Properties

Label 3.2.ag_s_abg
Base field $\F_{2}$
Dimension $3$
$p$-rank $0$
Ordinary no
Supersingular yes
Simple no
Geometrically simple no
Primitive yes
Principally polarizable yes
Contains a Jacobian no

Related objects

Downloads

Learn more

Invariants

Base field:  $\F_{2}$
Dimension:  $3$
L-polynomial:  $( 1 - 2 x + 2 x^{2} )^{3}$
  $1 - 6 x + 18 x^{2} - 32 x^{3} + 36 x^{4} - 24 x^{5} + 8 x^{6}$
Frobenius angles:  $\pm0.250000000000$, $\pm0.250000000000$, $\pm0.250000000000$
Angle rank:  $0$ (numerical)
Jacobians:  $0$

This isogeny class is not simple, primitive, not ordinary, and supersingular. It is principally polarizable.

Newton polygon

This isogeny class is supersingular.

$p$-rank:  $0$
Slopes:  $[1/2, 1/2, 1/2, 1/2, 1/2, 1/2]$

Point counts

Point counts of the abelian variety

$r$ $1$ $2$ $3$ $4$ $5$
$A(\F_{q^r})$ $1$ $125$ $2197$ $15625$ $68921$

Point counts of the (virtual) curve

$r$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$
$C(\F_{q^r})$ $-3$ $5$ $21$ $41$ $57$ $65$ $81$ $161$ $417$ $1025$

Jacobians and polarizations

This isogeny class is principally polarizable, but does not contain a Jacobian.

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{2^{4}}$.

Endomorphism algebra over $\F_{2}$
The isogeny class factors as 1.2.ac 3 and its endomorphism algebra is $\mathrm{M}_{3}($\(\Q(\sqrt{-1}) \)$)$
Endomorphism algebra over $\overline{\F}_{2}$
The base change of $A$ to $\F_{2^{4}}$ is 1.16.i 3 and its endomorphism algebra is $\mathrm{M}_{3}(B)$, where $B$ is the quaternion algebra over \(\Q\) ramified at $2$ and $\infty$.
Remainder of endomorphism lattice by field

Base change

This is a primitive isogeny class.

Twists

Below are some of the twists of this isogeny class.

TwistExtension degreeCommon base change
3.2.ac_c_a$2$3.4.a_m_a
3.2.c_c_a$2$3.4.a_m_a
3.2.g_s_bg$2$3.4.a_m_a
3.2.a_a_e$3$3.8.m_cu_jw

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

TwistExtension degreeCommon base change
3.2.ac_c_a$2$3.4.a_m_a
3.2.c_c_a$2$3.4.a_m_a
3.2.g_s_bg$2$3.4.a_m_a
3.2.a_a_e$3$3.8.m_cu_jw
3.2.ae_i_am$6$(not in LMFDB)
3.2.a_a_ae$6$(not in LMFDB)
3.2.e_i_m$6$(not in LMFDB)
3.2.ae_k_aq$8$(not in LMFDB)
3.2.ac_ac_i$8$(not in LMFDB)
3.2.ac_g_ai$8$(not in LMFDB)
3.2.a_ac_a$8$(not in LMFDB)
3.2.a_c_a$8$(not in LMFDB)
3.2.a_g_a$8$(not in LMFDB)
3.2.c_ac_ai$8$(not in LMFDB)
3.2.c_g_i$8$(not in LMFDB)
3.2.e_k_q$8$(not in LMFDB)
3.2.ac_a_e$24$(not in LMFDB)
3.2.ac_e_ai$24$(not in LMFDB)
3.2.ac_e_ae$24$(not in LMFDB)
3.2.a_a_a$24$(not in LMFDB)
3.2.a_e_a$24$(not in LMFDB)
3.2.c_a_ae$24$(not in LMFDB)
3.2.c_e_e$24$(not in LMFDB)
3.2.c_e_i$24$(not in LMFDB)