Properties

Label 1872.469
Modulus $1872$
Conductor $16$
Order $4$
Real no
Primitive no
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1872, base_ring=CyclotomicField(4))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,1,0,0]))
 
pari: [g,chi] = znchar(Mod(469,1872))
 

Basic properties

Modulus: \(1872\)
Conductor: \(16\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(4\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{16}(5,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 1872.ba

\(\chi_{1872}(469,\cdot)\) \(\chi_{1872}(1405,\cdot)\)

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: \(\Q(\sqrt{-1}) \)
Fixed field: \(\Q(\zeta_{16})^+\)

Values on generators

\((703,469,209,145)\) → \((1,i,1,1)\)

First values

\(a\) \(-1\)\(1\)\(5\)\(7\)\(11\)\(17\)\(19\)\(23\)\(25\)\(29\)\(31\)\(35\)
\( \chi_{ 1872 }(469, a) \) \(1\)\(1\)\(i\)\(-1\)\(i\)\(1\)\(-i\)\(-1\)\(-1\)\(-i\)\(1\)\(-i\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1872 }(469,a) \;\) at \(\;a = \) e.g. 2