Properties

Label 3840.163
Modulus $3840$
Conductor $1280$
Order $64$
Real no
Primitive no
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(3840, base_ring=CyclotomicField(64))
 
M = H._module
 
chi = DirichletCharacter(H, M([32,43,0,48]))
 
pari: [g,chi] = znchar(Mod(163,3840))
 

Basic properties

Modulus: \(3840\)
Conductor: \(1280\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(64\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{1280}(163,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 3840.ds

\(\chi_{3840}(163,\cdot)\) \(\chi_{3840}(187,\cdot)\) \(\chi_{3840}(403,\cdot)\) \(\chi_{3840}(427,\cdot)\) \(\chi_{3840}(643,\cdot)\) \(\chi_{3840}(667,\cdot)\) \(\chi_{3840}(883,\cdot)\) \(\chi_{3840}(907,\cdot)\) \(\chi_{3840}(1123,\cdot)\) \(\chi_{3840}(1147,\cdot)\) \(\chi_{3840}(1363,\cdot)\) \(\chi_{3840}(1387,\cdot)\) \(\chi_{3840}(1603,\cdot)\) \(\chi_{3840}(1627,\cdot)\) \(\chi_{3840}(1843,\cdot)\) \(\chi_{3840}(1867,\cdot)\) \(\chi_{3840}(2083,\cdot)\) \(\chi_{3840}(2107,\cdot)\) \(\chi_{3840}(2323,\cdot)\) \(\chi_{3840}(2347,\cdot)\) \(\chi_{3840}(2563,\cdot)\) \(\chi_{3840}(2587,\cdot)\) \(\chi_{3840}(2803,\cdot)\) \(\chi_{3840}(2827,\cdot)\) \(\chi_{3840}(3043,\cdot)\) \(\chi_{3840}(3067,\cdot)\) \(\chi_{3840}(3283,\cdot)\) \(\chi_{3840}(3307,\cdot)\) \(\chi_{3840}(3523,\cdot)\) \(\chi_{3840}(3547,\cdot)\) ...

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: $\Q(\zeta_{64})$
Fixed field: Number field defined by a degree 64 polynomial

Values on generators

\((511,2821,2561,1537)\) → \((-1,e\left(\frac{43}{64}\right),1,-i)\)

First values

\(a\) \(-1\)\(1\)\(7\)\(11\)\(13\)\(17\)\(19\)\(23\)\(29\)\(31\)\(37\)\(41\)
\( \chi_{ 3840 }(163, a) \) \(1\)\(1\)\(e\left(\frac{31}{32}\right)\)\(e\left(\frac{39}{64}\right)\)\(e\left(\frac{53}{64}\right)\)\(e\left(\frac{9}{16}\right)\)\(e\left(\frac{29}{64}\right)\)\(e\left(\frac{5}{32}\right)\)\(e\left(\frac{9}{64}\right)\)\(e\left(\frac{7}{8}\right)\)\(e\left(\frac{35}{64}\right)\)\(e\left(\frac{21}{32}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 3840 }(163,a) \;\) at \(\;a = \) e.g. 2