Invariants
| Base field: | $\F_{53}$ |
| Dimension: | $2$ |
| L-polynomial: | $1 + 6 x + 98 x^{2} + 318 x^{3} + 2809 x^{4}$ |
| Frobenius angles: | $\pm0.475422686686$, $\pm0.662717354792$ |
| Angle rank: | $2$ (numerical) |
| Number field: | \(\Q(\sqrt{-222 -30 \sqrt{17}})\) |
| Galois group: | $D_{4}$ |
| Jacobians: | $176$ |
| 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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $3232$ | $8351488$ | $22076088736$ | $62237693804544$ | $174890484370486432$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $60$ | $2970$ | $148284$ | $7887694$ | $418202700$ | $22164330570$ | $1174713172140$ | $62259686752414$ | $3299763404066652$ | $174887471290073850$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 176 curves (of which all are hyperelliptic):
- $y^2=29 x^6+10 x^5+8 x^4+14 x^3+12 x^2+31 x+13$
- $y^2=34 x^6+8 x^5+31 x^4+2 x^3+4 x^2+19 x+7$
- $y^2=7 x^6+8 x^5+17 x^4+50 x^3+22 x^2+33 x+7$
- $y^2=44 x^6+25 x^5+21 x^4+51 x^3+10 x^2+28 x+26$
- $y^2=21 x^6+51 x^5+25 x^4+25 x^3+4 x^2+35 x+40$
- $y^2=8 x^5+36 x^4+19 x^3+51 x^2+9 x+41$
- $y^2=50 x^6+29 x^5+28 x^4+26 x^3+18 x^2+21 x+7$
- $y^2=24 x^6+21 x^5+11 x^4+51 x^3+10 x^2+34 x+51$
- $y^2=51 x^6+30 x^5+44 x^4+20 x^3+52 x^2+40 x+33$
- $y^2=4 x^6+46 x^5+13 x^4+6 x^3+41 x^2+47 x+38$
- $y^2=41 x^6+5 x^5+14 x^4+8 x^3+5 x^2+46 x+5$
- $y^2=47 x^6+7 x^5+19 x^4+33 x^3+31 x^2+35$
- $y^2=5 x^6+28 x^5+51 x^4+16 x^3+45 x^2+9 x+22$
- $y^2=6 x^6+4 x^5+17 x^4+6 x^3+17 x^2+16 x+48$
- $y^2=24 x^6+2 x^5+12 x^4+25 x^3+30 x^2+52 x+38$
- $y^2=38 x^6+35 x^5+49 x^4+48 x^3+37 x^2+17 x+3$
- $y^2=44 x^6+26 x^5+26 x^4+26 x^3+29 x^2+17 x+44$
- $y^2=46 x^6+17 x^5+11 x^4+49 x^3+x^2+20 x+47$
- $y^2=3 x^6+15 x^5+45 x^4+3 x^3+11 x^2+17 x+44$
- $y^2=39 x^6+9 x^5+38 x^4+44 x^3+49 x^2+32 x+7$
- and 156 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 \(\Q(\sqrt{-222 -30 \sqrt{17}})\). |
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.ag_du | $2$ | (not in LMFDB) |