Properties

Label 3969.404
Modulus $3969$
Conductor $147$
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(3969, base_ring=CyclotomicField(42))
 
M = H._module
 
chi = DirichletCharacter(H, M([21,11]))
 
pari: [g,chi] = znchar(Mod(404,3969))
 

Basic properties

Modulus: \(3969\)
Conductor: \(147\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(42\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{147}(110,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 3969.bv

\(\chi_{3969}(404,\cdot)\) \(\chi_{3969}(647,\cdot)\) \(\chi_{3969}(971,\cdot)\) \(\chi_{3969}(1214,\cdot)\) \(\chi_{3969}(1781,\cdot)\) \(\chi_{3969}(2105,\cdot)\) \(\chi_{3969}(2348,\cdot)\) \(\chi_{3969}(2672,\cdot)\) \(\chi_{3969}(2915,\cdot)\) \(\chi_{3969}(3239,\cdot)\) \(\chi_{3969}(3482,\cdot)\) \(\chi_{3969}(3806,\cdot)\)

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: \(\Q(\zeta_{147})^+\)

Values on generators

\((2108,3727)\) → \((-1,e\left(\frac{11}{42}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(4\)\(5\)\(8\)\(10\)\(11\)\(13\)\(16\)\(17\)\(19\)
\( \chi_{ 3969 }(404, a) \) \(1\)\(1\)\(e\left(\frac{13}{42}\right)\)\(e\left(\frac{13}{21}\right)\)\(e\left(\frac{2}{21}\right)\)\(e\left(\frac{13}{14}\right)\)\(e\left(\frac{17}{42}\right)\)\(e\left(\frac{41}{42}\right)\)\(e\left(\frac{9}{14}\right)\)\(e\left(\frac{5}{21}\right)\)\(e\left(\frac{1}{21}\right)\)\(e\left(\frac{1}{6}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 3969 }(404,a) \;\) at \(\;a = \) e.g. 2