Properties

Label 2940.47
Modulus $2940$
Conductor $2940$
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(2940, base_ring=CyclotomicField(84))
 
M = H._module
 
chi = DirichletCharacter(H, M([42,42,21,10]))
 
pari: [g,chi] = znchar(Mod(47,2940))
 

Basic properties

Modulus: \(2940\)
Conductor: \(2940\)
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 2940.dq

\(\chi_{2940}(47,\cdot)\) \(\chi_{2940}(143,\cdot)\) \(\chi_{2940}(383,\cdot)\) \(\chi_{2940}(467,\cdot)\) \(\chi_{2940}(563,\cdot)\) \(\chi_{2940}(647,\cdot)\) \(\chi_{2940}(887,\cdot)\) \(\chi_{2940}(983,\cdot)\) \(\chi_{2940}(1067,\cdot)\) \(\chi_{2940}(1223,\cdot)\) \(\chi_{2940}(1307,\cdot)\) \(\chi_{2940}(1487,\cdot)\) \(\chi_{2940}(1643,\cdot)\) \(\chi_{2940}(1727,\cdot)\) \(\chi_{2940}(1823,\cdot)\) \(\chi_{2940}(1907,\cdot)\) \(\chi_{2940}(2063,\cdot)\) \(\chi_{2940}(2147,\cdot)\) \(\chi_{2940}(2243,\cdot)\) \(\chi_{2940}(2327,\cdot)\) \(\chi_{2940}(2483,\cdot)\) \(\chi_{2940}(2663,\cdot)\) \(\chi_{2940}(2747,\cdot)\) \(\chi_{2940}(2903,\cdot)\)

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

\((1471,1961,1177,1081)\) → \((-1,-1,i,e\left(\frac{5}{42}\right))\)

First values

\(a\) \(-1\)\(1\)\(11\)\(13\)\(17\)\(19\)\(23\)\(29\)\(31\)\(37\)\(41\)\(43\)
\( \chi_{ 2940 }(47, a) \) \(1\)\(1\)\(e\left(\frac{16}{21}\right)\)\(e\left(\frac{19}{28}\right)\)\(e\left(\frac{61}{84}\right)\)\(e\left(\frac{1}{6}\right)\)\(e\left(\frac{23}{84}\right)\)\(e\left(\frac{1}{7}\right)\)\(e\left(\frac{1}{3}\right)\)\(e\left(\frac{5}{84}\right)\)\(e\left(\frac{2}{7}\right)\)\(e\left(\frac{27}{28}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 2940 }(47,a) \;\) at \(\;a = \) e.g. 2