Invariants
| Base field: | $\F_{79}$ |
| Dimension: | $2$ |
| L-polynomial: | $1 + 3 x + 82 x^{2} + 237 x^{3} + 6241 x^{4}$ |
| Frobenius angles: | $\pm0.364397291511$, $\pm0.697730624844$ |
| Angle rank: | $1$ (numerical) |
| Number field: | \(\Q(\sqrt{-3}, \sqrt{313})\) |
| Galois group: | $C_2^2$ |
| Jacobians: | $280$ |
| 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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $6564$ | $39935376$ | $243086633712$ | $1517558504993856$ | $9467998885629219324$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $83$ | $6397$ | $493040$ | $38961625$ | $3076966313$ | $243085811902$ | $19203918568463$ | $1517108865247249$ | $119851595982618320$ | $9468276086075737477$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 280 curves (of which all are hyperelliptic):
- $y^2=37 x^6+21 x^5+61 x^4+35 x^3+39 x^2+67 x+4$
- $y^2=18 x^6+74 x^5+42 x^4+76 x^3+69 x^2+40 x+68$
- $y^2=x^6+x^3+47$
- $y^2=54 x^6+62 x^5+41 x^4+36 x^3+21 x^2+5 x+38$
- $y^2=47 x^6+69 x^5+15 x^4+78 x^3+28 x^2+28 x+36$
- $y^2=46 x^6+20 x^5+30 x^4+54 x^3+66 x^2+14 x+1$
- $y^2=38 x^6+35 x^5+47 x^4+25 x^3+39 x^2+45 x+9$
- $y^2=31 x^6+53 x^5+65 x^4+6 x^3+65 x^2+36 x+36$
- $y^2=45 x^6+77 x^5+34 x^4+19 x^3+16 x^2+55 x+73$
- $y^2=48 x^6+31 x^5+60 x^4+21 x^3+38 x^2+22 x$
- $y^2=52 x^6+42 x^5+46 x^4+22 x^3+14 x^2+22 x+65$
- $y^2=74 x^6+17 x^5+65 x^4+17 x^3+27 x^2+18 x+61$
- $y^2=23 x^6+9 x^5+41 x^4+32 x^3+71 x^2+25 x+35$
- $y^2=62 x^6+75 x^5+17 x^4+35 x^3+10 x^2+15 x+30$
- $y^2=35 x^6+38 x^5+16 x^4+17 x^3+77 x^2+36 x+66$
- $y^2=31 x^6+67 x^5+64 x^4+77 x^3+48 x^2+67 x+25$
- $y^2=6 x^6+57 x^5+13 x^4+8 x^3+2 x^2+13 x+23$
- $y^2=29 x^6+57 x^5+70 x^4+41 x^3+50 x^2+47 x+9$
- $y^2=9 x^6+36 x^5+58 x^4+69 x^3+75 x^2+58 x+32$
- $y^2=3 x^6+24 x^5+3 x^4+7 x^3+66 x^2+6 x+25$
- and 260 more
Decomposition and endomorphism algebra
All geometric endomorphisms are defined over $\F_{79^{6}}$.
Endomorphism algebra over $\F_{79}$| The endomorphism algebra of this simple isogeny class is \(\Q(\sqrt{-3}, \sqrt{313})\). |
| The base change of $A$ to $\F_{79^{6}}$ is 1.243087455521.abutsc 2 and its endomorphism algebra is $\mathrm{M}_{2}($\(\Q(\sqrt{-939}) \)$)$ |
- Endomorphism algebra over $\F_{79^{2}}$
The base change of $A$ to $\F_{79^{2}}$ is the simple isogeny class 2.6241.fz_baia and its endomorphism algebra is \(\Q(\sqrt{-3}, \sqrt{313})\). - Endomorphism algebra over $\F_{79^{3}}$
The base change of $A$ to $\F_{79^{3}}$ is the simple isogeny class 2.493039.a_abutsc and its endomorphism algebra is \(\Q(\sqrt{-3}, \sqrt{313})\).
Base change
This is a primitive isogeny class.