Properties

Label 639.8
Modulus $639$
Conductor $213$
Order $70$
Real no
Primitive no
Minimal yes
Parity odd

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(639, base_ring=CyclotomicField(70))
 
M = H._module
 
chi = DirichletCharacter(H, M([35,18]))
 
pari: [g,chi] = znchar(Mod(8,639))
 

Basic properties

Modulus: \(639\)
Conductor: \(213\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(70\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{213}(8,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: odd
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 639.ba

\(\chi_{639}(8,\cdot)\) \(\chi_{639}(80,\cdot)\) \(\chi_{639}(89,\cdot)\) \(\chi_{639}(98,\cdot)\) \(\chi_{639}(107,\cdot)\) \(\chi_{639}(152,\cdot)\) \(\chi_{639}(161,\cdot)\) \(\chi_{639}(206,\cdot)\) \(\chi_{639}(215,\cdot)\) \(\chi_{639}(242,\cdot)\) \(\chi_{639}(251,\cdot)\) \(\chi_{639}(287,\cdot)\) \(\chi_{639}(296,\cdot)\) \(\chi_{639}(359,\cdot)\) \(\chi_{639}(395,\cdot)\) \(\chi_{639}(404,\cdot)\) \(\chi_{639}(413,\cdot)\) \(\chi_{639}(476,\cdot)\) \(\chi_{639}(503,\cdot)\) \(\chi_{639}(512,\cdot)\) \(\chi_{639}(521,\cdot)\) \(\chi_{639}(557,\cdot)\) \(\chi_{639}(584,\cdot)\) \(\chi_{639}(611,\cdot)\)

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: $\Q(\zeta_{35})$
Fixed field: Number field defined by a degree 70 polynomial

Values on generators

\((569,433)\) → \((-1,e\left(\frac{9}{35}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(4\)\(5\)\(7\)\(8\)\(10\)\(11\)\(13\)\(14\)\(16\)
\( \chi_{ 639 }(8, a) \) \(-1\)\(1\)\(e\left(\frac{3}{70}\right)\)\(e\left(\frac{3}{35}\right)\)\(e\left(\frac{7}{10}\right)\)\(e\left(\frac{9}{35}\right)\)\(e\left(\frac{9}{70}\right)\)\(e\left(\frac{26}{35}\right)\)\(e\left(\frac{33}{70}\right)\)\(e\left(\frac{1}{35}\right)\)\(e\left(\frac{3}{10}\right)\)\(e\left(\frac{6}{35}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 639 }(8,a) \;\) at \(\;a = \) e.g. 2

Gauss sum

sage: chi.gauss_sum(a)
 
pari: znchargauss(g,chi,a)
 
\( \tau_{ a }( \chi_{ 639 }(8,·) )\;\) at \(\;a = \) e.g. 2

Jacobi sum

sage: chi.jacobi_sum(n)
 
\( J(\chi_{ 639 }(8,·),\chi_{ 639 }(n,·)) \;\) for \( \; n = \) e.g. 1

Kloosterman sum

sage: chi.kloosterman_sum(a,b)
 
\(K(a,b,\chi_{ 639 }(8,·)) \;\) at \(\; a,b = \) e.g. 1,2