ |
| Cyclic group of points: | no |
| Non-cyclic primes: | $2$ |
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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $3008$ | $8398336$ | $22132481984$ | $62225085464576$ | $174889043015194048$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $56$ | $2986$ | $148664$ | $7886094$ | $418199256$ | $22164276826$ | $1174712036120$ | $62259708133278$ | $3299763474061688$ | $174887469147825546$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 128 curves (of which all are hyperelliptic):
- $y^2=44 x^6+35 x^5+29 x^4+30 x^3+12 x^2+12 x+6$
- $y^2=16 x^5+45 x^4+3 x^3+42 x^2+42 x+21$
- $y^2=20 x^6+47 x^5+46 x^4+31 x^3+45 x^2+38 x+48$
- $y^2=49 x^6+36 x^5+16 x^4+39 x^3+51 x^2+44 x+26$
- $y^2=44 x^5+52 x^4+28 x^3+51 x^2+18 x+1$
- $y^2=10 x^6+27 x^5+8 x^4+24 x^3+22 x^2+42 x+12$
- $y^2=46 x^6+31 x^5+5 x^4+30 x^3+x^2+12 x+20$
- $y^2=6 x^6+31 x^5+40 x^4+20 x^3+33 x^2+6 x+21$
- $y^2=26 x^6+44 x^5+8 x^4+42 x^3+39 x^2+8 x+26$
- $y^2=13 x^6+4 x^5+15 x^4+11 x^3+9 x^2+47 x+35$
- $y^2=10 x^6+7 x^5+30 x^4+14 x^3+39 x^2+11 x+41$
- $y^2=16 x^6+30 x^5+14 x^4+16 x^3+29 x^2+2 x+4$
- $y^2=52 x^6+11 x^4+21 x^3+8 x^2+36 x+14$
- $y^2=47 x^6+37 x^5+38 x^4+32 x^3+48 x^2+26 x+27$
- $y^2=21 x^6+22 x^5+29 x^4+15 x^3+17 x^2+15 x+4$
- $y^2=40 x^6+50 x^5+10 x^4+51 x^3+16 x^2+50 x+38$
- $y^2=19 x^6+14 x^5+14 x^4+16 x^3+31 x^2+29 x+39$
- $y^2=50 x^6+2 x^5+20 x^4+38 x^3+32 x^2+27 x+18$
- $y^2=24 x^6+51 x^5+37 x^4+44 x^3+14 x^2+12 x+15$
- $y^2=14 x^6+15 x^5+51 x^4+8 x^3+8 x^2+38 x+7$
- and 108 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 \(\Q(\sqrt{-214 -22 \sqrt{17}})\). |
Base change
This is a primitive isogeny class.
Twists
Below is a list of all twists of this isogeny class.
| Twist | Extension degree | Common base change |
|---|---|---|
| 2.53.ac_dm | $2$ | (not in LMFDB) |