Properties

Label 2028.7
Modulus $2028$
Conductor $676$
Order $156$
Real no
Primitive no
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2028, base_ring=CyclotomicField(156))
 
M = H._module
 
chi = DirichletCharacter(H, M([78,0,107]))
 
pari: [g,chi] = znchar(Mod(7,2028))
 

Basic properties

Modulus: \(2028\)
Conductor: \(676\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(156\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{676}(7,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 2028.bs

\(\chi_{2028}(7,\cdot)\) \(\chi_{2028}(67,\cdot)\) \(\chi_{2028}(115,\cdot)\) \(\chi_{2028}(163,\cdot)\) \(\chi_{2028}(175,\cdot)\) \(\chi_{2028}(223,\cdot)\) \(\chi_{2028}(271,\cdot)\) \(\chi_{2028}(331,\cdot)\) \(\chi_{2028}(379,\cdot)\) \(\chi_{2028}(475,\cdot)\) \(\chi_{2028}(487,\cdot)\) \(\chi_{2028}(535,\cdot)\) \(\chi_{2028}(583,\cdot)\) \(\chi_{2028}(631,\cdot)\) \(\chi_{2028}(643,\cdot)\) \(\chi_{2028}(691,\cdot)\) \(\chi_{2028}(739,\cdot)\) \(\chi_{2028}(787,\cdot)\) \(\chi_{2028}(799,\cdot)\) \(\chi_{2028}(847,\cdot)\) \(\chi_{2028}(895,\cdot)\) \(\chi_{2028}(943,\cdot)\) \(\chi_{2028}(955,\cdot)\) \(\chi_{2028}(1003,\cdot)\) \(\chi_{2028}(1051,\cdot)\) \(\chi_{2028}(1099,\cdot)\) \(\chi_{2028}(1111,\cdot)\) \(\chi_{2028}(1159,\cdot)\) \(\chi_{2028}(1207,\cdot)\) \(\chi_{2028}(1255,\cdot)\) ...

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: $\Q(\zeta_{156})$
Fixed field: Number field defined by a degree 156 polynomial (not computed)

Values on generators

\((1015,677,1861)\) → \((-1,1,e\left(\frac{107}{156}\right))\)

First values

\(a\) \(-1\)\(1\)\(5\)\(7\)\(11\)\(17\)\(19\)\(23\)\(25\)\(29\)\(31\)\(35\)
\( \chi_{ 2028 }(7, a) \) \(1\)\(1\)\(e\left(\frac{9}{52}\right)\)\(e\left(\frac{139}{156}\right)\)\(e\left(\frac{23}{156}\right)\)\(e\left(\frac{11}{78}\right)\)\(e\left(\frac{1}{12}\right)\)\(e\left(\frac{2}{3}\right)\)\(e\left(\frac{9}{26}\right)\)\(e\left(\frac{17}{39}\right)\)\(e\left(\frac{47}{52}\right)\)\(e\left(\frac{5}{78}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 2028 }(7,a) \;\) at \(\;a = \) e.g. 2