Properties

Label 896.9
Modulus $896$
Conductor $448$
Order $48$
Real no
Primitive no
Minimal no
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(896, base_ring=CyclotomicField(48))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,9,16]))
 
pari: [g,chi] = znchar(Mod(9,896))
 

Basic properties

Modulus: \(896\)
Conductor: \(448\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(48\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{448}(317,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: no
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 896.br

\(\chi_{896}(9,\cdot)\) \(\chi_{896}(25,\cdot)\) \(\chi_{896}(121,\cdot)\) \(\chi_{896}(137,\cdot)\) \(\chi_{896}(233,\cdot)\) \(\chi_{896}(249,\cdot)\) \(\chi_{896}(345,\cdot)\) \(\chi_{896}(361,\cdot)\) \(\chi_{896}(457,\cdot)\) \(\chi_{896}(473,\cdot)\) \(\chi_{896}(569,\cdot)\) \(\chi_{896}(585,\cdot)\) \(\chi_{896}(681,\cdot)\) \(\chi_{896}(697,\cdot)\) \(\chi_{896}(793,\cdot)\) \(\chi_{896}(809,\cdot)\)

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: \(\Q(\zeta_{48})\)
Fixed field: Number field defined by a degree 48 polynomial

Values on generators

\((127,645,129)\) → \((1,e\left(\frac{3}{16}\right),e\left(\frac{1}{3}\right))\)

First values

\(a\) \(-1\)\(1\)\(3\)\(5\)\(9\)\(11\)\(13\)\(15\)\(17\)\(19\)\(23\)\(25\)
\( \chi_{ 896 }(9, a) \) \(1\)\(1\)\(e\left(\frac{43}{48}\right)\)\(e\left(\frac{41}{48}\right)\)\(e\left(\frac{19}{24}\right)\)\(e\left(\frac{13}{48}\right)\)\(e\left(\frac{13}{16}\right)\)\(-i\)\(e\left(\frac{7}{12}\right)\)\(e\left(\frac{47}{48}\right)\)\(e\left(\frac{7}{24}\right)\)\(e\left(\frac{17}{24}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 896 }(9,a) \;\) at \(\;a = \) e.g. 2

Gauss sum

sage: chi.gauss_sum(a)
 
pari: znchargauss(g,chi,a)
 
\( \tau_{ a }( \chi_{ 896 }(9,·) )\;\) at \(\;a = \) e.g. 2

Jacobi sum

sage: chi.jacobi_sum(n)
 
\( J(\chi_{ 896 }(9,·),\chi_{ 896 }(n,·)) \;\) for \( \; n = \) e.g. 1

Kloosterman sum

sage: chi.kloosterman_sum(a,b)
 
\(K(a,b,\chi_{ 896 }(9,·)) \;\) at \(\; a,b = \) e.g. 1,2