Invariants
| Base field: | $\F_{79}$ |
| Dimension: | $2$ |
| L-polynomial: | $1 + 2 x + 142 x^{2} + 158 x^{3} + 6241 x^{4}$ |
| Frobenius angles: | $\pm0.443784876446$, $\pm0.593055867889$ |
| Angle rank: | $2$ (numerical) |
| Number field: | 4.0.6411176.2 |
| Galois group: | $D_{4}$ |
| Jacobians: | $224$ |
| 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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $6544$ | $40729856$ | $242905250512$ | $1516549143535616$ | $9468351657986668624$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $82$ | $6522$ | $492670$ | $38935710$ | $3077080962$ | $243087758202$ | $19203909472942$ | $1517108851767294$ | $119851595628658930$ | $9468276075424604602$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 224 curves (of which all are hyperelliptic):
- $y^2=53 x^6+8 x^5+72 x^4+59 x^3+64 x^2+4 x+25$
- $y^2=66 x^5+12 x^4+5 x^3+20 x^2+40 x+13$
- $y^2=10 x^6+4 x^5+32 x^4+30 x^3+22 x^2+51 x+35$
- $y^2=56 x^6+60 x^5+76 x^4+9 x^3+77 x+38$
- $y^2=32 x^6+62 x^5+19 x^4+13 x^3+63 x^2+60 x+1$
- $y^2=30 x^6+14 x^5+31 x^4+37 x^3+18 x^2+32 x+32$
- $y^2=6 x^6+44 x^5+67 x^4+72 x^3+2 x^2+69 x+67$
- $y^2=4 x^6+2 x^5+60 x^4+62 x^3+70 x^2+9 x+50$
- $y^2=9 x^6+39 x^5+48 x^4+30 x^3+26 x^2+30 x+6$
- $y^2=12 x^6+9 x^5+26 x^4+41 x^3+27 x^2+12 x+63$
- $y^2=34 x^6+34 x^5+51 x^4+12 x^3+52 x^2+57 x+42$
- $y^2=75 x^6+63 x^5+73 x^4+12 x^3+70 x^2+55$
- $y^2=61 x^6+8 x^5+66 x^4+58 x^3+18 x^2+9 x+64$
- $y^2=59 x^6+6 x^5+76 x^4+21 x^3+35 x^2+69 x+48$
- $y^2=78 x^6+26 x^5+6 x^4+43 x^3+40 x^2+5 x+44$
- $y^2=x^6+8 x^5+36 x^4+33 x^3+17 x^2+56 x+4$
- $y^2=7 x^6+7 x^5+46 x^4+59 x^3+10 x^2+68 x+51$
- $y^2=68 x^6+26 x^5+27 x^4+74 x^3+64 x^2+48 x+58$
- $y^2=75 x^6+10 x^5+60 x^4+20 x^3+17 x^2+41 x+76$
- $y^2=47 x^6+13 x^5+67 x^4+59 x^3+32 x^2+41 x+1$
- and 204 more
Decomposition and endomorphism algebra
All geometric endomorphisms are defined over $\F_{79}$.
Endomorphism algebra over $\F_{79}$| The endomorphism algebra of this simple isogeny class is 4.0.6411176.2. |
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 |
|---|---|---|
| 2.79.ac_fm | $2$ | (not in LMFDB) |