Properties

Label 689.523
Modulus $689$
Conductor $689$
Order $39$
Real no
Primitive yes
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(689, base_ring=CyclotomicField(78))
 
M = H._module
 
chi = DirichletCharacter(H, M([26,60]))
 
pari: [g,chi] = znchar(Mod(523,689))
 

Basic properties

Modulus: \(689\)
Conductor: \(689\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(39\)
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 689.y

\(\chi_{689}(16,\cdot)\) \(\chi_{689}(42,\cdot)\) \(\chi_{689}(68,\cdot)\) \(\chi_{689}(81,\cdot)\) \(\chi_{689}(100,\cdot)\) \(\chi_{689}(152,\cdot)\) \(\chi_{689}(172,\cdot)\) \(\chi_{689}(256,\cdot)\) \(\chi_{689}(289,\cdot)\) \(\chi_{689}(328,\cdot)\) \(\chi_{689}(334,\cdot)\) \(\chi_{689}(354,\cdot)\) \(\chi_{689}(360,\cdot)\) \(\chi_{689}(367,\cdot)\) \(\chi_{689}(386,\cdot)\) \(\chi_{689}(399,\cdot)\) \(\chi_{689}(471,\cdot)\) \(\chi_{689}(490,\cdot)\) \(\chi_{689}(523,\cdot)\) \(\chi_{689}(607,\cdot)\) \(\chi_{689}(627,\cdot)\) \(\chi_{689}(646,\cdot)\) \(\chi_{689}(672,\cdot)\) \(\chi_{689}(685,\cdot)\)

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: $\Q(\zeta_{39})$
Fixed field: Number field defined by a degree 39 polynomial

Values on generators

\((54,638)\) → \((e\left(\frac{1}{3}\right),e\left(\frac{10}{13}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(3\)\(4\)\(5\)\(6\)\(7\)\(8\)\(9\)\(10\)\(11\)
\( \chi_{ 689 }(523, a) \) \(1\)\(1\)\(e\left(\frac{4}{39}\right)\)\(e\left(\frac{16}{39}\right)\)\(e\left(\frac{8}{39}\right)\)\(e\left(\frac{2}{13}\right)\)\(e\left(\frac{20}{39}\right)\)\(e\left(\frac{17}{39}\right)\)\(e\left(\frac{4}{13}\right)\)\(e\left(\frac{32}{39}\right)\)\(e\left(\frac{10}{39}\right)\)\(e\left(\frac{37}{39}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 689 }(523,a) \;\) at \(\;a = \) e.g. 2

Gauss sum

sage: chi.gauss_sum(a)
 
pari: znchargauss(g,chi,a)
 
\( \tau_{ a }( \chi_{ 689 }(523,·) )\;\) at \(\;a = \) e.g. 2

Jacobi sum

sage: chi.jacobi_sum(n)
 
\( J(\chi_{ 689 }(523,·),\chi_{ 689 }(n,·)) \;\) for \( \; n = \) e.g. 1

Kloosterman sum

sage: chi.kloosterman_sum(a,b)
 
\(K(a,b,\chi_{ 689 }(523,·)) \;\) at \(\; a,b = \) e.g. 1,2