Properties

Label 16.f
Modulus $16$
Conductor $16$
Order $4$
Real no
Primitive yes
Minimal yes
Parity odd

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(16, base_ring=CyclotomicField(4))
 
M = H._module
 
chi = DirichletCharacter(H, M([2,3]))
 
chi.galois_orbit()
 
[g,chi] = znchar(Mod(3,16))
 
order = charorder(g,chi)
 
[ charpow(g,chi, k % order) | k <-[1..order-1], gcd(k,order)==1 ]
 

Basic properties

Modulus: \(16\)
Conductor: \(16\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(4\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: yes
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: odd
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Related number fields

Field of values: \(\mathbb{Q}(i)\)
Fixed field: 4.0.2048.2

Characters in Galois orbit

Character \(-1\) \(1\) \(3\) \(5\) \(7\) \(9\) \(11\) \(13\)
\(\chi_{16}(3,\cdot)\) \(-1\) \(1\) \(-i\) \(-i\) \(1\) \(-1\) \(i\) \(i\)
\(\chi_{16}(11,\cdot)\) \(-1\) \(1\) \(i\) \(i\) \(1\) \(-1\) \(-i\) \(-i\)