Properties

Label 688.3
Modulus $688$
Conductor $688$
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(688, base_ring=CyclotomicField(84))
 
M = H._module
 
chi = DirichletCharacter(H, M([42,63,2]))
 
pari: [g,chi] = znchar(Mod(3,688))
 

Basic properties

Modulus: \(688\)
Conductor: \(688\)
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 688.bu

\(\chi_{688}(3,\cdot)\) \(\chi_{688}(19,\cdot)\) \(\chi_{688}(91,\cdot)\) \(\chi_{688}(115,\cdot)\) \(\chi_{688}(147,\cdot)\) \(\chi_{688}(155,\cdot)\) \(\chi_{688}(163,\cdot)\) \(\chi_{688}(227,\cdot)\) \(\chi_{688}(235,\cdot)\) \(\chi_{688}(243,\cdot)\) \(\chi_{688}(291,\cdot)\) \(\chi_{688}(331,\cdot)\) \(\chi_{688}(347,\cdot)\) \(\chi_{688}(363,\cdot)\) \(\chi_{688}(435,\cdot)\) \(\chi_{688}(459,\cdot)\) \(\chi_{688}(491,\cdot)\) \(\chi_{688}(499,\cdot)\) \(\chi_{688}(507,\cdot)\) \(\chi_{688}(571,\cdot)\) \(\chi_{688}(579,\cdot)\) \(\chi_{688}(587,\cdot)\) \(\chi_{688}(635,\cdot)\) \(\chi_{688}(675,\cdot)\)

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

\((431,517,433)\) → \((-1,-i,e\left(\frac{1}{42}\right))\)

First values

\(a\) \(-1\)\(1\)\(3\)\(5\)\(7\)\(9\)\(11\)\(13\)\(15\)\(17\)\(19\)\(21\)
\( \chi_{ 688 }(3, a) \) \(1\)\(1\)\(e\left(\frac{65}{84}\right)\)\(e\left(\frac{29}{84}\right)\)\(e\left(\frac{5}{6}\right)\)\(e\left(\frac{23}{42}\right)\)\(e\left(\frac{27}{28}\right)\)\(e\left(\frac{1}{84}\right)\)\(e\left(\frac{5}{42}\right)\)\(e\left(\frac{19}{21}\right)\)\(e\left(\frac{17}{84}\right)\)\(e\left(\frac{17}{28}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 688 }(3,a) \;\) at \(\;a = \) e.g. 2

Gauss sum

sage: chi.gauss_sum(a)
 
pari: znchargauss(g,chi,a)
 
\( \tau_{ a }( \chi_{ 688 }(3,·) )\;\) at \(\;a = \) e.g. 2

Jacobi sum

sage: chi.jacobi_sum(n)
 
\( J(\chi_{ 688 }(3,·),\chi_{ 688 }(n,·)) \;\) for \( \; n = \) e.g. 1

Kloosterman sum

sage: chi.kloosterman_sum(a,b)
 
\(K(a,b,\chi_{ 688 }(3,·)) \;\) at \(\; a,b = \) e.g. 1,2