Invariants
Base field: | $\F_{449}$ |
Dimension: | $1$ |
L-polynomial: | $1 - 18 x + 449 x^{2}$ |
Frobenius angles: | $\pm0.360366829459$ |
Angle rank: | $1$ (numerical) |
Number field: | \(\Q(\sqrt{-23}) \) |
Galois group: | $C_2$ |
Jacobians: | $24$ |
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: | $1$ |
Slopes: | $[0, 1]$ |
Point counts
Point counts of the abelian variety
$r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
---|---|---|---|---|---|
$A(\F_{q^r})$ | $432$ | $202176$ | $90537264$ | $40643036928$ | $18248683536432$ |
$r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
---|---|---|---|---|---|---|---|---|---|---|
$C(\F_{q^r})$ | $432$ | $202176$ | $90537264$ | $40643036928$ | $18248683536432$ | $8193661866247104$ | $3678954249175624368$ | $1651850457833690569728$ | $741680855534513526799536$ | $333014704134426657813053376$ |
Jacobians and polarizations
This isogeny class contains the Jacobians of 24 curves (of which all are hyperelliptic), and hence is principally polarizable:
Decomposition and endomorphism algebra
All geometric endomorphisms are defined over $\F_{449}$.
Endomorphism algebra over $\F_{449}$The endomorphism algebra of this simple isogeny class is \(\Q(\sqrt{-23}) \). |
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 |
---|---|---|
1.449.s | $2$ | (not in LMFDB) |