Properties

Label 1600.549
Modulus $1600$
Conductor $320$
Order $16$
Real no
Primitive no
Minimal no
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1600, base_ring=CyclotomicField(16))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,9,8]))
 
pari: [g,chi] = znchar(Mod(549,1600))
 

Basic properties

Modulus: \(1600\)
Conductor: \(320\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(16\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{320}(229,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: no
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 1600.bn

\(\chi_{1600}(149,\cdot)\) \(\chi_{1600}(349,\cdot)\) \(\chi_{1600}(549,\cdot)\) \(\chi_{1600}(749,\cdot)\) \(\chi_{1600}(949,\cdot)\) \(\chi_{1600}(1149,\cdot)\) \(\chi_{1600}(1349,\cdot)\) \(\chi_{1600}(1549,\cdot)\)

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: 16.16.236118324143482260684800000000.1

Values on generators

\((1151,901,577)\) → \((1,e\left(\frac{9}{16}\right),-1)\)

First values

\(a\) \(-1\)\(1\)\(3\)\(7\)\(9\)\(11\)\(13\)\(17\)\(19\)\(21\)\(23\)\(27\)
\( \chi_{ 1600 }(549, a) \) \(1\)\(1\)\(e\left(\frac{3}{16}\right)\)\(e\left(\frac{1}{8}\right)\)\(e\left(\frac{3}{8}\right)\)\(e\left(\frac{13}{16}\right)\)\(e\left(\frac{15}{16}\right)\)\(i\)\(e\left(\frac{15}{16}\right)\)\(e\left(\frac{5}{16}\right)\)\(e\left(\frac{3}{8}\right)\)\(e\left(\frac{9}{16}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1600 }(549,a) \;\) at \(\;a = \) e.g. 2