Invariants
Base field: | $\F_{193}$ |
Dimension: | $2$ |
L-polynomial: | $1 - 49 x + 981 x^{2} - 9457 x^{3} + 37249 x^{4}$ |
Frobenius angles: | $\pm0.0853826055493$, $\pm0.205199049154$ |
Angle rank: | $2$ (numerical) |
Number field: | 4.0.6666597.1 |
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
$r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
---|---|---|---|---|---|
$A(\F_{q^r})$ | $28725$ | $1371245325$ | $51669514082925$ | $1925161005311143125$ | $71709118018795601538000$ |
$r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
---|---|---|---|---|---|---|---|---|---|---|
$C(\F_{q^r})$ | $145$ | $36811$ | $7187245$ | $1387515427$ | $267785980150$ | $51682551853939$ | $9974730425992645$ | $1925122953234269923$ | $371548729907983826305$ | $71708904873230579421886$ |
Jacobians and polarizations
This isogeny class contains the Jacobians of 20 curves (of which all are hyperelliptic), and hence is principally polarizable:
- $y^2=35x^6+80x^5+192x^4+176x^3+68x^2+30x+79$
- $y^2=174x^6+91x^5+146x^4+137x^3+145x^2+173x+158$
- $y^2=57x^6+93x^5+20x^4+130x^3+88x^2+87x+52$
- $y^2=174x^6+141x^5+86x^4+119x^3+30x^2+138x+123$
- $y^2=150x^6+141x^5+97x^4+161x^3+29x^2+67x+88$
- $y^2=73x^6+181x^5+72x^4+96x^3+73x^2+141x+68$
- $y^2=111x^6+125x^5+54x^4+138x^3+9x^2+27x+99$
- $y^2=103x^6+122x^5+76x^4+184x^3+104x^2+73x+130$
- $y^2=15x^6+112x^5+12x^4+23x^3+175x^2+35x+100$
- $y^2=148x^6+171x^5+7x^4+173x^3+133x^2+183x+9$
- $y^2=167x^6+131x^5+91x^4+181x^3+120x^2+22x+163$
- $y^2=156x^6+36x^5+79x^4+47x^3+159x^2+47x+157$
- $y^2=35x^6+103x^5+131x^4+20x^3+73x^2+144x+155$
- $y^2=163x^6+9x^5+39x^4+76x^3+65x^2+78x+111$
- $y^2=125x^6+177x^5+152x^4+188x^3+43x^2+41x+132$
- $y^2=66x^6+104x^5+9x^4+118x^3+8x^2+98x$
- $y^2=14x^6+138x^5+134x^4+28x^3+169x^2+48x+62$
- $y^2=115x^6+20x^5+110x^4+127x^3+24x^2+144x+7$
- $y^2=20x^6+95x^5+69x^4+17x^3+67x^2+154x+55$
- $y^2=107x^6+186x^5+192x^4+54x^3+138x^2+128x+95$
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 4.0.6666597.1. |
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.bx_blt | $2$ | (not in LMFDB) |