Properties

Label 1920.1123
Modulus $1920$
Conductor $640$
Order $32$
Real no
Primitive no
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1920, base_ring=CyclotomicField(32))
 
M = H._module
 
chi = DirichletCharacter(H, M([16,27,0,24]))
 
pari: [g,chi] = znchar(Mod(1123,1920))
 

Basic properties

Modulus: \(1920\)
Conductor: \(640\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(32\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{640}(483,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 1920.cx

\(\chi_{1920}(163,\cdot)\) \(\chi_{1920}(187,\cdot)\) \(\chi_{1920}(403,\cdot)\) \(\chi_{1920}(427,\cdot)\) \(\chi_{1920}(643,\cdot)\) \(\chi_{1920}(667,\cdot)\) \(\chi_{1920}(883,\cdot)\) \(\chi_{1920}(907,\cdot)\) \(\chi_{1920}(1123,\cdot)\) \(\chi_{1920}(1147,\cdot)\) \(\chi_{1920}(1363,\cdot)\) \(\chi_{1920}(1387,\cdot)\) \(\chi_{1920}(1603,\cdot)\) \(\chi_{1920}(1627,\cdot)\) \(\chi_{1920}(1843,\cdot)\) \(\chi_{1920}(1867,\cdot)\)

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: 32.32.187072209578355573530071658587684226515959365500928000000000000000000000000.2

Values on generators

\((511,901,641,1537)\) → \((-1,e\left(\frac{27}{32}\right),1,-i)\)

First values

\(a\) \(-1\)\(1\)\(7\)\(11\)\(13\)\(17\)\(19\)\(23\)\(29\)\(31\)\(37\)\(41\)
\( \chi_{ 1920 }(1123, a) \) \(1\)\(1\)\(e\left(\frac{11}{16}\right)\)\(e\left(\frac{7}{32}\right)\)\(e\left(\frac{29}{32}\right)\)\(e\left(\frac{3}{8}\right)\)\(e\left(\frac{13}{32}\right)\)\(e\left(\frac{9}{16}\right)\)\(e\left(\frac{9}{32}\right)\)\(i\)\(e\left(\frac{27}{32}\right)\)\(e\left(\frac{5}{16}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1920 }(1123,a) \;\) at \(\;a = \) e.g. 2