Invariants
| Base field: | $\F_{73}$ |
| Dimension: | $2$ |
| L-polynomial: | $( 1 - 16 x + 73 x^{2} )( 1 + 16 x + 73 x^{2} )$ |
| $1 - 110 x^{2} + 5329 x^{4}$ | |
| Frobenius angles: | $\pm0.114200251220$, $\pm0.885799748780$ |
| Angle rank: | $1$ (numerical) |
| Jacobians: | $231$ |
| Cyclic group of points: | no |
| Non-cyclic primes: | $2, 3$ |
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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $5220$ | $27248400$ | $151334653860$ | $806378250240000$ | $4297625833443920100$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $74$ | $5110$ | $389018$ | $28395358$ | $2073071594$ | $151335081430$ | $11047398519098$ | $806460201328318$ | $58871586708267914$ | $4297625837184282550$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 231 curves (of which all are hyperelliptic):
- $y^2=27 x^6+6 x^5+41 x^4+22 x^3+39 x^2+37 x+56$
- $y^2=30 x^6+15 x^5+15 x^4+23 x^3+31 x^2+56 x+41$
- $y^2=4 x^6+2 x^5+2 x^4+42 x^3+9 x^2+61 x+59$
- $y^2=53 x^6+33 x^5+56 x^4+7 x^3+41 x^2+7 x+34$
- $y^2=46 x^6+19 x^5+61 x^4+35 x^3+59 x^2+35 x+24$
- $y^2=19 x^6+62 x^5+30 x^4+72 x^3+3 x^2+5 x+29$
- $y^2=14 x^6+49 x^5+26 x^4+71 x^3+69 x^2+41 x+3$
- $y^2=70 x^6+26 x^5+57 x^4+63 x^3+53 x^2+59 x+15$
- $y^2=5 x^6+13 x^5+37 x^4+40 x^3+48 x^2+48 x+21$
- $y^2=25 x^6+65 x^5+39 x^4+54 x^3+21 x^2+21 x+32$
- $y^2=9 x^6+46 x^5+4 x^4+2 x^3+41 x^2+69 x+19$
- $y^2=45 x^6+11 x^5+20 x^4+10 x^3+59 x^2+53 x+22$
- $y^2=3 x^6+15 x^5+29 x^4+59 x^2+54 x+26$
- $y^2=15 x^6+2 x^5+72 x^4+3 x^2+51 x+57$
- $y^2=5 x^6+18 x^5+27 x^4+60 x^3+38 x^2+69 x+35$
- $y^2=64 x^6+59 x^5+39 x^4+46 x^3+49 x^2+60 x+1$
- $y^2=49 x^6+46 x^5+57 x^4+32 x^3+61 x^2+40 x+53$
- $y^2=26 x^6+11 x^5+66 x^4+14 x^3+13 x^2+54 x+46$
- $y^2=31 x^6+66 x^5+28 x^4+59 x^3+31 x^2+11 x+71$
- $y^2=19 x^6+64 x^5+44 x^4+69 x^3+43 x^2+35 x$
- and 211 more
Decomposition and endomorphism algebra
All geometric endomorphisms are defined over $\F_{73^{2}}$.
Endomorphism algebra over $\F_{73}$| The isogeny class factors as 1.73.aq $\times$ 1.73.q 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 $\F_{73^{2}}$ is 1.5329.aeg 2 and its endomorphism algebra is $\mathrm{M}_{2}($\(\Q(\sqrt{-1}) \)$)$ |
Base change
This is a primitive isogeny class.