Properties

Label 2.625.adp_fbb
Base field $\F_{5^{4}}$
Dimension $2$
$p$-rank $2$
Ordinary yes
Supersingular no
Simple yes
Geometrically simple yes
Primitive yes
Principally polarizable yes
Contains a Jacobian yes

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Invariants

Base field:  $\F_{5^{4}}$
Dimension:  $2$
L-polynomial:  $1 - 93 x + 3407 x^{2} - 58125 x^{3} + 390625 x^{4}$
Frobenius angles:  $\pm0.0701326688218$, $\pm0.154721810855$
Angle rank:  $2$ (numerical)
Number field:  4.0.28730709.1
Galois group:  $D_{4}$

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:  $2$
Slopes:  $[0, 0, 1, 1]$

Point counts

Point counts of the abelian variety

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $335815$ $151872669565$ $59597765711573215$ $23283032028056573811525$ $9094947586633456223306249200$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $533$ $388791$ $244112447$ $152587678699$ $95367437606018$ $59604645131099871$ $37252902996065174867$ $23283064365669065071699$ $14551915228372436039436953$ $9094947017729366942485963326$

Jacobians and polarizations

This isogeny class contains a Jacobian, and hence is principally polarizable.

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{5^{4}}$.

Endomorphism algebra over $\F_{5^{4}}$
The endomorphism algebra of this simple isogeny class is 4.0.28730709.1.

Base change

This is a primitive isogeny class.

Twists

Below is a list of all twists of this isogeny class.

TwistExtension degreeCommon base change
2.625.dp_fbb$2$(not in LMFDB)