Invariants
| Base field: | $\F_{73}$ |
| Dimension: | $2$ |
| L-polynomial: | $1 - 8 x + 130 x^{2} - 584 x^{3} + 5329 x^{4}$ |
| Frobenius angles: | $\pm0.308828068537$, $\pm0.530911910758$ |
| Angle rank: | $2$ (numerical) |
| Number field: | 4.0.919808.1 |
| Galois group: | $D_{4}$ |
| Jacobians: | $150$ |
| 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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $4868$ | $29461136$ | $151667568644$ | $806403615297536$ | $4297687843032273348$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $66$ | $5526$ | $389874$ | $28396254$ | $2073101506$ | $151334179446$ | $11047388533170$ | $806460046159038$ | $58871587453800258$ | $4297625836031221846$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 150 curves (of which all are hyperelliptic):
- $y^2=53 x^6+65 x^5+35 x^4+32 x^3+33 x^2+50 x+2$
- $y^2=45 x^6+24 x^5+8 x^4+11 x^3+18 x^2+49 x+44$
- $y^2=10 x^6+12 x^5+48 x^4+65 x^3+46 x^2+60 x+21$
- $y^2=50 x^6+44 x^5+69 x^4+55 x^3+34 x^2+56 x+53$
- $y^2=14 x^6+70 x^5+33 x^4+38 x^3+22 x^2+72 x+17$
- $y^2=67 x^6+51 x^5+36 x^4+24 x^3+56 x^2+6 x+25$
- $y^2=7 x^6+18 x^5+46 x^4+62 x^3+16 x^2+17 x+14$
- $y^2=34 x^6+16 x^5+41 x^4+69 x^3+14 x^2+18 x+56$
- $y^2=5 x^6+42 x^5+2 x^4+23 x^3+31 x^2+26 x+18$
- $y^2=31 x^6+24 x^5+71 x^4+10 x^3+48 x^2+12 x+65$
- $y^2=17 x^6+28 x^5+71 x^4+32 x^3+35 x^2+60 x+11$
- $y^2=2 x^6+41 x^5+11 x^4+60 x^3+45 x^2+40 x+60$
- $y^2=52 x^6+31 x^5+18 x^4+6 x^3+x^2+65 x+26$
- $y^2=72 x^6+28 x^5+51 x^4+42 x^3+34 x^2+72 x+39$
- $y^2=48 x^6+36 x^5+6 x^4+27 x^3+52 x^2+26 x+39$
- $y^2=25 x^6+28 x^5+66 x^4+59 x^3+44 x^2+70 x+55$
- $y^2=30 x^6+13 x^5+23 x^4+35 x^3+24 x^2+37 x+58$
- $y^2=14 x^6+36 x^5+61 x^4+42 x^3+22 x^2+44 x+66$
- $y^2=68 x^6+60 x^5+34 x^4+13 x^3+27 x^2+56 x+24$
- $y^2=13 x^6+52 x^5+7 x^4+30 x^3+53 x^2+7 x+68$
- and 130 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 4.0.919808.1. |
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.i_fa | $2$ | (not in LMFDB) |