Properties

Label 1344.13
Modulus $1344$
Conductor $448$
Order $16$
Real no
Primitive no
Minimal yes
Parity odd

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1344, base_ring=CyclotomicField(16))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,15,0,8]))
 
pari: [g,chi] = znchar(Mod(13,1344))
 

Basic properties

Modulus: \(1344\)
Conductor: \(448\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(16\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{448}(13,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: odd
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 1344.ck

\(\chi_{1344}(13,\cdot)\) \(\chi_{1344}(181,\cdot)\) \(\chi_{1344}(349,\cdot)\) \(\chi_{1344}(517,\cdot)\) \(\chi_{1344}(685,\cdot)\) \(\chi_{1344}(853,\cdot)\) \(\chi_{1344}(1021,\cdot)\) \(\chi_{1344}(1189,\cdot)\)

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: 16.0.3484608386920116940487669055488.4

Values on generators

\((127,1093,449,577)\) → \((1,e\left(\frac{15}{16}\right),1,-1)\)

First values

\(a\) \(-1\)\(1\)\(5\)\(11\)\(13\)\(17\)\(19\)\(23\)\(25\)\(29\)\(31\)\(37\)
\( \chi_{ 1344 }(13, a) \) \(-1\)\(1\)\(e\left(\frac{7}{16}\right)\)\(e\left(\frac{11}{16}\right)\)\(e\left(\frac{9}{16}\right)\)\(-i\)\(e\left(\frac{1}{16}\right)\)\(e\left(\frac{1}{8}\right)\)\(e\left(\frac{7}{8}\right)\)\(e\left(\frac{5}{16}\right)\)\(1\)\(e\left(\frac{7}{16}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1344 }(13,a) \;\) at \(\;a = \) e.g. 2