Invariants
| Base field: | $\F_{79}$ |
| Dimension: | $2$ |
| L-polynomial: | $( 1 - 10 x + 79 x^{2} )( 1 - 4 x + 79 x^{2} )$ |
| $1 - 14 x + 198 x^{2} - 1106 x^{3} + 6241 x^{4}$ | |
| Frobenius angles: | $\pm0.309822710654$, $\pm0.427756044762$ |
| Angle rank: | $2$ (numerical) |
| Jacobians: | $322$ |
| Cyclic group of points: | no |
| Non-cyclic primes: | $2$ |
This isogeny class is not 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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $5320$ | $40219200$ | $244200964840$ | $1517164750080000$ | $9467914185584146600$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $66$ | $6442$ | $495294$ | $38951518$ | $3076938786$ | $243086769322$ | $19203910187934$ | $1517108823555838$ | $119851595910848706$ | $9468276084531252202$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 322 curves (of which all are hyperelliptic):
- $y^2=56 x^6+13 x^5+35 x^4+52 x^3+78 x^2+26 x+60$
- $y^2=2 x^6+24 x^5+42 x^4+70 x^3+18 x^2+57 x+75$
- $y^2=34 x^6+3 x^5+4 x^4+10 x^3+45 x+17$
- $y^2=45 x^6+67 x^5+25 x^4+53 x^3+39 x^2+24 x+17$
- $y^2=66 x^6+37 x^5+11 x^4+47 x^3+51 x^2+64 x+22$
- $y^2=42 x^6+24 x^5+42 x^4+46 x^3+74 x^2+54 x+16$
- $y^2=40 x^6+39 x^5+73 x^4+15 x^3+34 x^2+65 x+59$
- $y^2=33 x^6+33 x^5+61 x^4+6 x^3+71 x^2+27 x+12$
- $y^2=37 x^6+38 x^5+21 x^4+51 x^3+71$
- $y^2=12 x^6+59 x^5+38 x^4+4 x^3+38 x^2+59 x+12$
- $y^2=3 x^6+49 x^5+70 x^4+44 x^3+3 x+3$
- $y^2=22 x^6+27 x^5+10 x^4+x^3+19 x^2+24 x+67$
- $y^2=24 x^6+68 x^5+28 x^4+32 x^3+52 x^2+50 x+74$
- $y^2=7 x^6+13 x^5+40 x^4+51 x^3+49 x^2+75 x+78$
- $y^2=6 x^6+72 x^5+8 x^4+60 x^3+21 x^2+38 x+77$
- $y^2=60 x^6+22 x^5+25 x^3+75 x^2+41 x+23$
- $y^2=57 x^6+66 x^5+5 x^4+6 x^3+8 x^2+9 x+37$
- $y^2=37 x^6+35 x^5+78 x^4+71 x^3+8 x^2+23 x+47$
- $y^2=78 x^6+49 x^5+57 x^4+11 x^3+5 x^2+64 x+41$
- $y^2=x^6+71 x^5+28 x^4+66 x^3+28 x^2+71 x+1$
- and 302 more
Decomposition and endomorphism algebra
All geometric endomorphisms are defined over $\F_{79}$.
Endomorphism algebra over $\F_{79}$| The isogeny class factors as 1.79.ak $\times$ 1.79.ae and its endomorphism algebra is a direct product of the endomorphism algebras for each isotypic factor. The endomorphism algebra for each factor is: |
Base change
This is a primitive isogeny class.