Invariants
| Base field: | $\F_{73}$ |
| Dimension: | $2$ |
| L-polynomial: | $1 - 3 x - 3 x^{2} - 219 x^{3} + 5329 x^{4}$ |
| Frobenius angles: | $\pm0.200826130404$, $\pm0.717735772651$ |
| Angle rank: | $2$ (numerical) |
| Number field: | 4.0.445525.1 |
| Galois group: | $D_{4}$ |
| Jacobians: | $182$ |
| Cyclic group of points: | yes |
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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $5105$ | $28327645$ | $151057976105$ | $806985061681525$ | $4297762679171552000$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $71$ | $5315$ | $388307$ | $28416723$ | $2073137606$ | $151334403995$ | $11047407086507$ | $806460034100803$ | $58871586247729751$ | $4297625829077835950$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 182 curves (of which all are hyperelliptic):
- $y^2=19 x^6+65 x^5+44 x^4+67 x^3+55 x^2+36 x+66$
- $y^2=44 x^6+25 x^5+3 x^4+45 x^3+2 x^2+31 x+21$
- $y^2=21 x^6+35 x^5+19 x^4+57 x^3+71 x^2+6 x+59$
- $y^2=36 x^6+35 x^5+14 x^4+26 x^3+34 x^2+10 x+26$
- $y^2=32 x^6+62 x^5+54 x^4+69 x^3+41 x^2+18 x+36$
- $y^2=69 x^6+14 x^5+11 x^4+41 x^3+67 x^2+11 x+13$
- $y^2=28 x^6+31 x^5+x^4+30 x^3+42 x^2+62 x+19$
- $y^2=10 x^6+22 x^5+23 x^4+67 x^3+25 x^2+4 x+42$
- $y^2=44 x^6+70 x^5+10 x^4+55 x^3+52 x^2+69 x+7$
- $y^2=12 x^6+32 x^5+41 x^4+9 x^3+46 x^2+37 x+38$
- $y^2=16 x^6+42 x^5+5 x^4+9 x^3+15 x^2+x+43$
- $y^2=53 x^6+7 x^5+50 x^4+51 x^3+46 x^2+64 x+11$
- $y^2=55 x^6+36 x^5+7 x^4+14 x^3+27 x^2+12 x+37$
- $y^2=26 x^6+4 x^5+12 x^4+43 x^3+29 x+8$
- $y^2=40 x^6+15 x^5+68 x^4+26 x^2+71 x+71$
- $y^2=55 x^6+10 x^5+52 x^4+45 x^3+x^2+63 x+44$
- $y^2=42 x^6+48 x^5+62 x^4+25 x^3+34 x^2+53 x+44$
- $y^2=21 x^6+65 x^5+41 x^4+71 x^3+4 x^2+48 x+26$
- $y^2=69 x^6+12 x^5+23 x^4+51 x^3+45 x^2+39 x+49$
- $y^2=64 x^6+68 x^5+9 x^4+21 x^3+11 x^2+52 x+15$
- and 162 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 4.0.445525.1. |
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.d_ad | $2$ | (not in LMFDB) |