Invariants
| Base field: | $\F_{53}$ |
| Dimension: | $2$ |
| L-polynomial: | $( 1 - 12 x + 53 x^{2} )( 1 + 12 x + 53 x^{2} )$ |
| $1 - 38 x^{2} + 2809 x^{4}$ | |
| Frobenius angles: | $\pm0.191645762723$, $\pm0.808354237277$ |
| Angle rank: | $1$ (numerical) |
| Jacobians: | $324$ |
| Cyclic group of points: | no |
| Non-cyclic primes: | $2, 3$ |
This isogeny class is not 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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $2772$ | $7683984$ | $22164626484$ | $62325593358336$ | $174887469557763732$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $54$ | $2734$ | $148878$ | $7898830$ | $418195494$ | $22164891838$ | $1174711139838$ | $62259687128734$ | $3299763591802134$ | $174887468750014414$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 324 curves (of which all are hyperelliptic):
- $y^2=43 x^6+30 x^5+27 x^4+50 x^3+7 x^2+50 x+14$
- $y^2=8 x^6+22 x^5+39 x^4+11 x^3+39 x^2+22 x+8$
- $y^2=16 x^6+44 x^5+25 x^4+22 x^3+25 x^2+44 x+16$
- $y^2=49 x^6+41 x^5+12 x^4+42 x^3+x^2+21 x+1$
- $y^2=45 x^6+29 x^5+24 x^4+31 x^3+2 x^2+42 x+2$
- $y^2=4 x^6+40 x^5+20 x^4+15 x^3+17 x^2+13 x+39$
- $y^2=18 x^6+19 x^5+24 x^4+12 x^3+17 x^2+7 x+50$
- $y^2=36 x^6+38 x^5+48 x^4+24 x^3+34 x^2+14 x+47$
- $y^2=16 x^6+23 x^5+32 x^4+2 x^3+49 x^2+31 x+48$
- $y^2=8 x^6+24 x^5+33 x^4+12 x^3+49 x^2+46 x+37$
- $y^2=16 x^6+48 x^5+13 x^4+24 x^3+45 x^2+39 x+21$
- $y^2=7 x^6+52 x^5+48 x^4+10 x^3+42 x^2+33 x+23$
- $y^2=34 x^6+23 x^5+17 x^4+10 x^3+6 x^2+9 x+15$
- $y^2=15 x^6+46 x^5+34 x^4+20 x^3+12 x^2+18 x+30$
- $y^2=7 x^6+32 x^5+43 x^4+26 x^3+46 x^2+37 x+13$
- $y^2=14 x^6+11 x^5+33 x^4+52 x^3+39 x^2+21 x+26$
- $y^2=34 x^6+48 x^5+37 x^4+21 x^3+9 x^2+45 x+2$
- $y^2=15 x^6+43 x^5+21 x^4+42 x^3+18 x^2+37 x+4$
- $y^2=49 x^6+9 x^5+39 x^4+26 x^3+24 x^2+8 x+25$
- $y^2=51 x^6+14 x^5+40 x^4+27 x^3+31 x^2+28 x+48$
- and 304 more
Decomposition and endomorphism algebra
All geometric endomorphisms are defined over $\F_{53^{2}}$.
Endomorphism algebra over $\F_{53}$| The isogeny class factors as 1.53.am $\times$ 1.53.m and its endomorphism algebra is a direct product of the endomorphism algebras for each isotypic factor. The endomorphism algebra for each factor is: |
| The base change of $A$ to $\F_{53^{2}}$ is 1.2809.abm 2 and its endomorphism algebra is $\mathrm{M}_{2}($\(\Q(\sqrt{-17}) \)$)$ |
Base change
This is a primitive isogeny class.