Properties

Label 21780.131
Modulus $21780$
Conductor $4356$
Order $66$
Real no
Primitive no
Minimal yes
Parity odd

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(21780, base_ring=CyclotomicField(66))
 
M = H._module
 
chi = DirichletCharacter(H, M([33,55,0,45]))
 
pari: [g,chi] = znchar(Mod(131,21780))
 

Basic properties

Modulus: \(21780\)
Conductor: \(4356\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(66\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{4356}(131,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: odd
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 21780.fa

\(\chi_{21780}(131,\cdot)\) \(\chi_{21780}(2111,\cdot)\) \(\chi_{21780}(3431,\cdot)\) \(\chi_{21780}(4091,\cdot)\) \(\chi_{21780}(5411,\cdot)\) \(\chi_{21780}(6071,\cdot)\) \(\chi_{21780}(7391,\cdot)\) \(\chi_{21780}(8051,\cdot)\) \(\chi_{21780}(9371,\cdot)\) \(\chi_{21780}(10031,\cdot)\) \(\chi_{21780}(11351,\cdot)\) \(\chi_{21780}(12011,\cdot)\) \(\chi_{21780}(13331,\cdot)\) \(\chi_{21780}(13991,\cdot)\) \(\chi_{21780}(15311,\cdot)\) \(\chi_{21780}(17291,\cdot)\) \(\chi_{21780}(17951,\cdot)\) \(\chi_{21780}(19271,\cdot)\) \(\chi_{21780}(19931,\cdot)\) \(\chi_{21780}(21251,\cdot)\)

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: \(\Q(\zeta_{33})\)
Fixed field: Number field defined by a degree 66 polynomial

Values on generators

\((10891,19361,4357,14401)\) → \((-1,e\left(\frac{5}{6}\right),1,e\left(\frac{15}{22}\right))\)

First values

\(a\) \(-1\)\(1\)\(7\)\(13\)\(17\)\(19\)\(23\)\(29\)\(31\)\(37\)\(41\)\(43\)
\( \chi_{ 21780 }(131, a) \) \(-1\)\(1\)\(e\left(\frac{20}{33}\right)\)\(e\left(\frac{35}{66}\right)\)\(e\left(\frac{10}{11}\right)\)\(e\left(\frac{1}{11}\right)\)\(e\left(\frac{13}{33}\right)\)\(e\left(\frac{14}{33}\right)\)\(e\left(\frac{53}{66}\right)\)\(e\left(\frac{7}{11}\right)\)\(e\left(\frac{28}{33}\right)\)\(e\left(\frac{29}{33}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 21780 }(131,a) \;\) at \(\;a = \) e.g. 2