Invariants
| Base field: | $\F_{53}$ |
| Dimension: | $2$ |
| L-polynomial: | $1 + 14 x + 143 x^{2} + 742 x^{3} + 2809 x^{4}$ |
| Frobenius angles: | $\pm0.578081133884$, $\pm0.755252199450$ |
| Angle rank: | $1$ (numerical) |
| Number field: | \(\Q(\zeta_{12})\) |
| Galois group: | $C_2^2$ |
| Jacobians: | $78$ |
| Isomorphism classes: | 44 |
| 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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $3709$ | $8148673$ | $22010689600$ | $62279272857529$ | $174890520318453229$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $68$ | $2900$ | $147842$ | $7892964$ | $418202788$ | $22164419990$ | $1174710341236$ | $62259680790724$ | $3299763776528186$ | $174887469582324500$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 78 curves (of which all are hyperelliptic):
- $y^2=41 x^6+47 x^5+7 x^4+13 x^3+44 x^2+5 x+25$
- $y^2=36 x^6+21 x^5+9 x^4+30 x^3+12 x^2+49 x+49$
- $y^2=x^6+25 x^5+12 x^4+16 x^3+33 x^2+11 x+44$
- $y^2=x^6+22 x^5+11 x^4+24 x^3+48 x^2+37 x+19$
- $y^2=50 x^6+14 x^5+x^4+13 x^3+4 x^2+32 x+47$
- $y^2=52 x^6+6 x^5+18 x^4+24 x^3+46 x^2+52 x+44$
- $y^2=8 x^6+44 x^5+2 x^4+17 x^3+29 x^2+10 x+48$
- $y^2=49 x^6+30 x^5+25 x^4+31 x^3+45 x^2+15 x+24$
- $y^2=38 x^6+3 x^5+15 x^4+14 x^3+20 x^2+18 x+38$
- $y^2=20 x^6+45 x^5+23 x^4+41 x^3+38 x^2+50 x+8$
- $y^2=6 x^6+10 x^5+38 x^4+48 x^3+34 x^2+36 x+30$
- $y^2=42 x^6+4 x^5+3 x^4+20 x^3+5 x^2+52 x+36$
- $y^2=28 x^6+42 x^5+33 x^4+31 x^3+35 x^2+21 x+47$
- $y^2=49 x^6+27 x^5+47 x^4+22 x^3+48 x^2+44 x+32$
- $y^2=21 x^6+9 x^5+47 x^4+14 x^3+49 x^2+10 x+6$
- $y^2=34 x^6+25 x^5+33 x^4+20 x^3+41 x^2+18 x+50$
- $y^2=x^6+34 x^5+49 x^4+18 x^3+3 x^2+42 x+21$
- $y^2=3 x^6+20 x^5+51 x^4+14 x^3+25 x^2+10 x+17$
- $y^2=40 x^6+15 x^4+52 x^3+49 x^2+3 x+40$
- $y^2=41 x^6+14 x^5+10 x^4+2 x^3+38 x^2+31 x+35$
- and 58 more
Decomposition and endomorphism algebra
All geometric endomorphisms are defined over $\F_{53^{3}}$.
Endomorphism algebra over $\F_{53}$| The endomorphism algebra of this simple isogeny class is \(\Q(\zeta_{12})\). |
| The base change of $A$ to $\F_{53^{3}}$ is 1.148877.aty 2 and its endomorphism algebra is $\mathrm{M}_{2}($\(\Q(\sqrt{-1}) \)$)$ |
Base change
This is a primitive isogeny class.