Properties

Label 1617.428
Modulus $1617$
Conductor $1617$
Order $14$
Real no
Primitive yes
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1617, base_ring=CyclotomicField(14))
 
M = H._module
 
chi = DirichletCharacter(H, M([7,4,7]))
 
pari: [g,chi] = znchar(Mod(428,1617))
 

Basic properties

Modulus: \(1617\)
Conductor: \(1617\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(14\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: yes
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 1617.ba

\(\chi_{1617}(428,\cdot)\) \(\chi_{1617}(659,\cdot)\) \(\chi_{1617}(890,\cdot)\) \(\chi_{1617}(1121,\cdot)\) \(\chi_{1617}(1352,\cdot)\) \(\chi_{1617}(1583,\cdot)\)

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: \(\Q(\zeta_{7})\)
Fixed field: Number field defined by a degree 14 polynomial

Values on generators

\((1079,199,442)\) → \((-1,e\left(\frac{2}{7}\right),-1)\)

First values

\(a\) \(-1\)\(1\)\(2\)\(4\)\(5\)\(8\)\(10\)\(13\)\(16\)\(17\)\(19\)\(20\)
\( \chi_{ 1617 }(428, a) \) \(1\)\(1\)\(e\left(\frac{3}{7}\right)\)\(e\left(\frac{6}{7}\right)\)\(e\left(\frac{11}{14}\right)\)\(e\left(\frac{2}{7}\right)\)\(e\left(\frac{3}{14}\right)\)\(e\left(\frac{13}{14}\right)\)\(e\left(\frac{5}{7}\right)\)\(e\left(\frac{1}{7}\right)\)\(-1\)\(e\left(\frac{9}{14}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1617 }(428,a) \;\) at \(\;a = \) e.g. 2