Invariants
| Base field: | $\F_{59}$ |
| Dimension: | $2$ |
| L-polynomial: | $1 + 26 x^{2} + 3481 x^{4}$ |
| Frobenius angles: | $\pm0.285358177425$, $\pm0.714641822575$ |
| Angle rank: | $1$ (numerical) |
| Number field: | \(\Q(i, \sqrt{23})\) |
| Galois group: | $C_2^2$ |
| Jacobians: | $399$ |
| 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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $3508$ | $12306064$ | $42180279700$ | $146982840827904$ | $511116754581869428$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $60$ | $3534$ | $205380$ | $12129934$ | $714924300$ | $42180025758$ | $2488651484820$ | $146830407046174$ | $8662995818654940$ | $511116755863097454$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 399 curves (of which all are hyperelliptic):
- $y^2=41 x^6+35 x^5+35 x^4+47 x^3+2 x^2+9 x+58$
- $y^2=23 x^6+11 x^5+11 x^4+35 x^3+4 x^2+18 x+57$
- $y^2=30 x^6+46 x^5+54 x^4+30 x^3+30 x^2+31 x+29$
- $y^2=x^6+33 x^5+49 x^4+x^3+x^2+3 x+58$
- $y^2=36 x^6+40 x^5+29 x^3+40 x^2+x+6$
- $y^2=13 x^6+21 x^5+58 x^3+21 x^2+2 x+12$
- $y^2=10 x^6+39 x^5+29 x^4+14 x^3+44 x^2+43 x+16$
- $y^2=20 x^6+19 x^5+58 x^4+28 x^3+29 x^2+27 x+32$
- $y^2=58 x^6+29 x^5+56 x^4+12 x^3+6 x^2+22 x+58$
- $y^2=57 x^6+58 x^5+53 x^4+24 x^3+12 x^2+44 x+57$
- $y^2=26 x^6+4 x^5+x^4+32 x^3+47 x^2+45 x+30$
- $y^2=50 x^6+3 x^5+18 x^4+36 x^3+52 x^2+23 x+27$
- $y^2=41 x^6+6 x^5+36 x^4+13 x^3+45 x^2+46 x+54$
- $y^2=25 x^6+11 x^5+40 x^4+9 x^3+10 x^2+42 x+15$
- $y^2=50 x^6+22 x^5+21 x^4+18 x^3+20 x^2+25 x+30$
- $y^2=25 x^6+22 x^5+46 x^4+41 x^3+39 x^2+30 x+50$
- $y^2=50 x^6+44 x^5+33 x^4+23 x^3+19 x^2+x+41$
- $y^2=20 x^6+18 x^4+57 x^3+30 x^2+19 x+42$
- $y^2=40 x^6+36 x^4+55 x^3+x^2+38 x+25$
- $y^2=56 x^6+12 x^5+11 x^4+48 x^3+9 x^2+57 x+41$
- and 379 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 \(\Q(i, \sqrt{23})\). |
| The base change of $A$ to $\F_{59^{2}}$ is 1.3481.ba 2 and its endomorphism algebra is $\mathrm{M}_{2}($\(\Q(\sqrt{-23}) \)$)$ |
Base change
This is a primitive isogeny class.