Properties

Label 6400.21
Modulus $6400$
Conductor $6400$
Order $320$
Real no
Primitive yes
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(6400, base_ring=CyclotomicField(320))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,225,192]))
 
pari: [g,chi] = znchar(Mod(21,6400))
 

Basic properties

Modulus: \(6400\)
Conductor: \(6400\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(320\)
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 6400.dx

\(\chi_{6400}(21,\cdot)\) \(\chi_{6400}(61,\cdot)\) \(\chi_{6400}(141,\cdot)\) \(\chi_{6400}(181,\cdot)\) \(\chi_{6400}(221,\cdot)\) \(\chi_{6400}(261,\cdot)\) \(\chi_{6400}(341,\cdot)\) \(\chi_{6400}(381,\cdot)\) \(\chi_{6400}(421,\cdot)\) \(\chi_{6400}(461,\cdot)\) \(\chi_{6400}(541,\cdot)\) \(\chi_{6400}(581,\cdot)\) \(\chi_{6400}(621,\cdot)\) \(\chi_{6400}(661,\cdot)\) \(\chi_{6400}(741,\cdot)\) \(\chi_{6400}(781,\cdot)\) \(\chi_{6400}(821,\cdot)\) \(\chi_{6400}(861,\cdot)\) \(\chi_{6400}(941,\cdot)\) \(\chi_{6400}(981,\cdot)\) \(\chi_{6400}(1021,\cdot)\) \(\chi_{6400}(1061,\cdot)\) \(\chi_{6400}(1141,\cdot)\) \(\chi_{6400}(1181,\cdot)\) \(\chi_{6400}(1221,\cdot)\) \(\chi_{6400}(1261,\cdot)\) \(\chi_{6400}(1341,\cdot)\) \(\chi_{6400}(1381,\cdot)\) \(\chi_{6400}(1421,\cdot)\) \(\chi_{6400}(1461,\cdot)\) ...

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: $\Q(\zeta_{320})$
Fixed field: Number field defined by a degree 320 polynomial (not computed)

Values on generators

\((4351,4101,5377)\) → \((1,e\left(\frac{45}{64}\right),e\left(\frac{3}{5}\right))\)

First values

\(a\) \(-1\)\(1\)\(3\)\(7\)\(9\)\(11\)\(13\)\(17\)\(19\)\(21\)\(23\)\(27\)
\( \chi_{ 6400 }(21, a) \) \(1\)\(1\)\(e\left(\frac{259}{320}\right)\)\(e\left(\frac{1}{32}\right)\)\(e\left(\frac{99}{160}\right)\)\(e\left(\frac{117}{320}\right)\)\(e\left(\frac{143}{320}\right)\)\(e\left(\frac{39}{80}\right)\)\(e\left(\frac{311}{320}\right)\)\(e\left(\frac{269}{320}\right)\)\(e\left(\frac{71}{160}\right)\)\(e\left(\frac{137}{320}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 6400 }(21,a) \;\) at \(\;a = \) e.g. 2