Invariants
| Base field: | $\F_{73}$ |
| Dimension: | $2$ |
| L-polynomial: | $1 + x + 76 x^{2} + 73 x^{3} + 5329 x^{4}$ |
| Frobenius angles: | $\pm0.347407764109$, $\pm0.673975680429$ |
| Angle rank: | $2$ (numerical) |
| Number field: | 4.0.967114328.1 |
| Galois group: | $D_{4}$ |
| Jacobians: | $216$ |
| 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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $5480$ | $29219360$ | $151330353440$ | $806737763792000$ | $4297572928901759400$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $75$ | $5481$ | $389010$ | $28408017$ | $2073046075$ | $151332704814$ | $11047401309075$ | $806460154508193$ | $58871586680674050$ | $4297625832876756361$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 216 curves (of which all are hyperelliptic):
- $y^2=63 x^6+54 x^5+60 x^4+63 x^3+43 x^2+10 x+70$
- $y^2=11 x^6+11 x^5+32 x^4+5 x^3+52 x^2+57 x+47$
- $y^2=24 x^6+28 x^5+38 x^4+52 x^3+62 x^2+15 x+72$
- $y^2=29 x^6+63 x^5+5 x^4+51 x^3+68 x^2+54 x+34$
- $y^2=31 x^6+36 x^5+54 x^4+18 x^3+61 x^2+15 x+31$
- $y^2=62 x^6+6 x^5+48 x^4+32 x^3+4 x^2+10 x+25$
- $y^2=x^6+5 x^5+25 x^4+11 x^3+26 x^2+53 x+56$
- $y^2=58 x^6+x^4+28 x^3+51 x^2+69 x+13$
- $y^2=61 x^5+13 x^4+60 x^3+10 x^2+66 x+1$
- $y^2=44 x^6+28 x^5+71 x^4+9 x^3+36 x^2+44 x+49$
- $y^2=59 x^6+48 x^5+25 x^4+46 x^3+5 x^2+60 x+37$
- $y^2=13 x^6+6 x^5+33 x^4+49 x^3+13 x^2+29 x+4$
- $y^2=11 x^6+70 x^5+9 x^4+60 x^3+30 x^2+47 x+37$
- $y^2=21 x^6+67 x^5+25 x^4+32 x^3+9 x^2+6 x+6$
- $y^2=45 x^6+8 x^5+18 x^4+66 x^3+55 x^2+6 x+15$
- $y^2=52 x^6+22 x^5+55 x^3+39 x^2+43 x+21$
- $y^2=71 x^6+63 x^5+35 x^4+44 x^3+60 x^2+26 x+70$
- $y^2=23 x^6+70 x^5+52 x^4+72 x^3+32 x^2+41 x+11$
- $y^2=57 x^6+22 x^5+2 x^4+66 x^3+27 x^2+9 x+21$
- $y^2=15 x^6+54 x^5+21 x^4+27 x^3+40 x^2+41 x+23$
- and 196 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 4.0.967114328.1. |
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.ab_cy | $2$ | (not in LMFDB) |