Properties

Label 8820.13
Modulus $8820$
Conductor $2205$
Order $84$
Real no
Primitive no
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(8820, base_ring=CyclotomicField(84))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,28,63,66]))
 
pari: [g,chi] = znchar(Mod(13,8820))
 

Basic properties

Modulus: \(8820\)
Conductor: \(2205\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(84\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{2205}(13,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 8820.ja

\(\chi_{8820}(13,\cdot)\) \(\chi_{8820}(517,\cdot)\) \(\chi_{8820}(853,\cdot)\) \(\chi_{8820}(1357,\cdot)\) \(\chi_{8820}(1777,\cdot)\) \(\chi_{8820}(2113,\cdot)\) \(\chi_{8820}(2533,\cdot)\) \(\chi_{8820}(2617,\cdot)\) \(\chi_{8820}(3373,\cdot)\) \(\chi_{8820}(3793,\cdot)\) \(\chi_{8820}(3877,\cdot)\) \(\chi_{8820}(4297,\cdot)\) \(\chi_{8820}(4633,\cdot)\) \(\chi_{8820}(5053,\cdot)\) \(\chi_{8820}(5137,\cdot)\) \(\chi_{8820}(5557,\cdot)\) \(\chi_{8820}(5893,\cdot)\) \(\chi_{8820}(6313,\cdot)\) \(\chi_{8820}(6397,\cdot)\) \(\chi_{8820}(6817,\cdot)\) \(\chi_{8820}(7573,\cdot)\) \(\chi_{8820}(7657,\cdot)\) \(\chi_{8820}(8077,\cdot)\) \(\chi_{8820}(8413,\cdot)\)

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: $\Q(\zeta_{84})$
Fixed field: Number field defined by a degree 84 polynomial

Values on generators

\((4411,7841,7057,1081)\) → \((1,e\left(\frac{1}{3}\right),-i,e\left(\frac{11}{14}\right))\)

First values

\(a\) \(-1\)\(1\)\(11\)\(13\)\(17\)\(19\)\(23\)\(29\)\(31\)\(37\)\(41\)\(43\)
\( \chi_{ 8820 }(13, a) \) \(1\)\(1\)\(e\left(\frac{16}{21}\right)\)\(e\left(\frac{71}{84}\right)\)\(e\left(\frac{11}{28}\right)\)\(1\)\(e\left(\frac{65}{84}\right)\)\(e\left(\frac{41}{42}\right)\)\(e\left(\frac{1}{6}\right)\)\(e\left(\frac{25}{28}\right)\)\(e\left(\frac{19}{42}\right)\)\(e\left(\frac{25}{84}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 8820 }(13,a) \;\) at \(\;a = \) e.g. 2