Properties

Label 1568.9
Modulus $1568$
Conductor $784$
Order $84$
Real no
Primitive no
Minimal no
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1568, base_ring=CyclotomicField(84))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,63,4]))
 
pari: [g,chi] = znchar(Mod(9,1568))
 

Basic properties

Modulus: \(1568\)
Conductor: \(784\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(84\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{784}(205,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: no
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 1568.cf

\(\chi_{1568}(9,\cdot)\) \(\chi_{1568}(25,\cdot)\) \(\chi_{1568}(121,\cdot)\) \(\chi_{1568}(137,\cdot)\) \(\chi_{1568}(233,\cdot)\) \(\chi_{1568}(249,\cdot)\) \(\chi_{1568}(345,\cdot)\) \(\chi_{1568}(457,\cdot)\) \(\chi_{1568}(473,\cdot)\) \(\chi_{1568}(585,\cdot)\) \(\chi_{1568}(681,\cdot)\) \(\chi_{1568}(697,\cdot)\) \(\chi_{1568}(793,\cdot)\) \(\chi_{1568}(809,\cdot)\) \(\chi_{1568}(905,\cdot)\) \(\chi_{1568}(921,\cdot)\) \(\chi_{1568}(1017,\cdot)\) \(\chi_{1568}(1033,\cdot)\) \(\chi_{1568}(1129,\cdot)\) \(\chi_{1568}(1241,\cdot)\) \(\chi_{1568}(1257,\cdot)\) \(\chi_{1568}(1369,\cdot)\) \(\chi_{1568}(1465,\cdot)\) \(\chi_{1568}(1481,\cdot)\)

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

\((1471,197,1473)\) → \((1,-i,e\left(\frac{1}{21}\right))\)

First values

\(a\) \(-1\)\(1\)\(3\)\(5\)\(9\)\(11\)\(13\)\(15\)\(17\)\(19\)\(23\)\(25\)
\( \chi_{ 1568 }(9, a) \) \(1\)\(1\)\(e\left(\frac{25}{84}\right)\)\(e\left(\frac{11}{84}\right)\)\(e\left(\frac{25}{42}\right)\)\(e\left(\frac{55}{84}\right)\)\(e\left(\frac{23}{28}\right)\)\(e\left(\frac{3}{7}\right)\)\(e\left(\frac{4}{21}\right)\)\(e\left(\frac{11}{12}\right)\)\(e\left(\frac{13}{42}\right)\)\(e\left(\frac{11}{42}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1568 }(9,a) \;\) at \(\;a = \) e.g. 2