Properties

Label 3920.123
Modulus $3920$
Conductor $3920$
Order $84$
Real no
Primitive yes
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(3920, base_ring=CyclotomicField(84))
 
M = H._module
 
chi = DirichletCharacter(H, M([42,21,63,32]))
 
pari: [g,chi] = znchar(Mod(123,3920))
 

Basic properties

Modulus: \(3920\)
Conductor: \(3920\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(84\)
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 3920.fh

\(\chi_{3920}(123,\cdot)\) \(\chi_{3920}(387,\cdot)\) \(\chi_{3920}(443,\cdot)\) \(\chi_{3920}(627,\cdot)\) \(\chi_{3920}(683,\cdot)\) \(\chi_{3920}(947,\cdot)\) \(\chi_{3920}(1003,\cdot)\) \(\chi_{3920}(1187,\cdot)\) \(\chi_{3920}(1507,\cdot)\) \(\chi_{3920}(1563,\cdot)\) \(\chi_{3920}(1747,\cdot)\) \(\chi_{3920}(1803,\cdot)\) \(\chi_{3920}(2067,\cdot)\) \(\chi_{3920}(2123,\cdot)\) \(\chi_{3920}(2307,\cdot)\) \(\chi_{3920}(2363,\cdot)\) \(\chi_{3920}(2683,\cdot)\) \(\chi_{3920}(2867,\cdot)\) \(\chi_{3920}(2923,\cdot)\) \(\chi_{3920}(3187,\cdot)\) \(\chi_{3920}(3243,\cdot)\) \(\chi_{3920}(3427,\cdot)\) \(\chi_{3920}(3483,\cdot)\) \(\chi_{3920}(3747,\cdot)\)

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: $\Q(\zeta_{84})$
Fixed field: Number field defined by a degree 84 polynomial

Values on generators

\((1471,981,3137,3041)\) → \((-1,i,-i,e\left(\frac{8}{21}\right))\)

First values

\(a\) \(-1\)\(1\)\(3\)\(9\)\(11\)\(13\)\(17\)\(19\)\(23\)\(27\)\(29\)\(31\)
\( \chi_{ 3920 }(123, a) \) \(1\)\(1\)\(e\left(\frac{37}{42}\right)\)\(e\left(\frac{16}{21}\right)\)\(e\left(\frac{83}{84}\right)\)\(e\left(\frac{4}{7}\right)\)\(e\left(\frac{23}{84}\right)\)\(e\left(\frac{1}{12}\right)\)\(e\left(\frac{61}{84}\right)\)\(e\left(\frac{9}{14}\right)\)\(e\left(\frac{3}{28}\right)\)\(e\left(\frac{1}{6}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 3920 }(123,a) \;\) at \(\;a = \) e.g. 2