Invariants
| Base field: | $\F_{47}$ |
| Dimension: | $2$ |
| L-polynomial: | $1 - 13 x + 97 x^{2} - 611 x^{3} + 2209 x^{4}$ |
| Frobenius angles: | $\pm0.118953268719$, $\pm0.494543759347$ |
| Angle rank: | $2$ (numerical) |
| Number field: | 4.0.116072141.1 |
| Galois group: | $D_{4}$ |
| Jacobians: | $62$ |
| Isomorphism classes: | 62 |
| Cyclic group of points: | yes |
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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $1683$ | $4932873$ | $10753769169$ | $23788153567629$ | $52600575710274768$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $35$ | $2235$ | $103577$ | $4874939$ | $229351300$ | $10779551055$ | $506624522215$ | $23811286640899$ | $1119130528090649$ | $52599133067549550$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 62 curves (of which all are hyperelliptic):
- $y^2=32 x^6+30 x^5+37 x^4+9 x^3+11 x^2+45 x$
- $y^2=13 x^6+16 x^5+40 x^4+24 x^3+18 x^2+29 x+23$
- $y^2=41 x^6+22 x^5+10 x^4+6 x^3+11 x^2+6 x+15$
- $y^2=40 x^6+27 x^5+45 x^4+17 x^3+3 x^2+4 x+18$
- $y^2=27 x^6+38 x^5+41 x^4+10 x^3+30 x^2+21 x$
- $y^2=43 x^6+7 x^5+3 x^4+45 x^3+5 x^2+28 x+17$
- $y^2=35 x^6+42 x^5+17 x^4+30 x^3+44 x^2+36 x+42$
- $y^2=40 x^6+18 x^5+11 x^4+28 x^3+37 x^2+31 x+19$
- $y^2=15 x^6+18 x^5+4 x^4+21 x^3+18 x^2+8 x+45$
- $y^2=33 x^6+41 x^5+3 x^4+13 x^3+42 x^2+15$
- $y^2=42 x^6+36 x^5+32 x^4+46 x^3+40 x^2+18 x+7$
- $y^2=46 x^6+9 x^5+23 x^4+6 x^3+44 x^2+13 x+9$
- $y^2=44 x^6+39 x^5+39 x^4+5 x^3+44 x^2+19 x+46$
- $y^2=40 x^6+40 x^5+42 x^4+19 x^3+44 x+5$
- $y^2=11 x^6+44 x^5+18 x^4+45 x^3+10 x^2+16 x+6$
- $y^2=25 x^6+24 x^5+3 x^4+20 x^3+25 x^2+2 x+21$
- $y^2=41 x^6+17 x^5+35 x^4+3 x^3+36 x^2+11 x+23$
- $y^2=43 x^6+36 x^5+26 x^4+41 x^3+17 x^2+6 x+17$
- $y^2=23 x^6+38 x^5+26 x^4+36 x^3+11 x^2+39 x+29$
- $y^2=22 x^5+29 x^4+4 x^3+25 x^2+13 x+25$
- and 42 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 4.0.116072141.1. |
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.n_dt | $2$ | (not in LMFDB) |