Properties

Label 1890.317
Modulus $1890$
Conductor $945$
Order $36$
Real no
Primitive no
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1890, base_ring=CyclotomicField(36))
 
M = H._module
 
chi = DirichletCharacter(H, M([14,9,12]))
 
pari: [g,chi] = znchar(Mod(317,1890))
 

Basic properties

Modulus: \(1890\)
Conductor: \(945\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(36\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{945}(317,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 1890.dp

\(\chi_{1890}(317,\cdot)\) \(\chi_{1890}(347,\cdot)\) \(\chi_{1890}(443,\cdot)\) \(\chi_{1890}(473,\cdot)\) \(\chi_{1890}(947,\cdot)\) \(\chi_{1890}(977,\cdot)\) \(\chi_{1890}(1073,\cdot)\) \(\chi_{1890}(1103,\cdot)\) \(\chi_{1890}(1577,\cdot)\) \(\chi_{1890}(1607,\cdot)\) \(\chi_{1890}(1703,\cdot)\) \(\chi_{1890}(1733,\cdot)\)

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: \(\Q(\zeta_{36})\)
Fixed field: Number field defined by a degree 36 polynomial

Values on generators

\((1541,757,1081)\) → \((e\left(\frac{7}{18}\right),i,e\left(\frac{1}{3}\right))\)

First values

\(a\) \(-1\)\(1\)\(11\)\(13\)\(17\)\(19\)\(23\)\(29\)\(31\)\(37\)\(41\)\(43\)
\( \chi_{ 1890 }(317, a) \) \(1\)\(1\)\(e\left(\frac{7}{18}\right)\)\(e\left(\frac{31}{36}\right)\)\(e\left(\frac{5}{12}\right)\)\(e\left(\frac{5}{6}\right)\)\(e\left(\frac{25}{36}\right)\)\(e\left(\frac{8}{9}\right)\)\(e\left(\frac{1}{9}\right)\)\(i\)\(e\left(\frac{11}{18}\right)\)\(e\left(\frac{11}{36}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1890 }(317,a) \;\) at \(\;a = \) e.g. 2