Invariants
| Base field: | $\F_{73}$ |
| Dimension: | $2$ |
| L-polynomial: | $1 + 17 x + 180 x^{2} + 1241 x^{3} + 5329 x^{4}$ |
| Frobenius angles: | $\pm0.543262505714$, $\pm0.829134435448$ |
| Angle rank: | $2$ (numerical) |
| Number field: | 4.0.395352.1 |
| Galois group: | $D_{4}$ |
| Jacobians: | $112$ |
| Cyclic group of points: | no |
| Non-cyclic primes: | $2, 3$ |
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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $6768$ | $28777536$ | $151123402944$ | $806366012334336$ | $4297575115624228848$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $91$ | $5401$ | $388474$ | $28394929$ | $2073047131$ | $151335535246$ | $11047387680595$ | $806460088550113$ | $58871587221994858$ | $4297625828047269721$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 112 curves (of which all are hyperelliptic):
- $y^2=31 x^6+43 x^5+46 x^4+40 x^3+46 x^2+16 x+40$
- $y^2=38 x^6+36 x^5+59 x^4+27 x^3+56 x^2+3 x+36$
- $y^2=61 x^6+9 x^5+5 x^4+48 x^3+19 x^2+56 x+7$
- $y^2=70 x^6+70 x^5+24 x^4+53 x^3+20 x^2+53 x+24$
- $y^2=16 x^6+43 x^4+66 x^3+18 x^2+61 x+52$
- $y^2=13 x^6+5 x^5+46 x^4+50 x^3+69 x^2+45 x+61$
- $y^2=x^6+29 x^5+62 x^4+69 x^3+25 x^2+62 x+38$
- $y^2=24 x^5+38 x^4+4 x^3+71 x^2+54 x+23$
- $y^2=8 x^6+3 x^5+12 x^4+18 x^3+11 x^2+12 x+42$
- $y^2=11 x^5+13 x^4+32 x^3+15 x^2+45 x+69$
- $y^2=32 x^6+31 x^5+72 x^4+4 x^3+45 x^2+5 x+25$
- $y^2=47 x^6+13 x^5+56 x^4+61 x^3+71 x^2+17 x+22$
- $y^2=61 x^6+57 x^5+30 x^4+30 x^3+72 x^2+62 x+6$
- $y^2=55 x^6+68 x^5+13 x^4+41 x^3+38 x^2+17 x+61$
- $y^2=64 x^6+42 x^5+48 x^4+58 x^3+59 x^2+11 x+15$
- $y^2=69 x^6+55 x^5+53 x^4+64 x^3+46 x^2+23 x+3$
- $y^2=7 x^6+42 x^5+46 x^4+52 x^3+36 x^2+58 x+14$
- $y^2=4 x^6+38 x^5+28 x^4+37 x^3+47 x^2+17 x+48$
- $y^2=6 x^6+2 x^5+8 x^4+66 x^3+34 x^2+15 x+27$
- $y^2=56 x^6+30 x^5+61 x^4+63 x^3+34 x^2+22 x+7$
- and 92 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 4.0.395352.1. |
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.ar_gy | $2$ | (not in LMFDB) |