Invariants
| Base field: | $\F_{53}$ |
| Dimension: | $2$ |
| L-polynomial: | $1 - 12 x + 130 x^{2} - 636 x^{3} + 2809 x^{4}$ |
| Frobenius angles: | $\pm0.274770064888$, $\pm0.444276996108$ |
| Angle rank: | $2$ (numerical) |
| Number field: | \(\Q(\sqrt{-8 -2 \sqrt{3}})\) |
| Galois group: | $D_{4}$ |
| Jacobians: | $154$ |
| 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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $2292$ | $8223696$ | $22320341748$ | $62267984004096$ | $174880941838108692$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $42$ | $2926$ | $149922$ | $7891534$ | $418179882$ | $22164375166$ | $1174711074306$ | $62259674915998$ | $3299763467157930$ | $174887470803074446$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 154 curves (of which all are hyperelliptic):
- $y^2=35 x^6+33 x^5+8 x^4+29 x^3+28 x^2+27 x+49$
- $y^2=31 x^6+32 x^5+25 x^4+38 x^3+44 x^2+46 x+14$
- $y^2=14 x^6+13 x^5+6 x^4+27 x^3+24 x^2+7 x+48$
- $y^2=30 x^6+48 x^5+37 x^4+6 x^3+43 x^2+39 x+31$
- $y^2=35 x^6+6 x^5+44 x^4+25 x^3+51 x^2+x+26$
- $y^2=20 x^6+41 x^5+7 x^4+18 x^3+2 x^2+52 x+28$
- $y^2=48 x^6+50 x^5+37 x^4+17 x^3+40 x^2+50 x+9$
- $y^2=47 x^6+2 x^5+16 x^4+4 x^3+33 x^2+22 x+33$
- $y^2=3 x^5+3 x^4+22 x^3+17 x^2+23 x+14$
- $y^2=30 x^6+16 x^5+20 x^4+52 x^3+27 x^2+13 x+24$
- $y^2=9 x^6+24 x^5+x^4+47 x^3+33 x^2+18 x+38$
- $y^2=9 x^6+8 x^5+36 x^4+8 x^3+49 x^2+15 x+8$
- $y^2=17 x^6+28 x^5+49 x^3+33 x^2+32 x+11$
- $y^2=5 x^6+24 x^5+13 x^4+19 x^3+10 x^2+14 x+23$
- $y^2=18 x^6+52 x^5+6 x^4+19 x^3+44 x^2+4 x+15$
- $y^2=26 x^6+37 x^5+44 x^4+36 x^3+x^2+49 x+38$
- $y^2=16 x^6+18 x^5+27 x^4+51 x^3+51 x^2+x+41$
- $y^2=20 x^6+19 x^5+5 x^4+24 x^3+29 x^2+24 x+35$
- $y^2=18 x^6+43 x^5+19 x^4+39 x^3+8 x^2+15 x+37$
- $y^2=18 x^6+4 x^5+40 x^3+17 x^2+21 x+45$
- and 134 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 \(\Q(\sqrt{-8 -2 \sqrt{3}})\). |
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.m_fa | $2$ | (not in LMFDB) |