Invariants
| Base field: | $\F_{47}$ |
| Dimension: | $2$ |
| L-polynomial: | $1 + 4 x + 46 x^{2} + 188 x^{3} + 2209 x^{4}$ |
| Frobenius angles: | $\pm0.375903779864$, $\pm0.734473710534$ |
| Angle rank: | $2$ (numerical) |
| Number field: | 4.0.175253.1 |
| Galois group: | $D_{4}$ |
| Jacobians: | $276$ |
| 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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $2448$ | $5052672$ | $10787006736$ | $23832200761344$ | $52589097913728528$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $52$ | $2286$ | $103900$ | $4883966$ | $229301252$ | $10779011118$ | $506624976812$ | $23811287392894$ | $1119130519835092$ | $52599132117379566$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 276 curves (of which all are hyperelliptic):
- $y^2=41 x^6+30 x^5+25 x^4+8 x^3+24 x^2+2 x+11$
- $y^2=45 x^6+39 x^5+x^4+23 x^3+46 x^2+x+42$
- $y^2=19 x^6+20 x^5+3 x^4+45 x^3+43 x^2+35 x+16$
- $y^2=30 x^6+39 x^5+45 x^4+32 x^3+42 x^2+43 x+10$
- $y^2=43 x^6+11 x^5+34 x^4+7 x^2+34 x+45$
- $y^2=34 x^6+10 x^5+30 x^4+10 x^3+10 x^2+9 x+38$
- $y^2=46 x^6+12 x^5+41 x^4+32 x^3+33 x^2+32$
- $y^2=42 x^6+36 x^5+42 x^4+8 x^3+41 x^2+28 x+27$
- $y^2=7 x^6+20 x^5+23 x^4+5 x^3+20 x^2+30 x+35$
- $y^2=19 x^6+6 x^5+23 x^4+29 x^3+30 x^2+37 x$
- $y^2=6 x^6+46 x^4+29 x^3+4 x^2+39 x+37$
- $y^2=43 x^6+21 x^5+11 x^4+13 x^3+5 x^2+33 x+26$
- $y^2=x^6+43 x^5+21 x^4+2 x^3+31 x^2+37 x+11$
- $y^2=37 x^6+35 x^5+22 x^4+12 x^3+33 x^2+8 x+3$
- $y^2=44 x^6+38 x^5+14 x^4+21 x^3+10 x^2+29 x+10$
- $y^2=30 x^6+9 x^5+6 x^4+21 x^3+28 x^2+11 x+39$
- $y^2=13 x^6+6 x^5+27 x^4+42 x^3+9 x^2+46 x+15$
- $y^2=18 x^6+7 x^5+40 x^4+14 x^3+5 x^2+8 x+14$
- $y^2=18 x^6+13 x^5+14 x^4+23 x^3+17 x^2+28 x+12$
- $y^2=23 x^6+24 x^5+2 x^4+10 x^3+42 x^2+33 x+8$
- and 256 more
Decomposition and endomorphism algebra
All geometric endomorphisms are defined over $\F_{47}$.
Endomorphism algebra over $\F_{47}$| The endomorphism algebra of this simple isogeny class is 4.0.175253.1. |
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 |
|---|---|---|
| 2.47.ae_bu | $2$ | (not in LMFDB) |