Invariants
| Base field: | $\F_{59}$ |
| Dimension: | $2$ |
| L-polynomial: | $1 - 50 x^{2} + 3481 x^{4}$ |
| Frobenius angles: | $\pm0.180360477918$, $\pm0.819639522082$ |
| Angle rank: | $1$ (numerical) |
| Number field: | \(\Q(\sqrt{-17}, \sqrt{42})\) |
| Galois group: | $C_2^2$ |
| Jacobians: | $300$ |
| 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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $3432$ | $11778624$ | $42180930792$ | $146938617086976$ | $511116752134426152$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $60$ | $3382$ | $205380$ | $12126286$ | $714924300$ | $42181327942$ | $2488651484820$ | $146830446254878$ | $8662995818654940$ | $511116750968210902$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 300 curves (of which all are hyperelliptic):
- $y^2=47 x^6+56 x^5+34 x^4+27 x^3+23 x^2+9 x+47$
- $y^2=47 x^6+52 x^5+58 x^4+7 x^3+51 x^2+2 x+31$
- $y^2=35 x^6+45 x^5+57 x^4+14 x^3+43 x^2+4 x+3$
- $y^2=32 x^6+52 x^5+48 x^4+34 x^3+53 x^2+47 x$
- $y^2=5 x^6+45 x^5+37 x^4+9 x^3+47 x^2+35 x$
- $y^2=50 x^6+36 x^5+4 x^4+39 x^3+37 x^2+36$
- $y^2=41 x^6+13 x^5+8 x^4+19 x^3+15 x^2+13$
- $y^2=7 x^6+28 x^5+27 x^4+48 x^3+10 x^2+19 x+13$
- $y^2=57 x^6+13 x^5+21 x^4+11 x^3+48 x^2+36 x+36$
- $y^2=54 x^6+57 x^5+16 x^4+31 x^3+18 x^2+8 x+45$
- $y^2=49 x^6+55 x^5+32 x^4+3 x^3+36 x^2+16 x+31$
- $y^2=42 x^6+50 x^5+44 x^4+49 x^3+26 x^2+10 x+37$
- $y^2=25 x^6+41 x^5+29 x^4+39 x^3+52 x^2+20 x+15$
- $y^2=8 x^6+51 x^5+20 x^4+52 x^3+37 x^2+8 x+1$
- $y^2=16 x^6+43 x^5+40 x^4+45 x^3+15 x^2+16 x+2$
- $y^2=19 x^6+36 x^5+40 x^4+46 x^3+28 x^2+35 x+22$
- $y^2=6 x^6+19 x^5+33 x^4+34 x^3+14 x^2+40 x+4$
- $y^2=12 x^6+38 x^5+7 x^4+9 x^3+28 x^2+21 x+8$
- $y^2=47 x^6+28 x^5+14 x^4+4 x^3+23 x^2+8 x+56$
- $y^2=35 x^6+56 x^5+28 x^4+8 x^3+46 x^2+16 x+53$
- and 280 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 \(\Q(\sqrt{-17}, \sqrt{42})\). |
| The base change of $A$ to $\F_{59^{2}}$ is 1.3481.aby 2 and its endomorphism algebra is $\mathrm{M}_{2}($\(\Q(\sqrt{-714}) \)$)$ |
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_by | $4$ | (not in LMFDB) |