Properties

Label 4028.255
Modulus $4028$
Conductor $4028$
Order $78$
Real no
Primitive yes
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(4028, base_ring=CyclotomicField(78))
 
M = H._module
 
chi = DirichletCharacter(H, M([39,13,33]))
 
pari: [g,chi] = znchar(Mod(255,4028))
 

Basic properties

Modulus: \(4028\)
Conductor: \(4028\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(78\)
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 4028.by

\(\chi_{4028}(255,\cdot)\) \(\chi_{4028}(335,\cdot)\) \(\chi_{4028}(411,\cdot)\) \(\chi_{4028}(483,\cdot)\) \(\chi_{4028}(559,\cdot)\) \(\chi_{4028}(939,\cdot)\) \(\chi_{4028}(1395,\cdot)\) \(\chi_{4028}(1471,\cdot)\) \(\chi_{4028}(1627,\cdot)\) \(\chi_{4028}(1703,\cdot)\) \(\chi_{4028}(2235,\cdot)\) \(\chi_{4028}(2463,\cdot)\) \(\chi_{4028}(2687,\cdot)\) \(\chi_{4028}(2763,\cdot)\) \(\chi_{4028}(2767,\cdot)\) \(\chi_{4028}(2919,\cdot)\) \(\chi_{4028}(3223,\cdot)\) \(\chi_{4028}(3295,\cdot)\) \(\chi_{4028}(3451,\cdot)\) \(\chi_{4028}(3523,\cdot)\) \(\chi_{4028}(3527,\cdot)\) \(\chi_{4028}(3827,\cdot)\) \(\chi_{4028}(3907,\cdot)\) \(\chi_{4028}(3979,\cdot)\)

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: $\Q(\zeta_{39})$
Fixed field: Number field defined by a degree 78 polynomial

Values on generators

\((2015,2757,2281)\) → \((-1,e\left(\frac{1}{6}\right),e\left(\frac{11}{26}\right))\)

First values

\(a\) \(-1\)\(1\)\(3\)\(5\)\(7\)\(9\)\(11\)\(13\)\(15\)\(17\)\(21\)\(23\)
\( \chi_{ 4028 }(255, a) \) \(1\)\(1\)\(e\left(\frac{67}{78}\right)\)\(e\left(\frac{43}{78}\right)\)\(e\left(\frac{11}{26}\right)\)\(e\left(\frac{28}{39}\right)\)\(e\left(\frac{1}{26}\right)\)\(e\left(\frac{77}{78}\right)\)\(e\left(\frac{16}{39}\right)\)\(e\left(\frac{35}{39}\right)\)\(e\left(\frac{11}{39}\right)\)\(e\left(\frac{1}{3}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 4028 }(255,a) \;\) at \(\;a = \) e.g. 2