Properties

Label 2.53.o_fn
Base field $\F_{53}$
Dimension $2$
$p$-rank $2$
Ordinary yes
Supersingular no
Simple yes
Geometrically simple no
Primitive yes
Principally polarizable yes
Contains a Jacobian yes

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Invariants

Base field:  $\F_{53}$
Dimension:  $2$
L-polynomial:  $1 + 14 x + 143 x^{2} + 742 x^{3} + 2809 x^{4}$
Frobenius angles:  $\pm0.578081133884$, $\pm0.755252199450$
Angle rank:  $1$ (numerical)
Number field:  \(\Q(\zeta_{12})\)
Galois group:  $C_2^2$
Jacobians:  $78$
Isomorphism classes:  44
Cyclic group of points:    yes

This isogeny class is simple but not 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

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $3709$ $8148673$ $22010689600$ $62279272857529$ $174890520318453229$

Point counts of the curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $68$ $2900$ $147842$ $7892964$ $418202788$ $22164419990$ $1174710341236$ $62259680790724$ $3299763776528186$ $174887469582324500$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 78 curves (of which all are hyperelliptic):

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{53^{3}}$.

Endomorphism algebra over $\F_{53}$
The endomorphism algebra of this simple isogeny class is \(\Q(\zeta_{12})\).
Endomorphism algebra over $\overline{\F}_{53}$
The base change of $A$ to $\F_{53^{3}}$ is 1.148877.aty 2 and its endomorphism algebra is $\mathrm{M}_{2}($\(\Q(\sqrt{-1}) \)$)$

Base change

This is a primitive isogeny class.

Twists

Below are some of the twists of this isogeny class.

TwistExtension degreeCommon base change
2.53.ao_fn$2$(not in LMFDB)
2.53.abc_lq$3$(not in LMFDB)
2.53.ae_abl$4$(not in LMFDB)

Below is a list of all twists of this isogeny class.

TwistExtension degreeCommon base change
2.53.ao_fn$2$(not in LMFDB)
2.53.abc_lq$3$(not in LMFDB)
2.53.ae_abl$4$(not in LMFDB)
2.53.e_abl$4$(not in LMFDB)
2.53.a_adm$6$(not in LMFDB)
2.53.bc_lq$6$(not in LMFDB)
2.53.as_gg$12$(not in LMFDB)
2.53.ak_by$12$(not in LMFDB)
2.53.ai_es$12$(not in LMFDB)
2.53.a_dm$12$(not in LMFDB)
2.53.i_es$12$(not in LMFDB)
2.53.k_by$12$(not in LMFDB)
2.53.s_gg$12$(not in LMFDB)
2.53.a_ace$24$(not in LMFDB)
2.53.a_ce$24$(not in LMFDB)