Properties

Label 1224.91
Modulus $1224$
Conductor $136$
Order $16$
Real no
Primitive no
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1224, base_ring=CyclotomicField(16))
 
M = H._module
 
chi = DirichletCharacter(H, M([8,8,0,15]))
 
pari: [g,chi] = znchar(Mod(91,1224))
 

Basic properties

Modulus: \(1224\)
Conductor: \(136\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(16\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{136}(91,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 1224.cj

\(\chi_{1224}(91,\cdot)\) \(\chi_{1224}(163,\cdot)\) \(\chi_{1224}(235,\cdot)\) \(\chi_{1224}(379,\cdot)\) \(\chi_{1224}(811,\cdot)\) \(\chi_{1224}(955,\cdot)\) \(\chi_{1224}(1027,\cdot)\) \(\chi_{1224}(1099,\cdot)\)

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: \(\Q(\zeta_{16})\)
Fixed field: 16.16.48023489818559305679372288.1

Values on generators

\((919,613,137,649)\) → \((-1,-1,1,e\left(\frac{15}{16}\right))\)

First values

\(a\) \(-1\)\(1\)\(5\)\(7\)\(11\)\(13\)\(19\)\(23\)\(25\)\(29\)\(31\)\(35\)
\( \chi_{ 1224 }(91, a) \) \(1\)\(1\)\(e\left(\frac{3}{16}\right)\)\(e\left(\frac{13}{16}\right)\)\(e\left(\frac{9}{16}\right)\)\(i\)\(e\left(\frac{1}{8}\right)\)\(e\left(\frac{9}{16}\right)\)\(e\left(\frac{3}{8}\right)\)\(e\left(\frac{11}{16}\right)\)\(e\left(\frac{15}{16}\right)\)\(1\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1224 }(91,a) \;\) at \(\;a = \) e.g. 2