Properties

Label 2557.1031
Modulus $2557$
Conductor $2557$
Order $639$
Real no
Primitive yes
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2557, base_ring=CyclotomicField(1278))
 
M = H._module
 
chi = DirichletCharacter(H, M([224]))
 
pari: [g,chi] = znchar(Mod(1031,2557))
 

Basic properties

Modulus: \(2557\)
Conductor: \(2557\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(639\)
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 2557.o

\(\chi_{2557}(3,\cdot)\) \(\chi_{2557}(9,\cdot)\) \(\chi_{2557}(10,\cdot)\) \(\chi_{2557}(11,\cdot)\) \(\chi_{2557}(13,\cdot)\) \(\chi_{2557}(16,\cdot)\) \(\chi_{2557}(19,\cdot)\) \(\chi_{2557}(28,\cdot)\) \(\chi_{2557}(48,\cdot)\) \(\chi_{2557}(49,\cdot)\) \(\chi_{2557}(71,\cdot)\) \(\chi_{2557}(81,\cdot)\) \(\chi_{2557}(84,\cdot)\) \(\chi_{2557}(85,\cdot)\) \(\chi_{2557}(90,\cdot)\) \(\chi_{2557}(92,\cdot)\) \(\chi_{2557}(99,\cdot)\) \(\chi_{2557}(100,\cdot)\) \(\chi_{2557}(110,\cdot)\) \(\chi_{2557}(116,\cdot)\) \(\chi_{2557}(117,\cdot)\) \(\chi_{2557}(121,\cdot)\) \(\chi_{2557}(130,\cdot)\) \(\chi_{2557}(136,\cdot)\) \(\chi_{2557}(143,\cdot)\) \(\chi_{2557}(147,\cdot)\) \(\chi_{2557}(148,\cdot)\) \(\chi_{2557}(158,\cdot)\) \(\chi_{2557}(161,\cdot)\) \(\chi_{2557}(169,\cdot)\) ...

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: $\Q(\zeta_{639})$
Fixed field: Number field defined by a degree 639 polynomial (not computed)

Values on generators

\(2\) → \(e\left(\frac{112}{639}\right)\)

First values

\(a\) \(-1\)\(1\)\(2\)\(3\)\(4\)\(5\)\(6\)\(7\)\(8\)\(9\)\(10\)\(11\)
\( \chi_{ 2557 }(1031, a) \) \(1\)\(1\)\(e\left(\frac{112}{639}\right)\)\(e\left(\frac{97}{639}\right)\)\(e\left(\frac{224}{639}\right)\)\(e\left(\frac{367}{639}\right)\)\(e\left(\frac{209}{639}\right)\)\(e\left(\frac{581}{639}\right)\)\(e\left(\frac{112}{213}\right)\)\(e\left(\frac{194}{639}\right)\)\(e\left(\frac{479}{639}\right)\)\(e\left(\frac{524}{639}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 2557 }(1031,a) \;\) at \(\;a = \) e.g. 2