Invariants
| Base field: | $\F_{73}$ |
| Dimension: | $2$ |
| L-polynomial: | $( 1 + 11 x + 73 x^{2} )^{2}$ |
| $1 + 22 x + 267 x^{2} + 1606 x^{3} + 5329 x^{4}$ | |
| Frobenius angles: | $\pm0.722612475433$, $\pm0.722612475433$ |
| Angle rank: | $1$ (numerical) |
| Jacobians: | $47$ |
| Cyclic group of points: | no |
| Non-cyclic primes: | $5, 17$ |
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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $7225$ | $28676025$ | $150497443600$ | $807030088475625$ | $4297494530644005625$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $96$ | $5380$ | $386862$ | $28418308$ | $2073008256$ | $151333458190$ | $11047411591872$ | $806460004164868$ | $58871586718976766$ | $4297625835989992900$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 47 curves (of which all are hyperelliptic):
- $y^2=32 x^6+x^5+40 x^4+32 x^3+34 x^2+2 x+69$
- $y^2=x^6+10 x^5+70 x^4+23 x^3+65 x^2+63 x+46$
- $y^2=62 x^6+17 x^5+19 x^4+8 x^3+x^2+14 x+28$
- $y^2=41 x^6+59 x^5+32 x^4+55 x^3+71 x^2+45 x+4$
- $y^2=16 x^6+32 x^5+45 x^4+18 x^3+45 x^2+32 x+16$
- $y^2=55 x^6+8 x^5+72 x^4+42 x^3+33 x^2+69 x+10$
- $y^2=5 x^6+5 x^3+11$
- $y^2=48 x^6+20 x^5+28 x^4+70 x^3+14 x^2+5 x+6$
- $y^2=3 x^6+9 x^5+11 x^4+23 x^3+34 x^2+16 x+1$
- $y^2=6 x^6+52 x^5+72 x^4+45 x^3+65 x^2+33 x+32$
- $y^2=47 x^6+64 x^5+60 x^4+58 x^3+38 x^2+34 x+18$
- $y^2=57 x^6+22 x^5+26 x^4+2 x^3+52 x^2+15 x+18$
- $y^2=18 x^6+38 x^5+63 x^4+9 x^3+59 x^2+19 x+71$
- $y^2=17 x^6+70 x^5+56 x^4+23 x^3+62 x^2+48 x+43$
- $y^2=25 x^6+3 x^5+23 x^4+18 x^3+55 x^2+54 x+16$
- $y^2=3 x^6+9 x^5+60 x^4+9 x^3+53 x^2+x+8$
- $y^2=44 x^6+57 x^5+23 x^4+72 x^3+65 x^2+8 x+14$
- $y^2=61 x^6+27 x^5+39 x^4+47 x^3+44 x^2+24 x+41$
- $y^2=51 x^6+63 x^5+4 x^4+41 x^3+55 x^2+1$
- $y^2=36 x^6+13 x^5+38 x^4+48 x^3+71 x^2+15 x+12$
- and 27 more
Decomposition and endomorphism algebra
All geometric endomorphisms are defined over $\F_{73}$.
Endomorphism algebra over $\F_{73}$| The isogeny class factors as 1.73.l 2 and its endomorphism algebra is $\mathrm{M}_{2}($\(\Q(\sqrt{-19}) \)$)$ |
Base change
This is a primitive isogeny class.