Invariants
| Base field: | $\F_{53}$ |
| Dimension: | $2$ |
| L-polynomial: | $1 - 4 x - 15 x^{2} - 212 x^{3} + 2809 x^{4}$ |
| Frobenius angles: | $\pm0.139698859935$, $\pm0.717153535116$ |
| Angle rank: | $2$ (numerical) |
| Number field: | \(\Q(\sqrt{-298 -46 \sqrt{5}})\) |
| Galois group: | $D_{4}$ |
| Jacobians: | $60$ |
| Cyclic group of points: | yes |
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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $2579$ | $7765369$ | $22033779344$ | $62308458900041$ | $174892905810514939$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $50$ | $2764$ | $147998$ | $7896660$ | $418208490$ | $22164448438$ | $1174715465666$ | $62259694425444$ | $3299763654749414$ | $174887471349340764$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 60 curves (of which all are hyperelliptic):
- $y^2=38 x^6+40 x^5+14 x^4+44 x^3+28 x^2+7 x+12$
- $y^2=21 x^6+31 x^5+18 x^4+2 x^3+18 x^2+39 x+8$
- $y^2=x^6+13 x^5+24 x^4+14 x^3+12 x^2+48 x+7$
- $y^2=22 x^6+20 x^5+29 x^4+50 x^3+24 x^2+46 x+28$
- $y^2=14 x^6+25 x^5+35 x^4+34 x^3+49 x^2+17 x+6$
- $y^2=48 x^6+25 x^5+20 x^4+45 x^3+51 x^2+27 x+15$
- $y^2=4 x^6+40 x^5+38 x^4+23 x^3+24 x^2+8 x+17$
- $y^2=38 x^6+6 x^5+25 x^4+41 x^3+41 x^2+18 x+12$
- $y^2=18 x^6+49 x^5+47 x^4+45 x^3+5 x^2+52 x+33$
- $y^2=11 x^6+24 x^5+52 x^4+12 x^3+31 x^2+44 x+50$
- $y^2=7 x^6+49 x^4+19 x^3+26 x^2+11 x+24$
- $y^2=39 x^6+23 x^5+47 x^4+3 x^3+13 x^2+27 x+40$
- $y^2=45 x^6+2 x^5+47 x^4+13 x^3+48 x^2+50 x+13$
- $y^2=9 x^6+41 x^5+27 x^4+40 x^3+37 x^2+15 x+41$
- $y^2=15 x^6+52 x^5+42 x^4+49 x^3+44 x^2+21 x+23$
- $y^2=8 x^6+31 x^5+44 x^4+27 x^3+41 x^2+21 x+8$
- $y^2=23 x^6+4 x^5+42 x^4+22 x^3+29 x^2+3 x+10$
- $y^2=32 x^6+x^5+24 x^4+6 x^3+45 x^2+10 x+30$
- $y^2=39 x^6+38 x^5+29 x^4+10 x^3+10 x^2+44 x+47$
- $y^2=20 x^6+39 x^5+32 x^4+19 x^3+5 x^2+24 x+21$
- and 40 more
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 \(\Q(\sqrt{-298 -46 \sqrt{5}})\). |
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.e_ap | $2$ | (not in LMFDB) |