Invariants
| Base field: | $\F_{73}$ |
| Dimension: | $2$ |
| L-polynomial: | $( 1 - x + 73 x^{2} )( 1 + 11 x + 73 x^{2} )$ |
| $1 + 10 x + 135 x^{2} + 730 x^{3} + 5329 x^{4}$ | |
| Frobenius angles: | $\pm0.481361674224$, $\pm0.722612475433$ |
| Angle rank: | $2$ (numerical) |
| Jacobians: | $360$ |
| Cyclic group of points: | yes |
This isogeny class is not 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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $6205$ | $29318625$ | $151000213840$ | $806450559665625$ | $4297505700183121525$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $84$ | $5500$ | $388158$ | $28397908$ | $2073013644$ | $151334572750$ | $11047407704508$ | $806459997351268$ | $58871586469565454$ | $4297625836302227500$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 360 curves (of which all are hyperelliptic):
- $y^2=64 x^6+47 x^5+53 x^4+60 x^3+39 x^2+53 x+53$
- $y^2=9 x^6+28 x^5+65 x^4+5 x^3+45 x^2+54 x+50$
- $y^2=48 x^6+17 x^5+46 x^4+63 x^3+44 x^2+63 x+55$
- $y^2=57 x^6+9 x^5+25 x^4+49 x^3+23 x^2+36 x+55$
- $y^2=21 x^6+31 x^5+7 x^4+41 x^3+62 x^2+12 x+70$
- $y^2=37 x^6+60 x^5+19 x^4+19 x^3+55 x^2+31 x+23$
- $y^2=71 x^6+12 x^5+24 x^4+12 x^3+22 x^2+15 x+30$
- $y^2=67 x^6+64 x^5+7 x^4+3 x^3+28 x^2+2 x+54$
- $y^2=6 x^6+46 x^5+43 x^4+43 x^3+69 x^2+58 x+15$
- $y^2=25 x^6+10 x^5+61 x^4+65 x^3+7 x^2+50 x+6$
- $y^2=31 x^6+55 x^5+4 x^4+63 x^3+64 x^2+16 x+16$
- $y^2=54 x^6+29 x^5+8 x^4+16 x^3+23 x^2+63 x+64$
- $y^2=31 x^6+40 x^5+72 x^4+46 x^3+6 x^2+40 x+12$
- $y^2=13 x^6+59 x^5+63 x^4+36 x^3+13 x^2+18 x+25$
- $y^2=37 x^6+10 x^5+24 x^4+48 x^3+16 x^2+45 x+38$
- $y^2=10 x^6+36 x^5+61 x^4+49 x^3+19 x^2+71 x+36$
- $y^2=7 x^6+51 x^5+60 x^4+12 x^3+60 x^2+61 x+2$
- $y^2=65 x^6+41 x^5+52 x^4+31 x^3+49 x^2+49 x+34$
- $y^2=46 x^6+12 x^5+11 x^4+64 x^3+32 x^2+49 x+61$
- $y^2=25 x^6+7 x^5+3 x^4+10 x^3+72 x^2+67 x+3$
- and 340 more
Decomposition and endomorphism algebra
All geometric endomorphisms are defined over $\F_{73}$.
Endomorphism algebra over $\F_{73}$| The isogeny class factors as 1.73.ab $\times$ 1.73.l and its endomorphism algebra is a direct product of the endomorphism algebras for each isotypic factor. The endomorphism algebra for each factor is: |
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.am_gb | $2$ | (not in LMFDB) |
| 2.73.ak_ff | $2$ | (not in LMFDB) |
| 2.73.m_gb | $2$ | (not in LMFDB) |