Invariants
| Base field: | $\F_{37}$ |
| Dimension: | $2$ |
| L-polynomial: | $1 + 4 x + 46 x^{2} + 148 x^{3} + 1369 x^{4}$ |
| Frobenius angles: | $\pm0.402815902754$, $\pm0.716694991222$ |
| Angle rank: | $2$ (numerical) |
| Number field: | 4.0.48128.1 |
| Galois group: | $D_{4}$ |
| Jacobians: | $156$ |
| 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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $1568$ | $1981952$ | $2563455776$ | $3515412045824$ | $4807131410960928$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $42$ | $1446$ | $50610$ | $1875726$ | $69323002$ | $2565640758$ | $94933012482$ | $3512479812894$ | $129961727498442$ | $4808584354317766$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 156 curves (of which all are hyperelliptic):
- $y^2=x^6+3 x^5+21 x^4+23 x+30$
- $y^2=28 x^6+3 x^5+32 x^4+28 x^3+20 x^2+15 x+29$
- $y^2=7 x^6+18 x^5+12 x^4+9 x^3+15 x^2+8 x+32$
- $y^2=6 x^6+8 x^5+15 x^4+21 x^3+7 x^2+19 x+7$
- $y^2=30 x^6+11 x^5+36 x^4+7 x^3+17 x^2+27 x+4$
- $y^2=32 x^6+36 x^5+16 x^4+21 x^3+29 x^2+17 x+22$
- $y^2=21 x^6+24 x^5+21 x^4+3 x^3+21 x^2+9 x+29$
- $y^2=35 x^6+36 x^5+11 x^4+28 x^3+20 x^2+3 x+9$
- $y^2=13 x^6+17 x^4+16 x^3+24 x^2+29 x+36$
- $y^2=25 x^6+5 x^5+12 x^4+6 x^3+27 x+36$
- $y^2=25 x^6+23 x^5+17 x^4+10 x^3+31 x^2+2 x+8$
- $y^2=14 x^6+6 x^5+18 x^4+2 x^3+9 x^2+31 x+26$
- $y^2=34 x^6+3 x^5+6 x^4+22 x^3+36 x^2+30 x+17$
- $y^2=30 x^6+25 x^5+31 x^4+4 x^3+30 x^2+35 x+32$
- $y^2=9 x^6+33 x^5+24 x^4+27 x^3+12 x^2+4 x+34$
- $y^2=8 x^6+32 x^5+2 x^4+3 x^3+2 x^2+20 x+28$
- $y^2=9 x^6+22 x^5+30 x^4+4 x^3+8 x^2+20 x+21$
- $y^2=33 x^6+8 x^5+36 x^4+11 x^3+x^2+24 x+10$
- $y^2=3 x^6+10 x^5+27 x^4+25 x^3+27 x^2+21 x+21$
- $y^2=17 x^6+11 x^5+24 x^4+2 x^3+30 x^2+6 x+19$
- and 136 more
Decomposition and endomorphism algebra
All geometric endomorphisms are defined over $\F_{37}$.
Endomorphism algebra over $\F_{37}$| The endomorphism algebra of this simple isogeny class is 4.0.48128.1. |
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 |
|---|---|---|
| 2.37.ae_bu | $2$ | (not in LMFDB) |