Properties

Label 7942.5
Modulus $7942$
Conductor $3971$
Order $855$
Real no
Primitive no
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(7942, base_ring=CyclotomicField(1710))
 
M = H._module
 
chi = DirichletCharacter(H, M([684,1160]))
 
pari: [g,chi] = znchar(Mod(5,7942))
 

Basic properties

Modulus: \(7942\)
Conductor: \(3971\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(855\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{3971}(5,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 7942.bs

\(\chi_{7942}(5,\cdot)\) \(\chi_{7942}(9,\cdot)\) \(\chi_{7942}(25,\cdot)\) \(\chi_{7942}(47,\cdot)\) \(\chi_{7942}(81,\cdot)\) \(\chi_{7942}(93,\cdot)\) \(\chi_{7942}(119,\cdot)\) \(\chi_{7942}(137,\cdot)\) \(\chi_{7942}(157,\cdot)\) \(\chi_{7942}(169,\cdot)\) \(\chi_{7942}(207,\cdot)\) \(\chi_{7942}(213,\cdot)\) \(\chi_{7942}(225,\cdot)\) \(\chi_{7942}(251,\cdot)\) \(\chi_{7942}(289,\cdot)\) \(\chi_{7942}(291,\cdot)\) \(\chi_{7942}(301,\cdot)\) \(\chi_{7942}(313,\cdot)\) \(\chi_{7942}(339,\cdot)\) \(\chi_{7942}(367,\cdot)\) \(\chi_{7942}(377,\cdot)\) \(\chi_{7942}(405,\cdot)\) \(\chi_{7942}(427,\cdot)\) \(\chi_{7942}(443,\cdot)\) \(\chi_{7942}(465,\cdot)\) \(\chi_{7942}(499,\cdot)\) \(\chi_{7942}(511,\cdot)\) \(\chi_{7942}(537,\cdot)\) \(\chi_{7942}(555,\cdot)\) \(\chi_{7942}(575,\cdot)\) ...

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: $\Q(\zeta_{855})$
Fixed field: Number field defined by a degree 855 polynomial (not computed)

Values on generators

\((5777,6139)\) → \((e\left(\frac{2}{5}\right),e\left(\frac{116}{171}\right))\)

First values

\(a\) \(-1\)\(1\)\(3\)\(5\)\(7\)\(9\)\(13\)\(15\)\(17\)\(21\)\(23\)\(25\)
\( \chi_{ 7942 }(5, a) \) \(1\)\(1\)\(e\left(\frac{421}{855}\right)\)\(e\left(\frac{838}{855}\right)\)\(e\left(\frac{158}{285}\right)\)\(e\left(\frac{842}{855}\right)\)\(e\left(\frac{497}{855}\right)\)\(e\left(\frac{404}{855}\right)\)\(e\left(\frac{778}{855}\right)\)\(e\left(\frac{8}{171}\right)\)\(e\left(\frac{7}{171}\right)\)\(e\left(\frac{821}{855}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 7942 }(5,a) \;\) at \(\;a = \) e.g. 2