Properties

Label 1323.856
Modulus $1323$
Conductor $441$
Order $21$
Real no
Primitive no
Minimal no
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1323, base_ring=CyclotomicField(42))
 
M = H._module
 
chi = DirichletCharacter(H, M([28,38]))
 
pari: [g,chi] = znchar(Mod(856,1323))
 

Basic properties

Modulus: \(1323\)
Conductor: \(441\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(21\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{441}(268,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: no
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 1323.bl

\(\chi_{1323}(100,\cdot)\) \(\chi_{1323}(172,\cdot)\) \(\chi_{1323}(289,\cdot)\) \(\chi_{1323}(478,\cdot)\) \(\chi_{1323}(550,\cdot)\) \(\chi_{1323}(739,\cdot)\) \(\chi_{1323}(856,\cdot)\) \(\chi_{1323}(928,\cdot)\) \(\chi_{1323}(1045,\cdot)\) \(\chi_{1323}(1117,\cdot)\) \(\chi_{1323}(1234,\cdot)\) \(\chi_{1323}(1306,\cdot)\)

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 21 polynomial

Values on generators

\((785,1081)\) → \((e\left(\frac{2}{3}\right),e\left(\frac{19}{21}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(4\)\(5\)\(8\)\(10\)\(11\)\(13\)\(16\)\(17\)\(19\)
\( \chi_{ 1323 }(856, a) \) \(1\)\(1\)\(e\left(\frac{4}{21}\right)\)\(e\left(\frac{8}{21}\right)\)\(e\left(\frac{4}{7}\right)\)\(e\left(\frac{4}{7}\right)\)\(e\left(\frac{16}{21}\right)\)\(e\left(\frac{6}{7}\right)\)\(e\left(\frac{4}{21}\right)\)\(e\left(\frac{16}{21}\right)\)\(e\left(\frac{13}{21}\right)\)\(e\left(\frac{2}{3}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1323 }(856,a) \;\) at \(\;a = \) e.g. 2