Properties

Label 1960.219
Modulus $1960$
Conductor $1960$
Order $42$
Real no
Primitive yes
Minimal yes
Parity odd

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1960, base_ring=CyclotomicField(42))
 
M = H._module
 
chi = DirichletCharacter(H, M([21,21,21,38]))
 
pari: [g,chi] = znchar(Mod(219,1960))
 

Basic properties

Modulus: \(1960\)
Conductor: \(1960\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(42\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: yes
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: odd
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 1960.cz

\(\chi_{1960}(179,\cdot)\) \(\chi_{1960}(219,\cdot)\) \(\chi_{1960}(499,\cdot)\) \(\chi_{1960}(739,\cdot)\) \(\chi_{1960}(779,\cdot)\) \(\chi_{1960}(1019,\cdot)\) \(\chi_{1960}(1299,\cdot)\) \(\chi_{1960}(1339,\cdot)\) \(\chi_{1960}(1579,\cdot)\) \(\chi_{1960}(1619,\cdot)\) \(\chi_{1960}(1859,\cdot)\) \(\chi_{1960}(1899,\cdot)\)

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: \(\Q(\zeta_{21})\)
Fixed field: Number field defined by a degree 42 polynomial

Values on generators

\((1471,981,1177,1081)\) → \((-1,-1,-1,e\left(\frac{19}{21}\right))\)

First values

\(a\) \(-1\)\(1\)\(3\)\(9\)\(11\)\(13\)\(17\)\(19\)\(23\)\(27\)\(29\)\(31\)
\( \chi_{ 1960 }(219, a) \) \(-1\)\(1\)\(e\left(\frac{17}{42}\right)\)\(e\left(\frac{17}{21}\right)\)\(e\left(\frac{4}{21}\right)\)\(e\left(\frac{6}{7}\right)\)\(e\left(\frac{5}{42}\right)\)\(e\left(\frac{2}{3}\right)\)\(e\left(\frac{8}{21}\right)\)\(e\left(\frac{3}{14}\right)\)\(e\left(\frac{11}{14}\right)\)\(e\left(\frac{5}{6}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1960 }(219,a) \;\) at \(\;a = \) e.g. 2