Invariants
| Base field: | $\F_{73}$ |
| Dimension: | $2$ |
| L-polynomial: | $( 1 - 13 x + 73 x^{2} )( 1 + 11 x + 73 x^{2} )$ |
| $1 - 2 x + 3 x^{2} - 146 x^{3} + 5329 x^{4}$ | |
| Frobenius angles: | $\pm0.224822766824$, $\pm0.722612475433$ |
| Angle rank: | $2$ (numerical) |
| Jacobians: | $384$ |
| Cyclic group of points: | yes |
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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $5185$ | $28418985$ | $151167803920$ | $807032815670025$ | $4297734787679153425$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $72$ | $5332$ | $388590$ | $28418404$ | $2073124152$ | $151334197774$ | $11047403528856$ | $806460002229316$ | $58871586229664190$ | $4297625829898730932$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 384 curves (of which all are hyperelliptic):
- $y^2=13 x^6+12 x^5+32 x^4+45 x^3+67 x^2+70 x+20$
- $y^2=62 x^6+64 x^5+67 x^4+12 x^3+21 x^2+53 x+36$
- $y^2=51 x^6+64 x^5+60 x^4+18 x^3+71 x^2+56 x+22$
- $y^2=37 x^6+68 x^5+6 x^4+58 x^3+28 x^2+2 x+50$
- $y^2=45 x^6+26 x^5+12 x^4+29 x^3+49 x^2+59 x+22$
- $y^2=67 x^6+67 x^5+7 x^4+72 x^3+43 x^2+6 x+16$
- $y^2=63 x^6+22 x^5+32 x^4+30 x^3+63 x^2+2 x+12$
- $y^2=50 x^6+39 x^5+46 x^4+22 x^3+61 x^2+3 x+57$
- $y^2=60 x^6+70 x^5+50 x^4+42 x^3+23 x^2+70 x+13$
- $y^2=14 x^6+70 x^5+54 x^4+8 x^3+60 x^2+9 x+52$
- $y^2=44 x^6+3 x^5+53 x^4+52 x^3+66 x^2+15 x+2$
- $y^2=17 x^6+x^5+13 x^4+27 x^3+57 x^2+8 x+35$
- $y^2=70 x^6+63 x^5+12 x^4+24 x^3+11 x^2+55 x+1$
- $y^2=50 x^6+28 x^5+20 x^4+64 x^3+11 x^2+64 x+29$
- $y^2=60 x^6+21 x^5+21 x^4+15 x^3+32 x^2+3 x+7$
- $y^2=10 x^6+32 x^5+70 x^4+17 x^3+7 x^2+18 x+38$
- $y^2=65 x^6+10 x^5+43 x^4+30 x^3+46 x^2+19 x+67$
- $y^2=41 x^6+34 x^5+52 x^4+43 x^3+55 x^2+70 x+2$
- $y^2=70 x^6+36 x^5+20 x^4+42 x^3+55 x^2+39 x+72$
- $y^2=67 x^6+10 x^5+69 x^4+7 x^3+63 x^2+26 x+9$
- and 364 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.an $\times$ 1.73.l and its endomorphism algebra is a direct product of the endomorphism algebras for each isotypic factor. The endomorphism algebra for each factor is: |
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 |
|---|---|---|
| 2.73.ay_ld | $2$ | (not in LMFDB) |
| 2.73.c_d | $2$ | (not in LMFDB) |
| 2.73.y_ld | $2$ | (not in LMFDB) |