Invariants
| Base field: | $\F_{53}$ |
| Dimension: | $2$ |
| L-polynomial: | $1 - 12 x + 114 x^{2} - 636 x^{3} + 2809 x^{4}$ |
| Frobenius angles: | $\pm0.217496046849$, $\pm0.484504985804$ |
| Angle rank: | $2$ (numerical) |
| Number field: | 4.0.3502912.3 |
| Galois group: | $D_{4}$ |
| Jacobians: | $56$ |
| Isomorphism classes: | 72 |
| Cyclic group of points: | no |
| Non-cyclic primes: | $2$ |
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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $2276$ | $8129872$ | $22234373732$ | $62256868762624$ | $174899810926531076$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $42$ | $2894$ | $149346$ | $7890126$ | $418225002$ | $22164817502$ | $1174711711362$ | $62259665010334$ | $3299763429200682$ | $174887470391553134$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 56 curves (of which all are hyperelliptic):
- $y^2=10 x^6+44 x^5+11 x^4+26 x^3+39 x^2+46 x+2$
- $y^2=7 x^6+52 x^5+3 x^4+49 x^3+41 x^2+2 x+16$
- $y^2=11 x^6+28 x^5+37 x^4+26 x^3+17 x^2+13 x+32$
- $y^2=31 x^6+28 x^5+35 x^4+43 x^3+17 x^2+4$
- $y^2=7 x^6+20 x^5+39 x^4+32 x^3+11 x^2+51 x+32$
- $y^2=16 x^6+4 x^5+30 x^4+31 x^3+49 x^2+47 x+48$
- $y^2=17 x^6+5 x^5+26 x^4+32 x^3+23 x^2+29 x+37$
- $y^2=49 x^6+17 x^5+9 x^4+18 x^3+30 x^2+24 x+13$
- $y^2=28 x^6+51 x^5+46 x^4+31 x^3+29 x^2+36 x+28$
- $y^2=14 x^6+12 x^5+11 x^4+15 x^3+x^2+38 x+2$
- $y^2=34 x^6+51 x^5+44 x^4+7 x^3+11 x^2+13 x+46$
- $y^2=4 x^6+45 x^5+36 x^4+26 x^3+14 x^2+23 x+5$
- $y^2=10 x^6+34 x^5+48 x^4+2 x^3+39 x^2+3 x+35$
- $y^2=15 x^6+17 x^5+35 x^4+29 x^3+35 x+51$
- $y^2=3 x^6+22 x^5+12 x^4+9 x^3+32 x^2+19 x+15$
- $y^2=34 x^6+43 x^5+36 x^4+21 x^3+x^2+13 x+47$
- $y^2=3 x^6+42 x^5+36 x^4+44 x^3+17 x^2+22 x+2$
- $y^2=9 x^6+6 x^5+52 x^4+6 x^3+22 x^2+51 x+1$
- $y^2=35 x^6+3 x^5+47 x^4+27 x^3+3 x^2+13 x+29$
- $y^2=13 x^6+42 x^5+21 x^4+17 x^3+35 x^2+33 x+31$
- and 36 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 4.0.3502912.3. |
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.m_ek | $2$ | (not in LMFDB) |