Properties

Label 2624.1221
Modulus $2624$
Conductor $2624$
Order $16$
Real no
Primitive yes
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2624, base_ring=CyclotomicField(16))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,1,4]))
 
pari: [g,chi] = znchar(Mod(1221,2624))
 

Basic properties

Modulus: \(2624\)
Conductor: \(2624\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(16\)
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 2624.cd

\(\chi_{2624}(173,\cdot)\) \(\chi_{2624}(565,\cdot)\) \(\chi_{2624}(829,\cdot)\) \(\chi_{2624}(1221,\cdot)\) \(\chi_{2624}(1485,\cdot)\) \(\chi_{2624}(1877,\cdot)\) \(\chi_{2624}(2141,\cdot)\) \(\chi_{2624}(2533,\cdot)\)

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: \(\Q(\zeta_{16})\)
Fixed field: 16.16.13638793002368463464842100756923359457968128.2

Values on generators

\((575,1477,129)\) → \((1,e\left(\frac{1}{16}\right),i)\)

First values

\(a\) \(-1\)\(1\)\(3\)\(5\)\(7\)\(9\)\(11\)\(13\)\(15\)\(17\)\(19\)\(21\)
\( \chi_{ 2624 }(1221, a) \) \(1\)\(1\)\(e\left(\frac{15}{16}\right)\)\(e\left(\frac{9}{16}\right)\)\(e\left(\frac{3}{8}\right)\)\(e\left(\frac{7}{8}\right)\)\(e\left(\frac{1}{16}\right)\)\(e\left(\frac{11}{16}\right)\)\(-1\)\(1\)\(e\left(\frac{11}{16}\right)\)\(e\left(\frac{5}{16}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 2624 }(1221,a) \;\) at \(\;a = \) e.g. 2