Invariants
| Base field: | $\F_{59}$ |
| Dimension: | $2$ |
| L-polynomial: | $1 + 90 x^{2} + 3481 x^{4}$ |
| Frobenius angles: | $\pm0.388066268525$, $\pm0.611933731475$ |
| Angle rank: | $1$ (numerical) |
| Number field: | \(\Q(\sqrt{7}, \sqrt{-13})\) |
| Galois group: | $C_2^2$ |
| Jacobians: | $166$ |
| Isomorphism classes: | 236 |
| Cyclic group of points: | no |
| Non-cyclic primes: | $2$ |
This isogeny class is simple but not 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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $3572$ | $12759184$ | $42180322772$ | $146802884018176$ | $511116751970108852$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $60$ | $3662$ | $205380$ | $12115086$ | $714924300$ | $42180111902$ | $2488651484820$ | $146830483483678$ | $8662995818654940$ | $511116750639576302$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 166 curves (of which all are hyperelliptic):
- $y^2=46 x^6+9 x^5+48 x^4+35 x^3+41 x^2+35 x+29$
- $y^2=33 x^6+18 x^5+37 x^4+11 x^3+23 x^2+11 x+58$
- $y^2=39 x^6+49 x^5+8 x^4+x^3+55 x^2+35 x+52$
- $y^2=19 x^6+39 x^5+16 x^4+2 x^3+51 x^2+11 x+45$
- $y^2=37 x^6+2 x^5+56 x^4+2 x^3+x^2+52 x+46$
- $y^2=15 x^6+4 x^5+53 x^4+4 x^3+2 x^2+45 x+33$
- $y^2=30 x^6+4 x^5+24 x^4+5 x^3+29 x^2+2 x+50$
- $y^2=x^6+8 x^5+48 x^4+10 x^3+58 x^2+4 x+41$
- $y^2=38 x^6+32 x^5+30 x^4+19 x^3+3 x^2+31 x+7$
- $y^2=17 x^6+4 x^5+x^4+14 x^3+35 x^2+56 x+1$
- $y^2=34 x^6+8 x^5+2 x^4+28 x^3+11 x^2+53 x+2$
- $y^2=39 x^5+2 x^4+30 x^3+22 x^2+11 x+41$
- $y^2=19 x^5+4 x^4+x^3+44 x^2+22 x+23$
- $y^2=54 x^6+2 x^5+15 x^4+49 x^3+23 x^2+17 x+56$
- $y^2=49 x^6+4 x^5+30 x^4+39 x^3+46 x^2+34 x+53$
- $y^2=53 x^6+28 x^5+32 x^4+44 x^3+32 x^2+49 x+21$
- $y^2=47 x^6+56 x^5+5 x^4+29 x^3+5 x^2+39 x+42$
- $y^2=18 x^6+2 x^5+18 x^4+38 x^3+20 x^2+9 x+14$
- $y^2=36 x^6+4 x^5+36 x^4+17 x^3+40 x^2+18 x+28$
- $y^2=6 x^6+33 x^5+16 x^4+53 x^3+38 x^2+35 x+50$
- and 146 more
Decomposition and endomorphism algebra
All geometric endomorphisms are defined over $\F_{59^{2}}$.
Endomorphism algebra over $\F_{59}$| The endomorphism algebra of this simple isogeny class is \(\Q(\sqrt{7}, \sqrt{-13})\). |
| The base change of $A$ to $\F_{59^{2}}$ is 1.3481.dm 2 and its endomorphism algebra is $\mathrm{M}_{2}($\(\Q(\sqrt{-91}) \)$)$ |
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 |
|---|---|---|
| 2.59.a_adm | $4$ | (not in LMFDB) |