Invariants
| Base field: | $\F_{5}$ |
| Dimension: | $3$ |
| L-polynomial: | $1 + 7 x^{2} - 4 x^{3} + 35 x^{4} + 125 x^{6}$ |
| Frobenius angles: | $\pm0.260976308728$, $\pm0.536902371779$, $\pm0.691755156756$ |
| Angle rank: | $3$ (numerical) |
| Number field: | 6.0.29215664.3 |
| Galois group: | $S_4\times C_2$ |
| Jacobians: | $11$ |
| Isomorphism classes: | 28 |
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: | $3$ |
| Slopes: | $[0, 0, 0, 1, 1, 1]$ |
Point counts
Point counts of the abelian variety
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $164$ | $28208$ | $1769396$ | $260416256$ | $31932984644$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $6$ | $40$ | $114$ | $668$ | $3266$ | $15544$ | $77734$ | $388540$ | $1952142$ | $9776280$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 11 curves (of which 5 are hyperelliptic):
- $y^2=x^7+2 x^5+x^4+4 x^3+x+2$
- $y^2=x^8+x^5+3 x^4+4 x^3+x+3$
- $y^2=x^8+x^5+4 x^4+4 x^3+4 x^2+4 x+4$
- $y^2=x^8+x^6+2 x^3+x^2+3$
- $y^2=x^8+x^6+2 x^4+x^3+x^2+3$
- $4 x^3 y+3 x^3 z+2 x^2 y^2+x^2 y z+x y^2 z+x z^3+y^4=0$
- $3 x^3 y+3 x^3 z+2 x^2 y z+x y^2 z+x z^3+y^4=0$
- $x^3 y+2 x^3 z+x^2 y^2+2 x^2 y z+x y^2 z+x z^3+y^4=0$
- $4 x^4+2 x^3 y+4 x^3 z+3 x^2 y^2+x^2 y z+2 x y^2 z+x z^3+y^4=0$
- $4 x^4+x^3 y+4 x^3 z+2 x^2 y z+x y z^2+x z^3+y^3 z=0$
- $x^4+x^3 y+x^3 z+3 x^2 y^2+2 x^2 y z+3 x^2 z^2+x y z^2+x z^3+y^3 z=0$
Decomposition and endomorphism algebra
All geometric endomorphisms are defined over $\F_{5}$.
Endomorphism algebra over $\F_{5}$| The endomorphism algebra of this simple isogeny class is 6.0.29215664.3. |
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 |
|---|---|---|
| 3.5.a_h_e | $2$ | 3.25.o_ep_bbw |