Properties

Label 485.257
Modulus $485$
Conductor $485$
Order $32$
Real no
Primitive yes
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(485, base_ring=CyclotomicField(32))
 
M = H._module
 
chi = DirichletCharacter(H, M([8,25]))
 
pari: [g,chi] = znchar(Mod(257,485))
 

Basic properties

Modulus: \(485\)
Conductor: \(485\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(32\)
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 485.bj

\(\chi_{485}(42,\cdot)\) \(\chi_{485}(78,\cdot)\) \(\chi_{485}(152,\cdot)\) \(\chi_{485}(213,\cdot)\) \(\chi_{485}(222,\cdot)\) \(\chi_{485}(257,\cdot)\) \(\chi_{485}(337,\cdot)\) \(\chi_{485}(342,\cdot)\) \(\chi_{485}(343,\cdot)\) \(\chi_{485}(358,\cdot)\) \(\chi_{485}(368,\cdot)\) \(\chi_{485}(408,\cdot)\) \(\chi_{485}(418,\cdot)\) \(\chi_{485}(422,\cdot)\) \(\chi_{485}(433,\cdot)\) \(\chi_{485}(457,\cdot)\)

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: \(\Q(\zeta_{32})\)
Fixed field: 32.32.2318482735674757180308401186646582923236113207344277714859125196933746337890625.1

Values on generators

\((292,296)\) → \((i,e\left(\frac{25}{32}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(3\)\(4\)\(6\)\(7\)\(8\)\(9\)\(11\)\(12\)\(13\)
\( \chi_{ 485 }(257, a) \) \(1\)\(1\)\(e\left(\frac{13}{16}\right)\)\(e\left(\frac{7}{16}\right)\)\(e\left(\frac{5}{8}\right)\)\(i\)\(e\left(\frac{15}{32}\right)\)\(e\left(\frac{7}{16}\right)\)\(e\left(\frac{7}{8}\right)\)\(e\left(\frac{3}{16}\right)\)\(e\left(\frac{1}{16}\right)\)\(e\left(\frac{9}{32}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 485 }(257,a) \;\) at \(\;a = \) e.g. 2

Gauss sum

sage: chi.gauss_sum(a)
 
pari: znchargauss(g,chi,a)
 
\( \tau_{ a }( \chi_{ 485 }(257,·) )\;\) at \(\;a = \) e.g. 2

Jacobi sum

sage: chi.jacobi_sum(n)
 
\( J(\chi_{ 485 }(257,·),\chi_{ 485 }(n,·)) \;\) for \( \; n = \) e.g. 1

Kloosterman sum

sage: chi.kloosterman_sum(a,b)
 
\(K(a,b,\chi_{ 485 }(257,·)) \;\) at \(\; a,b = \) e.g. 1,2