Invariants
| Base field: | $\F_{59}$ |
| Dimension: | $2$ |
| L-polynomial: | $1 + 12 x + 133 x^{2} + 708 x^{3} + 3481 x^{4}$ |
| Frobenius angles: | $\pm0.529411158564$, $\pm0.741891606041$ |
| Angle rank: | $2$ (numerical) |
| Number field: | \(\Q(\sqrt{-179 +12 \sqrt{21}})\) |
| Galois group: | $D_{4}$ |
| Jacobians: | $156$ |
| 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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $4335$ | $12549825$ | $41988879360$ | $146835675812025$ | $511110414002270175$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $72$ | $3604$ | $204444$ | $12117796$ | $714915432$ | $42180820342$ | $2488652174808$ | $146830395961156$ | $8662996054490436$ | $511116754522642324$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 156 curves (of which all are hyperelliptic):
- $y^2=2 x^6+22 x^5+18 x^4+28 x^3+23 x^2+31 x+43$
- $y^2=15 x^6+7 x^5+44 x^4+3 x^3+17 x^2+2 x+33$
- $y^2=53 x^6+48 x^5+5 x^4+4 x^3+19 x^2+45 x+19$
- $y^2=7 x^6+55 x^5+52 x^4+7 x^3+39 x^2+57 x+8$
- $y^2=15 x^6+18 x^5+16 x^4+40 x^3+7 x^2+26 x+4$
- $y^2=54 x^6+55 x^5+11 x^4+48 x^3+48 x^2+21 x+30$
- $y^2=37 x^6+34 x^5+34 x^4+40 x^3+57 x^2+36 x+52$
- $y^2=22 x^6+36 x^5+16 x^4+29 x^3+39 x^2+58 x+33$
- $y^2=3 x^6+34 x^5+16 x^4+50 x^3+21 x^2+26 x+20$
- $y^2=52 x^6+39 x^5+20 x^4+42 x^3+37 x^2+x+33$
- $y^2=6 x^6+26 x^5+13 x^4+17 x^3+14 x^2+4 x+16$
- $y^2=26 x^6+8 x^5+32 x^4+26 x^3+11 x^2+19 x+31$
- $y^2=31 x^6+55 x^5+10 x^4+36 x^3+42 x^2+42 x+45$
- $y^2=29 x^6+39 x^5+26 x^4+35 x^3+34 x^2+42 x+57$
- $y^2=18 x^6+12 x^5+5 x^4+35 x^3+46 x^2+53 x+24$
- $y^2=26 x^6+41 x^5+58 x^4+16 x^3+51 x^2+46 x+8$
- $y^2=41 x^6+22 x^5+38 x^4+42 x^3+24 x^2+25 x+36$
- $y^2=4 x^6+52 x^5+54 x^4+30 x^3+29 x^2+34 x+7$
- $y^2=7 x^6+30 x^5+27 x^4+40 x^3+48 x^2+52 x+9$
- $y^2=8 x^6+13 x^5+20 x^4+39 x^3+12 x^2+19 x+33$
- and 136 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 \(\Q(\sqrt{-179 +12 \sqrt{21}})\). |
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.am_fd | $2$ | (not in LMFDB) |