Invariants
Base field: | $\F_{193}$ |
Dimension: | $2$ |
L-polynomial: | $1 - 48 x + 960 x^{2} - 9264 x^{3} + 37249 x^{4}$ |
Frobenius angles: | $\pm0.132444567603$, $\pm0.197898328146$ |
Angle rank: | $2$ (numerical) |
Number field: | 4.0.2113792.1 |
Galois group: | $D_{4}$ |
Jacobians: | $20$ |
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
$r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
---|---|---|---|---|---|
$A(\F_{q^r})$ | $28898$ | $1373290756$ | $51681517058594$ | $1925214602462699536$ | $71709317079284242891298$ |
$r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
---|---|---|---|---|---|---|---|---|---|---|
$C(\F_{q^r})$ | $146$ | $36866$ | $7188914$ | $1387554054$ | $267786723506$ | $51682563995906$ | $9974730590974610$ | $1925122954928540158$ | $371548729915322666258$ | $71708904873025163218946$ |
Jacobians and polarizations
This isogeny class contains the Jacobians of 20 curves (of which all are hyperelliptic), and hence is principally polarizable:
- $y^2=88x^6+105x^5+9x^4+147x^3+50x^2+36x+71$
- $y^2=142x^6+112x^5+156x^4+46x^3+140x^2+151x+95$
- $y^2=138x^6+63x^5+34x^4+24x^3+31x^2+113x+71$
- $y^2=143x^6+10x^5+91x^4+163x^3+44x^2+13x+185$
- $y^2=15x^6+81x^5+90x^4+8x^3+124x^2+8x+111$
- $y^2=97x^6+111x^5+40x^4+188x^3+14x^2+83x+144$
- $y^2=175x^6+87x^5+165x^4+32x^3+129x^2+145x+86$
- $y^2=71x^6+47x^5+25x^4+166x^3+186x^2+189x+35$
- $y^2=135x^6+159x^5+9x^4+130x^3+108x^2+189x+153$
- $y^2=70x^6+156x^5+43x^4+110x^3+7x^2+22x+158$
- $y^2=65x^6+101x^5+101x^4+16x^3+39x^2+169x+125$
- $y^2=54x^6+107x^5+49x^4+2x^3+179x^2+37x+168$
- $y^2=29x^6+129x^5+147x^4+183x^3+60x^2+87x+185$
- $y^2=25x^6+109x^5+89x^4+146x^3+74x^2+80x+97$
- $y^2=12x^6+145x^5+49x^4+80x^3+54x^2+172x+115$
- $y^2=176x^6+185x^5+181x^4+190x^3+142x^2+19x+149$
- $y^2=97x^6+81x^5+177x^4+170x^3+104x^2+185x+36$
- $y^2=121x^6+85x^5+101x^4+49x^3+85x^2+191x+51$
- $y^2=142x^6+132x^5+77x^4+138x^3+115x^2+93x+89$
- $y^2=5x^6+179x^5+131x^4+192x^3+109x^2+54x+134$
Decomposition and endomorphism algebra
All geometric endomorphisms are defined over $\F_{193}$.
Endomorphism algebra over $\F_{193}$The endomorphism algebra of this simple isogeny class is 4.0.2113792.1. |
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 |
---|---|---|
2.193.bw_bky | $2$ | (not in LMFDB) |