Invariants
| Base field: | $\F_{59}$ |
| Dimension: | $2$ |
| L-polynomial: | $1 - 6 x + 86 x^{2} - 354 x^{3} + 3481 x^{4}$ |
| Frobenius angles: | $\pm0.290328510012$, $\pm0.571103284058$ |
| Angle rank: | $2$ (numerical) |
| Number field: | \(\Q(\sqrt{-186 +6 \sqrt{41}})\) |
| Galois group: | $D_{4}$ |
| Jacobians: | $160$ |
| Isomorphism classes: | 256 |
| 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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $3208$ | $12601024$ | $42235928104$ | $146851325614080$ | $511156900978583848$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $54$ | $3618$ | $205650$ | $12119086$ | $714980454$ | $42180344466$ | $2488645190946$ | $146830429987486$ | $8662996051786710$ | $511116753784970178$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 160 curves (of which all are hyperelliptic):
- $y^2=16 x^6+3 x^5+25 x^4+12 x^3+26 x^2+51 x+13$
- $y^2=10 x^6+36 x^5+4 x^4+50 x^3+45 x^2+34 x+52$
- $y^2=9 x^6+56 x^5+50 x^4+20 x^3+55 x^2+39 x+19$
- $y^2=12 x^6+24 x^5+4 x^4+51 x^3+35 x^2+30 x+36$
- $y^2=41 x^6+15 x^5+x^4+7 x^3+50 x^2+15 x+6$
- $y^2=54 x^6+8 x^5+20 x^4+58 x^3+15 x^2+3 x+57$
- $y^2=57 x^6+13 x^5+36 x^4+23 x^3+50 x^2+35 x+15$
- $y^2=38 x^6+56 x^5+21 x^4+40 x^3+27 x^2+56 x+58$
- $y^2=15 x^6+40 x^5+29 x^4+53 x^3+27 x^2+25 x+50$
- $y^2=13 x^6+30 x^5+38 x^4+8 x^3+30 x^2+24 x+43$
- $y^2=14 x^6+25 x^5+11 x^4+26 x^3+25 x^2+3 x+46$
- $y^2=41 x^6+38 x^5+34 x^4+28 x^3+48 x^2+5 x+52$
- $y^2=8 x^6+31 x^5+49 x^4+10 x^3+51 x^2+16 x+5$
- $y^2=17 x^6+22 x^5+45 x^4+45 x^3+19 x^2+41 x+52$
- $y^2=11 x^6+11 x^5+20 x^4+34 x^3+19 x^2+38 x+37$
- $y^2=27 x^6+3 x^5+10 x^4+42 x^3+9 x^2+39 x+22$
- $y^2=35 x^6+41 x^5+43 x^4+44 x^3+5 x^2+3 x+44$
- $y^2=2 x^6+50 x^5+8 x^4+3 x^3+14 x^2+15 x+17$
- $y^2=12 x^6+26 x^5+4 x^4+52 x^3+20 x^2+2 x+44$
- $y^2=16 x^6+56 x^5+6 x^4+29 x^3+43 x^2+2 x+43$
- and 140 more
Decomposition and endomorphism algebra
All geometric endomorphisms are defined over $\F_{59}$.
Endomorphism algebra over $\F_{59}$| The endomorphism algebra of this simple isogeny class is \(\Q(\sqrt{-186 +6 \sqrt{41}})\). |
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.g_di | $2$ | (not in LMFDB) |