Invariants
Base field: | $\F_{3}$ |
Dimension: | $4$ |
L-polynomial: | $( 1 - 3 x + 3 x^{2} )^{2}( 1 - 4 x + 8 x^{2} - 12 x^{3} + 9 x^{4} )$ |
$1 - 10 x + 47 x^{2} - 138 x^{3} + 282 x^{4} - 414 x^{5} + 423 x^{6} - 270 x^{7} + 81 x^{8}$ | |
Frobenius angles: | $\pm0.0540867239847$, $\pm0.166666666667$, $\pm0.166666666667$, $\pm0.445913276015$ |
Angle rank: | $1$ (numerical) |
This isogeny class is not simple, primitive, not ordinary, and not supersingular. It is principally polarizable.
Newton polygon
$p$-rank: | $2$ |
Slopes: | $[0, 0, 1/2, 1/2, 1/2, 1/2, 1, 1]$ |
Point counts
Point counts of the abelian variety
$r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
---|---|---|---|---|---|
$A(\F_{q^r})$ | $2$ | $3332$ | $490784$ | $38291344$ | $3619319362$ |
Point counts of the (virtual) curve
$r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
---|---|---|---|---|---|---|---|---|---|---|
$C(\F_{q^r})$ | $-6$ | $4$ | $24$ | $72$ | $254$ | $838$ | $2402$ | $6656$ | $19392$ | $58564$ |
Jacobians and polarizations
This isogeny class is principally polarizable, but does not contain a Jacobian.
Decomposition and endomorphism algebra
All geometric endomorphisms are defined over $\F_{3^{12}}$.
Endomorphism algebra over $\F_{3}$The isogeny class factors as 1.3.ad 2 $\times$ 2.3.ae_i 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 $\F_{3^{12}}$ is 1.531441.acec 2 $\times$ 1.531441.zi 2 . The endomorphism algebra for each factor is:
|
- Endomorphism algebra over $\F_{3^{2}}$
The base change of $A$ to $\F_{3^{2}}$ is 1.9.ad 2 $\times$ 2.9.a_ao. The endomorphism algebra for each factor is: - 1.9.ad 2 : $\mathrm{M}_{2}($\(\Q(\sqrt{-3}) \)$)$
- 2.9.a_ao : \(\Q(\zeta_{8})\).
- Endomorphism algebra over $\F_{3^{3}}$
The base change of $A$ to $\F_{3^{3}}$ is 1.27.a 2 $\times$ 2.27.ae_i. The endomorphism algebra for each factor is: - 1.27.a 2 : $\mathrm{M}_{2}($\(\Q(\sqrt{-3}) \)$)$
- 2.27.ae_i : \(\Q(\zeta_{8})\).
- Endomorphism algebra over $\F_{3^{4}}$
The base change of $A$ to $\F_{3^{4}}$ is 1.81.ao 2 $\times$ 1.81.j 2 . The endomorphism algebra for each factor is: - 1.81.ao 2 : $\mathrm{M}_{2}($\(\Q(\sqrt{-2}) \)$)$
- 1.81.j 2 : $\mathrm{M}_{2}($\(\Q(\sqrt{-3}) \)$)$
- Endomorphism algebra over $\F_{3^{6}}$
The base change of $A$ to $\F_{3^{6}}$ is 1.729.cc 2 $\times$ 2.729.a_zi. The endomorphism algebra for each factor is: - 1.729.cc 2 : $\mathrm{M}_{2}(B)$, where $B$ is the quaternion algebra over \(\Q\) ramified at $3$ and $\infty$.
- 2.729.a_zi : \(\Q(\zeta_{8})\).
Base change
This is a primitive isogeny class.