Abelian variety isogeny class 1.463.as over $\F_{463}$

• Label: 1.463.as
• Base field: $\F_{463}$
• Dimension: $1$
• $p$-rank: $1$
• Ordinary: yes
• Supersingular: no
• Simple: yes
• Geometrically simple: yes
• Primitive: yes
• Principally polarizable: yes
• Contains a Jacobian: yes

Invariants

Base field:	$\F_{463}$
Dimension:	$1$
L-polynomial:	$1 - 18 x + 463 x^{2}$
Frobenius angles:	$\pm0.362638179038$
Angle rank:	$1$ (numerical)
Number field:	\(\Q(\sqrt{-382}) \)
Galois group:	$C_2$
Jacobians:	$8$
Isomorphism classes:	8

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:	$1$
Slopes:	$[0, 1]$

Point counts

Point counts of the abelian variety

$r$	$1$	$2$	$3$	$4$	$5$
$A(\F_{q^r})$	$446$	$214972$	$99272018$	$45954134496$	$21276725876846$

Point counts of the curve

$r$	$1$	$2$	$3$	$4$	$5$	$6$	$7$	$8$	$9$	$10$
$C(\F_{q^r})$	$446$	$214972$	$99272018$	$45954134496$	$21276725876846$	$9851127468622204$	$4561072096726232834$	$2111776380633341858688$	$977752464194057836831454$	$452699390921213416991236732$

Jacobians and polarizations

This isogeny class is principally polarizable and contains the Jacobians of 8 curves (of which 0 are hyperelliptic):

• $y^2=x^3+153 x+459$
• $y^2=x^3+287 x+398$
• $y^2=x^3+145 x+145$
• $y^2=x^3+460 x+460$
• $y^2=x^3+72 x+72$
• $y^2=x^3+170 x+47$
• $y^2=x^3+349 x+349$
• $y^2=x^3+374 x+374$

Decomposition and endomorphism algebra

All geometric endomorphisms are defined over $\F_{463}$.

Endomorphism algebra over $\F_{463}$

The endomorphism algebra of this simple isogeny class is \(\Q(\sqrt{-382}) \).

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
1.463.s	$2$	(not in LMFDB)