Invariants
Base field: | $\F_{53}$ |
Dimension: | $2$ |
L-polynomial: | $1 - 22 x + 215 x^{2} - 1166 x^{3} + 2809 x^{4}$ |
Frobenius angles: | $\pm0.0365951132079$, $\pm0.326837590926$ |
Angle rank: | $2$ (numerical) |
Number field: | 4.0.62352.1 |
Galois group: | $D_{4}$ |
Jacobians: | $6$ |
Isomorphism classes: | 6 |
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
$r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
---|---|---|---|---|---|
$A(\F_{q^r})$ | $1837$ | $7739281$ | $22170650128$ | $62245187394841$ | $174866117878063117$ |
$r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
---|---|---|---|---|---|---|---|---|---|---|
$C(\F_{q^r})$ | $32$ | $2756$ | $148922$ | $7888644$ | $418144432$ | $22163835926$ | $1174708296976$ | $62259686411908$ | $3299763646074770$ | $174887470579914596$ |
Jacobians and polarizations
This isogeny class contains the Jacobians of 6 curves (of which all are hyperelliptic), and hence is principally polarizable:
- $y^2=39x^6+17x^5+39x^4+28x^3+52x^2+x+4$
- $y^2=32x^6+34x^5+49x^4+14x^3+20x^2+2x+15$
- $y^2=38x^6+36x^5+34x^4+43x^3+50x^2+8x+50$
- $y^2=32x^6+48x^5+22x^4+5x^3+9x^2+6x+31$
- $y^2=39x^6+12x^5+48x^4+28x^3+24x^2+18x+31$
- $y^2=17x^6+47x^5+52x^4+7x^3+27x^2+52x+38$
Decomposition and endomorphism algebra
All geometric endomorphisms are defined over $\F_{53}$.
Endomorphism algebra over $\F_{53}$The endomorphism algebra of this simple isogeny class is 4.0.62352.1. |
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 |
---|---|---|
2.53.w_ih | $2$ | (not in LMFDB) |