Properties

Label 1568.27
Modulus $1568$
Conductor $1568$
Order $56$
Real no
Primitive yes
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1568, base_ring=CyclotomicField(56))
 
M = H._module
 
chi = DirichletCharacter(H, M([28,7,4]))
 
pari: [g,chi] = znchar(Mod(27,1568))
 

Basic properties

Modulus: \(1568\)
Conductor: \(1568\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(56\)
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 1568.ca

\(\chi_{1568}(27,\cdot)\) \(\chi_{1568}(83,\cdot)\) \(\chi_{1568}(139,\cdot)\) \(\chi_{1568}(251,\cdot)\) \(\chi_{1568}(307,\cdot)\) \(\chi_{1568}(363,\cdot)\) \(\chi_{1568}(419,\cdot)\) \(\chi_{1568}(475,\cdot)\) \(\chi_{1568}(531,\cdot)\) \(\chi_{1568}(643,\cdot)\) \(\chi_{1568}(699,\cdot)\) \(\chi_{1568}(755,\cdot)\) \(\chi_{1568}(811,\cdot)\) \(\chi_{1568}(867,\cdot)\) \(\chi_{1568}(923,\cdot)\) \(\chi_{1568}(1035,\cdot)\) \(\chi_{1568}(1091,\cdot)\) \(\chi_{1568}(1147,\cdot)\) \(\chi_{1568}(1203,\cdot)\) \(\chi_{1568}(1259,\cdot)\) \(\chi_{1568}(1315,\cdot)\) \(\chi_{1568}(1427,\cdot)\) \(\chi_{1568}(1483,\cdot)\) \(\chi_{1568}(1539,\cdot)\)

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: $\Q(\zeta_{56})$
Fixed field: Number field defined by a degree 56 polynomial

Values on generators

\((1471,197,1473)\) → \((-1,e\left(\frac{1}{8}\right),e\left(\frac{1}{14}\right))\)

First values

\(a\) \(-1\)\(1\)\(3\)\(5\)\(9\)\(11\)\(13\)\(15\)\(17\)\(19\)\(23\)\(25\)
\( \chi_{ 1568 }(27, a) \) \(1\)\(1\)\(e\left(\frac{53}{56}\right)\)\(e\left(\frac{11}{56}\right)\)\(e\left(\frac{25}{28}\right)\)\(e\left(\frac{55}{56}\right)\)\(e\left(\frac{13}{56}\right)\)\(e\left(\frac{1}{7}\right)\)\(e\left(\frac{2}{7}\right)\)\(e\left(\frac{7}{8}\right)\)\(e\left(\frac{27}{28}\right)\)\(e\left(\frac{11}{28}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1568 }(27,a) \;\) at \(\;a = \) e.g. 2