Properties

Label 931.27
Modulus $931$
Conductor $931$
Order $42$
Real no
Primitive yes
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(931, base_ring=CyclotomicField(42))
 
M = H._module
 
chi = DirichletCharacter(H, M([3,7]))
 
pari: [g,chi] = znchar(Mod(27,931))
 

Basic properties

Modulus: \(931\)
Conductor: \(931\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(42\)
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 931.bs

\(\chi_{931}(27,\cdot)\) \(\chi_{931}(69,\cdot)\) \(\chi_{931}(160,\cdot)\) \(\chi_{931}(202,\cdot)\) \(\chi_{931}(335,\cdot)\) \(\chi_{931}(426,\cdot)\) \(\chi_{931}(468,\cdot)\) \(\chi_{931}(559,\cdot)\) \(\chi_{931}(601,\cdot)\) \(\chi_{931}(692,\cdot)\) \(\chi_{931}(825,\cdot)\) \(\chi_{931}(867,\cdot)\)

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: \(\Q(\zeta_{21})\)
Fixed field: 42.42.1376350466561877956491507496180343996145452513006789085912171301420665552543663031385512298278317365326148157.1

Values on generators

\((248,344)\) → \((e\left(\frac{1}{14}\right),e\left(\frac{1}{6}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(3\)\(4\)\(5\)\(6\)\(8\)\(9\)\(10\)\(11\)\(12\)
\( \chi_{ 931 }(27, a) \) \(1\)\(1\)\(e\left(\frac{1}{42}\right)\)\(e\left(\frac{5}{21}\right)\)\(e\left(\frac{1}{21}\right)\)\(e\left(\frac{31}{42}\right)\)\(e\left(\frac{11}{42}\right)\)\(e\left(\frac{1}{14}\right)\)\(e\left(\frac{10}{21}\right)\)\(e\left(\frac{16}{21}\right)\)\(e\left(\frac{6}{7}\right)\)\(e\left(\frac{2}{7}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 931 }(27,a) \;\) at \(\;a = \) e.g. 2

Gauss sum

sage: chi.gauss_sum(a)
 
pari: znchargauss(g,chi,a)
 
\( \tau_{ a }( \chi_{ 931 }(27,·) )\;\) at \(\;a = \) e.g. 2

Jacobi sum

sage: chi.jacobi_sum(n)
 
\( J(\chi_{ 931 }(27,·),\chi_{ 931 }(n,·)) \;\) for \( \; n = \) e.g. 1

Kloosterman sum

sage: chi.kloosterman_sum(a,b)
 
\(K(a,b,\chi_{ 931 }(27,·)) \;\) at \(\; a,b = \) e.g. 1,2