Properties

Label 1024.33
Modulus $1024$
Conductor $128$
Order $32$
Real no
Primitive no
Minimal no
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1024, base_ring=CyclotomicField(32))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,15]))
 
pari: [g,chi] = znchar(Mod(33,1024))
 

Basic properties

Modulus: \(1024\)
Conductor: \(128\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(32\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{128}(13,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: no
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 1024.k

\(\chi_{1024}(33,\cdot)\) \(\chi_{1024}(97,\cdot)\) \(\chi_{1024}(161,\cdot)\) \(\chi_{1024}(225,\cdot)\) \(\chi_{1024}(289,\cdot)\) \(\chi_{1024}(353,\cdot)\) \(\chi_{1024}(417,\cdot)\) \(\chi_{1024}(481,\cdot)\) \(\chi_{1024}(545,\cdot)\) \(\chi_{1024}(609,\cdot)\) \(\chi_{1024}(673,\cdot)\) \(\chi_{1024}(737,\cdot)\) \(\chi_{1024}(801,\cdot)\) \(\chi_{1024}(865,\cdot)\) \(\chi_{1024}(929,\cdot)\) \(\chi_{1024}(993,\cdot)\)

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: \(\Q(\zeta_{32})\)
Fixed field: \(\Q(\zeta_{128})^+\)

Values on generators

\((1023,5)\) → \((1,e\left(\frac{15}{32}\right))\)

First values

\(a\) \(-1\)\(1\)\(3\)\(5\)\(7\)\(9\)\(11\)\(13\)\(15\)\(17\)\(19\)\(21\)
\( \chi_{ 1024 }(33, a) \) \(1\)\(1\)\(e\left(\frac{13}{32}\right)\)\(e\left(\frac{15}{32}\right)\)\(e\left(\frac{11}{16}\right)\)\(e\left(\frac{13}{16}\right)\)\(e\left(\frac{27}{32}\right)\)\(e\left(\frac{1}{32}\right)\)\(e\left(\frac{7}{8}\right)\)\(e\left(\frac{1}{8}\right)\)\(e\left(\frac{25}{32}\right)\)\(e\left(\frac{3}{32}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1024 }(33,a) \;\) at \(\;a = \) e.g. 2