Invariants
| Base field: | $\F_{73}$ |
| Dimension: | $2$ |
| L-polynomial: | $1 - 16 x + 190 x^{2} - 1168 x^{3} + 5329 x^{4}$ |
| Frobenius angles: | $\pm0.239577523273$, $\pm0.433808068281$ |
| Angle rank: | $2$ (numerical) |
| Number field: | 4.0.3725.1 |
| Galois group: | $D_{4}$ |
| Jacobians: | $206$ |
| Cyclic group of points: | no |
| Non-cyclic primes: | $2$ |
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: | $2$ |
| Slopes: | $[0, 0, 1, 1]$ |
Point counts
Point counts of the abelian variety
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $4336$ | $29068544$ | $151926888304$ | $806556286078976$ | $4297616507507407216$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $58$ | $5454$ | $390538$ | $28401630$ | $2073067098$ | $151334625198$ | $11047401612970$ | $806460042297534$ | $58871585816771194$ | $4297625826350816014$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 206 curves (of which all are hyperelliptic):
- $y^2=28 x^6+48 x^5+16 x^4+x^3+71 x^2+3 x$
- $y^2=64 x^6+60 x^5+71 x^4+54 x^3+11 x^2+59 x+20$
- $y^2=16 x^6+15 x^5+23 x^4+48 x^2+52 x+9$
- $y^2=72 x^6+57 x^5+31 x^4+2 x^3+42 x^2+24 x+33$
- $y^2=51 x^6+7 x^5+70 x^4+45 x^3+72 x^2+70 x+45$
- $y^2=47 x^6+49 x^5+48 x^4+53 x^3+8 x^2+54 x+63$
- $y^2=37 x^6+17 x^4+14 x^3+29 x^2+62 x+11$
- $y^2=17 x^6+67 x^5+64 x^4+43 x^3+17 x^2+15 x+32$
- $y^2=51 x^6+27 x^5+59 x^4+64 x^3+31 x^2+31 x+39$
- $y^2=18 x^6+x^4+8 x^3+20 x^2+55 x+43$
- $y^2=62 x^6+65 x^5+54 x^4+25 x^3+36 x^2+23 x+21$
- $y^2=7 x^6+63 x^5+10 x^4+46 x^3+69 x^2+17 x+30$
- $y^2=66 x^6+56 x^5+35 x^4+46 x^3+18 x^2+71 x+66$
- $y^2=47 x^6+41 x^5+26 x^4+23 x^3+4 x^2+7 x+15$
- $y^2=58 x^6+60 x^5+40 x^4+10 x^3+50 x^2+28 x+53$
- $y^2=45 x^6+48 x^5+33 x^4+12 x^3+47 x^2+54 x+52$
- $y^2=66 x^6+19 x^5+6 x^4+35 x^3+67 x^2+11 x+28$
- $y^2=60 x^6+3 x^5+48 x^4+17 x^3+48 x^2+38 x+22$
- $y^2=60 x^6+7 x^5+49 x^4+30 x^3+46 x^2+11 x+46$
- $y^2=6 x^6+12 x^5+30 x^4+60 x^3+37 x^2+7 x+28$
- and 186 more
Decomposition and endomorphism algebra
All geometric endomorphisms are defined over $\F_{73}$.
Endomorphism algebra over $\F_{73}$| The endomorphism algebra of this simple isogeny class is 4.0.3725.1. |
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.q_hi | $2$ | (not in LMFDB) |