Properties

Label 7220.379
Modulus $7220$
Conductor $7220$
Order $38$
Real no
Primitive yes
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(7220, base_ring=CyclotomicField(38))
 
M = H._module
 
chi = DirichletCharacter(H, M([19,19,31]))
 
pari: [g,chi] = znchar(Mod(379,7220))
 

Basic properties

Modulus: \(7220\)
Conductor: \(7220\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(38\)
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 7220.bp

\(\chi_{7220}(379,\cdot)\) \(\chi_{7220}(759,\cdot)\) \(\chi_{7220}(1139,\cdot)\) \(\chi_{7220}(1519,\cdot)\) \(\chi_{7220}(1899,\cdot)\) \(\chi_{7220}(2279,\cdot)\) \(\chi_{7220}(2659,\cdot)\) \(\chi_{7220}(3039,\cdot)\) \(\chi_{7220}(3419,\cdot)\) \(\chi_{7220}(3799,\cdot)\) \(\chi_{7220}(4179,\cdot)\) \(\chi_{7220}(4559,\cdot)\) \(\chi_{7220}(4939,\cdot)\) \(\chi_{7220}(5319,\cdot)\) \(\chi_{7220}(5699,\cdot)\) \(\chi_{7220}(6079,\cdot)\) \(\chi_{7220}(6459,\cdot)\) \(\chi_{7220}(6839,\cdot)\)

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: \(\Q(\zeta_{19})\)
Fixed field: Number field defined by a degree 38 polynomial

Values on generators

\((3611,5777,6861)\) → \((-1,-1,e\left(\frac{31}{38}\right))\)

First values

\(a\) \(-1\)\(1\)\(3\)\(7\)\(9\)\(11\)\(13\)\(17\)\(21\)\(23\)\(27\)\(29\)
\( \chi_{ 7220 }(379, a) \) \(1\)\(1\)\(e\left(\frac{15}{38}\right)\)\(e\left(\frac{7}{19}\right)\)\(e\left(\frac{15}{19}\right)\)\(e\left(\frac{27}{38}\right)\)\(e\left(\frac{17}{19}\right)\)\(e\left(\frac{33}{38}\right)\)\(e\left(\frac{29}{38}\right)\)\(e\left(\frac{2}{19}\right)\)\(e\left(\frac{7}{38}\right)\)\(e\left(\frac{33}{38}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 7220 }(379,a) \;\) at \(\;a = \) e.g. 2