Invariants
Base field: | $\F_{3^{4}}$ |
Dimension: | $2$ |
L-polynomial: | $( 1 - 9 x )^{2}( 1 - 13 x + 81 x^{2} )$ |
$1 - 31 x + 396 x^{2} - 2511 x^{3} + 6561 x^{4}$ | |
Frobenius angles: | $0$, $0$, $\pm0.243120792737$ |
Angle rank: | $1$ (numerical) |
Jacobians: | $0$ |
This isogeny class is not simple, primitive, not ordinary, and not supersingular. It is principally polarizable.
Newton polygon
$p$-rank: | $1$ |
Slopes: | $[0, 1/2, 1/2, 1]$ |
Point counts
Point counts of the abelian variety
$r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
---|---|---|---|---|---|
$A(\F_{q^r})$ | $4416$ | $41952000$ | $282165601536$ | $1853017994112000$ | $12157574551206148416$ |
Point counts of the (virtual) curve
$r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
---|---|---|---|---|---|---|---|---|---|---|
$C(\F_{q^r})$ | $51$ | $6393$ | $530946$ | $43046673$ | $3486758331$ | $282428611038$ | $22876777221531$ | $1853020017948513$ | $150094633878696546$ | $12157665450587960073$ |
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 $\F_{3^{4}}$.
Endomorphism algebra over $\F_{3^{4}}$The isogeny class factors as 1.81.as $\times$ 1.81.an and its endomorphism algebra is a direct product of the endomorphism algebras for each isotypic factor. The endomorphism algebra for each factor is:
|
Base change
This is a primitive isogeny class.