Invariants
| Base field: | $\F_{73}$ |
| Dimension: | $2$ |
| L-polynomial: | $( 1 - 14 x + 73 x^{2} )( 1 - 2 x + 73 x^{2} )$ |
| $1 - 16 x + 174 x^{2} - 1168 x^{3} + 5329 x^{4}$ | |
| Frobenius angles: | $\pm0.194368965322$, $\pm0.462659059226$ |
| Angle rank: | $2$ (numerical) |
| Jacobians: | $366$ |
| Cyclic group of points: | no |
| Non-cyclic primes: | $2, 3$ |
This isogeny class is not 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
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ |
|---|---|---|---|---|---|
| $A(\F_{q^r})$ | $4320$ | $28892160$ | $151627684320$ | $806421790310400$ | $4297709382355461600$ |
| $r$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
|---|---|---|---|---|---|---|---|---|---|---|
| $C(\F_{q^r})$ | $58$ | $5422$ | $389770$ | $28396894$ | $2073111898$ | $151335493774$ | $11047406204074$ | $806460048570046$ | $58871585943538810$ | $4297625827227903982$ |
Jacobians and polarizations
This isogeny class is principally polarizable and contains the Jacobians of 366 curves (of which all are hyperelliptic):
- $y^2=65 x^6+29 x^5+17 x^4+2 x^3+30 x^2+3 x+59$
- $y^2=69 x^6+38 x^5+35 x^4+38 x^3+23 x^2+67 x+51$
- $y^2=43 x^6+43 x^5+25 x^4+3 x^3+25 x^2+43 x+43$
- $y^2=33 x^6+55 x^5+56 x^4+44 x^3+41 x^2+x+69$
- $y^2=53 x^6+62 x^5+6 x^4+64 x^3+6 x^2+62 x+53$
- $y^2=42 x^6+33 x^5+39 x^4+72 x^3+68 x^2+59 x+47$
- $y^2=5 x^6+46 x^5+39 x^4+5 x^3+65 x^2+39 x+45$
- $y^2=5 x^6+62 x^5+19 x^4+54 x^3+33 x^2+44 x+69$
- $y^2=59 x^6+54 x^5+11 x^4+18 x^3+18 x^2+50 x+45$
- $y^2=60 x^6+x^5+43 x^4+21 x^3+44 x^2+32 x+31$
- $y^2=9 x^6+31 x^5+65 x^4+44 x^3+66 x^2+69 x+57$
- $y^2=48 x^6+65 x^5+7 x^4+3 x^3+20 x^2+41 x+12$
- $y^2=9 x^6+72 x^5+4 x^4+58 x^3+4 x^2+72 x+9$
- $y^2=59 x^6+23 x^5+68 x^4+53 x^3+22 x^2+36 x+26$
- $y^2=27 x^6+49 x^5+37 x^4+65 x^3+56 x^2+53 x+13$
- $y^2=39 x^6+26 x^5+17 x^4+18 x^3+17 x^2+26 x+39$
- $y^2=66 x^6+26 x^5+24 x^4+68 x^3+60 x^2+16 x+5$
- $y^2=8 x^6+60 x^5+53 x^4+58 x^3+x^2+7 x+34$
- $y^2=8 x^6+11 x^5+60 x^4+60 x^3+10 x^2+51 x+46$
- $y^2=69 x^6+55 x^5+41 x^4+3 x^3+42 x^2+36 x+59$
- and 346 more
Decomposition and endomorphism algebra
All geometric endomorphisms are defined over $\F_{73}$.
Endomorphism algebra over $\F_{73}$| The isogeny class factors as 1.73.ao $\times$ 1.73.ac and its endomorphism algebra is a direct product of the endomorphism algebras for each isotypic factor. The endomorphism algebra for each factor is: |
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 |
|---|---|---|
| 2.73.am_eo | $2$ | (not in LMFDB) |
| 2.73.m_eo | $2$ | (not in LMFDB) |
| 2.73.q_gs | $2$ | (not in LMFDB) |