Properties

Label 1024.39
Modulus $1024$
Conductor $512$
Order $128$
Real no
Primitive no
Minimal no
Parity odd

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1024, base_ring=CyclotomicField(128))
 
M = H._module
 
chi = DirichletCharacter(H, M([64,73]))
 
pari: [g,chi] = znchar(Mod(39,1024))
 

Basic properties

Modulus: \(1024\)
Conductor: \(512\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(128\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{512}(411,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: no
Parity: odd
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 1024.p

\(\chi_{1024}(7,\cdot)\) \(\chi_{1024}(23,\cdot)\) \(\chi_{1024}(39,\cdot)\) \(\chi_{1024}(55,\cdot)\) \(\chi_{1024}(71,\cdot)\) \(\chi_{1024}(87,\cdot)\) \(\chi_{1024}(103,\cdot)\) \(\chi_{1024}(119,\cdot)\) \(\chi_{1024}(135,\cdot)\) \(\chi_{1024}(151,\cdot)\) \(\chi_{1024}(167,\cdot)\) \(\chi_{1024}(183,\cdot)\) \(\chi_{1024}(199,\cdot)\) \(\chi_{1024}(215,\cdot)\) \(\chi_{1024}(231,\cdot)\) \(\chi_{1024}(247,\cdot)\) \(\chi_{1024}(263,\cdot)\) \(\chi_{1024}(279,\cdot)\) \(\chi_{1024}(295,\cdot)\) \(\chi_{1024}(311,\cdot)\) \(\chi_{1024}(327,\cdot)\) \(\chi_{1024}(343,\cdot)\) \(\chi_{1024}(359,\cdot)\) \(\chi_{1024}(375,\cdot)\) \(\chi_{1024}(391,\cdot)\) \(\chi_{1024}(407,\cdot)\) \(\chi_{1024}(423,\cdot)\) \(\chi_{1024}(439,\cdot)\) \(\chi_{1024}(455,\cdot)\) \(\chi_{1024}(471,\cdot)\) ...

sage: chi.galois_orbit()
 
order = charorder(g,chi)
 
[ charpow(g,chi, k % order) | k <-[1..order-1], gcd(k,order)==1 ]
 

Related number fields

Field of values: $\Q(\zeta_{128})$
Fixed field: Number field defined by a degree 128 polynomial (not computed)

Values on generators

\((1023,5)\) → \((-1,e\left(\frac{73}{128}\right))\)

First values

\(a\) \(-1\)\(1\)\(3\)\(5\)\(7\)\(9\)\(11\)\(13\)\(15\)\(17\)\(19\)\(21\)
\( \chi_{ 1024 }(39, a) \) \(-1\)\(1\)\(e\left(\frac{59}{128}\right)\)\(e\left(\frac{73}{128}\right)\)\(e\left(\frac{45}{64}\right)\)\(e\left(\frac{59}{64}\right)\)\(e\left(\frac{125}{128}\right)\)\(e\left(\frac{39}{128}\right)\)\(e\left(\frac{1}{32}\right)\)\(e\left(\frac{31}{32}\right)\)\(e\left(\frac{79}{128}\right)\)\(e\left(\frac{21}{128}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1024 }(39,a) \;\) at \(\;a = \) e.g. 2