Properties

Label 8820.61
Modulus $8820$
Conductor $441$
Order $42$
Real no
Primitive no
Minimal yes
Parity odd

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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([0,28,0,11]))
 
pari: [g,chi] = znchar(Mod(61,8820))
 

Basic properties

Modulus: \(8820\)
Conductor: \(441\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(42\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{441}(61,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: odd
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 8820.ft

\(\chi_{8820}(61,\cdot)\) \(\chi_{8820}(661,\cdot)\) \(\chi_{8820}(1321,\cdot)\) \(\chi_{8820}(1921,\cdot)\) \(\chi_{8820}(2581,\cdot)\) \(\chi_{8820}(3181,\cdot)\) \(\chi_{8820}(5101,\cdot)\) \(\chi_{8820}(5701,\cdot)\) \(\chi_{8820}(6361,\cdot)\) \(\chi_{8820}(6961,\cdot)\) \(\chi_{8820}(7621,\cdot)\) \(\chi_{8820}(8221,\cdot)\)

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: Number field defined by a degree 42 polynomial

Values on generators

\((4411,7841,7057,1081)\) → \((1,e\left(\frac{2}{3}\right),1,e\left(\frac{11}{42}\right))\)

First values

\(a\) \(-1\)\(1\)\(11\)\(13\)\(17\)\(19\)\(23\)\(29\)\(31\)\(37\)\(41\)\(43\)
\( \chi_{ 8820 }(61, a) \) \(-1\)\(1\)\(e\left(\frac{1}{7}\right)\)\(e\left(\frac{41}{42}\right)\)\(e\left(\frac{23}{42}\right)\)\(e\left(\frac{1}{6}\right)\)\(e\left(\frac{2}{7}\right)\)\(e\left(\frac{8}{21}\right)\)\(e\left(\frac{1}{6}\right)\)\(e\left(\frac{8}{21}\right)\)\(e\left(\frac{11}{42}\right)\)\(e\left(\frac{5}{21}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 8820 }(61,a) \;\) at \(\;a = \) e.g. 2