Properties

Label 106.7
Modulus $106$
Conductor $53$
Order $26$
Real no
Primitive no
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(106, base_ring=CyclotomicField(26))
 
M = H._module
 
chi = DirichletCharacter(H, M([7]))
 
pari: [g,chi] = znchar(Mod(7,106))
 

Basic properties

Modulus: \(106\)
Conductor: \(53\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(26\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{53}(7,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 106.e

\(\chi_{106}(7,\cdot)\) \(\chi_{106}(9,\cdot)\) \(\chi_{106}(11,\cdot)\) \(\chi_{106}(17,\cdot)\) \(\chi_{106}(25,\cdot)\) \(\chi_{106}(29,\cdot)\) \(\chi_{106}(37,\cdot)\) \(\chi_{106}(43,\cdot)\) \(\chi_{106}(57,\cdot)\) \(\chi_{106}(59,\cdot)\) \(\chi_{106}(91,\cdot)\) \(\chi_{106}(93,\cdot)\)

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: \(\Q(\zeta_{13})\)
Fixed field: Number field defined by a degree 26 polynomial

Values on generators

\(55\) → \(e\left(\frac{7}{26}\right)\)

First values

\(a\) \(-1\)\(1\)\(3\)\(5\)\(7\)\(9\)\(11\)\(13\)\(15\)\(17\)\(19\)\(21\)
\( \chi_{ 106 }(7, a) \) \(1\)\(1\)\(e\left(\frac{15}{26}\right)\)\(e\left(\frac{17}{26}\right)\)\(e\left(\frac{10}{13}\right)\)\(e\left(\frac{2}{13}\right)\)\(e\left(\frac{8}{13}\right)\)\(e\left(\frac{6}{13}\right)\)\(e\left(\frac{3}{13}\right)\)\(e\left(\frac{9}{13}\right)\)\(e\left(\frac{25}{26}\right)\)\(e\left(\frac{9}{26}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 106 }(7,a) \;\) at \(\;a = \) e.g. 2

Gauss sum

sage: chi.gauss_sum(a)
 
pari: znchargauss(g,chi,a)
 
\( \tau_{ a }( \chi_{ 106 }(7,·) )\;\) at \(\;a = \) e.g. 2

Jacobi sum

sage: chi.jacobi_sum(n)
 
\( J(\chi_{ 106 }(7,·),\chi_{ 106 }(n,·)) \;\) for \( \; n = \) e.g. 1

Kloosterman sum

sage: chi.kloosterman_sum(a,b)
 
\(K(a,b,\chi_{ 106 }(7,·)) \;\) at \(\; a,b = \) e.g. 1,2