Invariants
Base field: | $\F_{3}$ |
Dimension: | $4$ |
L-polynomial: | $( 1 - 3 x + 3 x^{2} )( 1 - 2 x + 3 x^{2} )( 1 - 2 x + x^{2} - 6 x^{3} + 9 x^{4} )$ |
$1 - 7 x + 23 x^{2} - 50 x^{3} + 90 x^{4} - 150 x^{5} + 207 x^{6} - 189 x^{7} + 81 x^{8}$ | |
Frobenius angles: | $\pm0.0292466093486$, $\pm0.166666666667$, $\pm0.304086723985$, $\pm0.637420057318$ |
Angle rank: | $1$ (numerical) |
Isomorphism classes: | 4 |
This isogeny class is not simple, primitive, not ordinary, and not supersingular. It is principally polarizable.
Newton polygon
$p$-rank: | $3$ |
Slopes: | $[0, 0, 0, 1/2, 1/2, 1, 1, 1]$ |
Point counts
Point counts of the abelian variety
$r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
---|---|---|---|---|---|
$A(\F_{q^r})$ | $6$ | $4788$ | $344736$ | $48301344$ | $3824938986$ |
Point counts of the (virtual) curve
$r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
---|---|---|---|---|---|---|---|---|---|---|
$C(\F_{q^r})$ | $-3$ | $7$ | $18$ | $91$ | $267$ | $646$ | $2097$ | $6643$ | $19494$ | $58807$ |
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 $\F_{3^{6}}$.
Endomorphism algebra over $\F_{3}$The isogeny class factors as 1.3.ad $\times$ 1.3.ac $\times$ 2.3.ac_b 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 $\F_{3^{6}}$ is 1.729.abu 3 $\times$ 1.729.cc. 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 $\times$ 1.9.c $\times$ 2.9.ac_af. The endomorphism algebra for each factor is: - Endomorphism algebra over $\F_{3^{3}}$
The base change of $A$ to $\F_{3^{3}}$ is 1.27.ak 2 $\times$ 1.27.a $\times$ 1.27.k. The endomorphism algebra for each factor is: - 1.27.ak 2 : $\mathrm{M}_{2}($\(\Q(\sqrt{-2}) \)$)$
- 1.27.a : \(\Q(\sqrt{-3}) \).
- 1.27.k : \(\Q(\sqrt{-2}) \).
Base change
This is a primitive isogeny class.