Properties

Label 987.841
Modulus $987$
Conductor $47$
Order $23$
Real no
Primitive no
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(987, base_ring=CyclotomicField(46))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,0,24]))
 
pari: [g,chi] = znchar(Mod(841,987))
 

Basic properties

Modulus: \(987\)
Conductor: \(47\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(23\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{47}(42,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 987.q

\(\chi_{987}(64,\cdot)\) \(\chi_{987}(106,\cdot)\) \(\chi_{987}(148,\cdot)\) \(\chi_{987}(169,\cdot)\) \(\chi_{987}(190,\cdot)\) \(\chi_{987}(253,\cdot)\) \(\chi_{987}(316,\cdot)\) \(\chi_{987}(337,\cdot)\) \(\chi_{987}(379,\cdot)\) \(\chi_{987}(400,\cdot)\) \(\chi_{987}(484,\cdot)\) \(\chi_{987}(526,\cdot)\) \(\chi_{987}(568,\cdot)\) \(\chi_{987}(589,\cdot)\) \(\chi_{987}(694,\cdot)\) \(\chi_{987}(820,\cdot)\) \(\chi_{987}(841,\cdot)\) \(\chi_{987}(862,\cdot)\) \(\chi_{987}(883,\cdot)\) \(\chi_{987}(925,\cdot)\) \(\chi_{987}(946,\cdot)\) \(\chi_{987}(967,\cdot)\)

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: \(\Q(\zeta_{23})\)
Fixed field: Number field defined by a degree 23 polynomial

Values on generators

\((659,283,757)\) → \((1,1,e\left(\frac{12}{23}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(4\)\(5\)\(8\)\(10\)\(11\)\(13\)\(16\)\(17\)\(19\)
\( \chi_{ 987 }(841, a) \) \(1\)\(1\)\(e\left(\frac{9}{23}\right)\)\(e\left(\frac{18}{23}\right)\)\(e\left(\frac{12}{23}\right)\)\(e\left(\frac{4}{23}\right)\)\(e\left(\frac{21}{23}\right)\)\(e\left(\frac{15}{23}\right)\)\(e\left(\frac{17}{23}\right)\)\(e\left(\frac{13}{23}\right)\)\(e\left(\frac{8}{23}\right)\)\(e\left(\frac{11}{23}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 987 }(841,a) \;\) at \(\;a = \) e.g. 2

Gauss sum

sage: chi.gauss_sum(a)
 
pari: znchargauss(g,chi,a)
 
\( \tau_{ a }( \chi_{ 987 }(841,·) )\;\) at \(\;a = \) e.g. 2

Jacobi sum

sage: chi.jacobi_sum(n)
 
\( J(\chi_{ 987 }(841,·),\chi_{ 987 }(n,·)) \;\) for \( \; n = \) e.g. 1

Kloosterman sum

sage: chi.kloosterman_sum(a,b)
 
\(K(a,b,\chi_{ 987 }(841,·)) \;\) at \(\; a,b = \) e.g. 1,2