Invariants
| Base field: | $\F_{73}$ |
| Dimension: | $2$ |
| L-polynomial: | $1 + 2 x - 53 x^{2} + 146 x^{3} + 5329 x^{4}$ |
| Frobenius angles: | $\pm0.220712100854$, $\pm0.846613691452$ |
| Angle rank: | $2$ (numerical) |
| Number field: | 4.0.478784.4 |
| Galois group: | $D_{4}$ |
| Jacobians: | $189$ |
| Cyclic group of points: | no |
| Non-cyclic primes: | $5$ |
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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $5425$ | $27824825$ | $151632308800$ | $806848276075625$ | $4297664308361160625$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $76$ | $5220$ | $389782$ | $28411908$ | $2073090156$ | $151335388110$ | $11047391112652$ | $806460092747268$ | $58871586045477286$ | $4297625825964360100$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 189 curves (of which all are hyperelliptic):
- $y^2=35 x^6+7 x^5+9 x^4+2 x^3+43 x^2+19 x+64$
- $y^2=72 x^6+46 x^5+24 x^4+58 x^3+17 x^2+30 x+27$
- $y^2=32 x^6+26 x^5+60 x^4+49 x^3+70 x^2+33 x+24$
- $y^2=50 x^6+38 x^5+50 x^4+8 x^3+60 x^2+19 x+40$
- $y^2=14 x^6+52 x^5+56 x^4+70 x^3+66 x^2+67 x+57$
- $y^2=19 x^6+50 x^5+65 x^4+63 x^3+12 x^2+25 x+47$
- $y^2=6 x^6+29 x^5+2 x^4+36 x^3+41 x^2+12 x+31$
- $y^2=53 x^6+29 x^5+14 x^4+19 x^3+18 x^2+48 x+42$
- $y^2=36 x^6+50 x^5+44 x^4+17 x^3+11 x^2+55 x+42$
- $y^2=19 x^6+71 x^5+3 x^4+36 x^3+17 x^2+55 x+64$
- $y^2=65 x^6+4 x^4+25 x^3+48 x^2+3 x+60$
- $y^2=27 x^6+54 x^5+20 x^4+63 x^3+45 x^2+42 x+51$
- $y^2=53 x^6+15 x^5+7 x^4+10 x^3+63 x^2+51 x+27$
- $y^2=24 x^6+44 x^5+40 x^4+60 x^3+17 x^2+29 x+28$
- $y^2=65 x^6+63 x^5+26 x^4+38 x^3+39 x^2+66 x+11$
- $y^2=9 x^6+22 x^5+49 x^4+35 x^3+54 x^2+54 x+42$
- $y^2=33 x^6+68 x^5+49 x^4+71 x^3+13 x^2+48 x+57$
- $y^2=68 x^6+22 x^5+5 x^4+38 x^3+55 x^2+43 x+66$
- $y^2=29 x^6+37 x^5+59 x^4+32 x^3+20 x^2+69 x+20$
- $y^2=56 x^6+6 x^5+39 x^4+16 x^3+15 x^2+5 x+16$
- and 169 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 4.0.478784.4. |
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.ac_acb | $2$ | (not in LMFDB) |