Invariants
| Base field: | $\F_{73}$ |
| Dimension: | $2$ |
| L-polynomial: | $( 1 - 16 x + 73 x^{2} )( 1 + 6 x + 73 x^{2} )$ |
| $1 - 10 x + 50 x^{2} - 730 x^{3} + 5329 x^{4}$ | |
| Frobenius angles: | $\pm0.114200251220$, $\pm0.614200251220$ |
| Angle rank: | $1$ (numerical) |
| Jacobians: | $254$ |
| Cyclic group of points: | no |
| Non-cyclic primes: | $2$ |
This isogeny class is not 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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $4640$ | $28396800$ | $150678213920$ | $806378250240000$ | $4297851696788775200$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $64$ | $5330$ | $387328$ | $28395358$ | $2073180544$ | $151334226290$ | $11047399972288$ | $806460201328318$ | $58871587149356224$ | $4297625829703557650$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 254 curves (of which all are hyperelliptic):
- $y^2=24 x^6+65 x^5+26 x^4+22 x^3+53 x^2+48 x+59$
- $y^2=21 x^6+5 x^5+39 x^4+72 x^3+10 x^2+9 x+55$
- $y^2=19 x^6+70 x^5+53 x^4+45 x^3+56 x^2+43 x+37$
- $y^2=28 x^6+6 x^5+49 x^4+15 x^3+41 x^2+3 x+37$
- $y^2=65 x^6+53 x^4+65 x^3+44 x^2+65 x+7$
- $y^2=69 x^6+20 x^5+36 x^4+5 x^3+34 x^2+62 x+21$
- $y^2=32 x^6+56 x^5+48 x^4+4 x^2+17 x+4$
- $y^2=58 x^6+70 x^5+70 x^4+33 x^3+71 x^2+40 x+57$
- $y^2=17 x^6+20 x^5+47 x^4+39 x^3+4 x^2+45 x+53$
- $y^2=33 x^6+13 x^5+68 x^4+32 x^3+39 x^2+21$
- $y^2=36 x^6+52 x^5+7 x^4+28 x^3+67 x^2+30 x+32$
- $y^2=16 x^6+3 x^5+22 x^4+23 x^3+68 x^2+26 x+49$
- $y^2=7 x^6+60 x^5+6 x^4+32 x^3+6 x^2+60 x+7$
- $y^2=32 x^6+28 x^5+59 x^4+32 x^3+5 x^2+16 x+26$
- $y^2=49 x^6+47 x^5+56 x^4+53 x^3+20 x^2+42 x+67$
- $y^2=2 x^6+13 x^5+6 x^4+29 x^3+19 x^2+28 x+13$
- $y^2=12 x^6+19 x^5+17 x^4+69 x^3+4 x^2+40 x+72$
- $y^2=42 x^6+2 x^5+13 x^4+9 x^3+31 x^2+52 x+47$
- $y^2=44 x^6+52 x^5+41 x^4+44 x^3+57 x^2+40 x+2$
- $y^2=51 x^6+43 x^5+46 x^4+37 x^3+10 x^2+67 x+48$
- and 234 more
Decomposition and endomorphism algebra
All geometric endomorphisms are defined over $\F_{73^{4}}$.
Endomorphism algebra over $\F_{73}$| The isogeny class factors as 1.73.aq $\times$ 1.73.g 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 $\F_{73^{4}}$ is 1.28398241.acdm 2 and its endomorphism algebra is $\mathrm{M}_{2}($\(\Q(\sqrt{-1}) \)$)$ |
- Endomorphism algebra over $\F_{73^{2}}$
The base change of $A$ to $\F_{73^{2}}$ is 1.5329.aeg $\times$ 1.5329.eg. The endomorphism algebra for each factor is:
Base change
This is a primitive isogeny class.