Properties

Label 8820.689
Modulus $8820$
Conductor $2205$
Order $42$
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(42))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,35,21,1]))
 
pari: [g,chi] = znchar(Mod(689,8820))
 

Basic properties

Modulus: \(8820\)
Conductor: \(2205\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(42\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{2205}(689,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 8820.hx

\(\chi_{8820}(689,\cdot)\) \(\chi_{8820}(929,\cdot)\) \(\chi_{8820}(1949,\cdot)\) \(\chi_{8820}(2189,\cdot)\) \(\chi_{8820}(3209,\cdot)\) \(\chi_{8820}(4469,\cdot)\) \(\chi_{8820}(4709,\cdot)\) \(\chi_{8820}(5729,\cdot)\) \(\chi_{8820}(5969,\cdot)\) \(\chi_{8820}(7229,\cdot)\) \(\chi_{8820}(8249,\cdot)\) \(\chi_{8820}(8489,\cdot)\)

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: \(\Q(\zeta_{21})\)
Fixed field: 42.42.64499777946714835177141019992254259402911208109553981749879955329445342864388015575823925406164646148681640625.2

Values on generators

\((4411,7841,7057,1081)\) → \((1,e\left(\frac{5}{6}\right),-1,e\left(\frac{1}{42}\right))\)

First values

\(a\) \(-1\)\(1\)\(11\)\(13\)\(17\)\(19\)\(23\)\(29\)\(31\)\(37\)\(41\)\(43\)
\( \chi_{ 8820 }(689, a) \) \(1\)\(1\)\(e\left(\frac{11}{14}\right)\)\(e\left(\frac{20}{21}\right)\)\(e\left(\frac{25}{42}\right)\)\(e\left(\frac{5}{6}\right)\)\(e\left(\frac{4}{7}\right)\)\(e\left(\frac{11}{42}\right)\)\(e\left(\frac{5}{6}\right)\)\(e\left(\frac{11}{42}\right)\)\(e\left(\frac{11}{21}\right)\)\(e\left(\frac{41}{42}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 8820 }(689,a) \;\) at \(\;a = \) e.g. 2