Properties

Label 400.79
Modulus 400400
Conductor 100100
Order 1010
Real no
Primitive no
Minimal yes
Parity odd

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(400, base_ring=CyclotomicField(10))
 
M = H._module
 
chi = DirichletCharacter(H, M([5,0,1]))
 
pari: [g,chi] = znchar(Mod(79,400))
 

Basic properties

Modulus: 400400
Conductor: 100100
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: 1010
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from χ100(79,)\chi_{100}(79,\cdot)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: odd
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 400.x

χ400(79,)\chi_{400}(79,\cdot) χ400(159,)\chi_{400}(159,\cdot) χ400(239,)\chi_{400}(239,\cdot) χ400(319,)\chi_{400}(319,\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(ζ5)\Q(\zeta_{5})
Fixed field: 10.0.781250000000000.1

Values on generators

(351,101,177)(351,101,177)(1,1,e(110))(-1,1,e\left(\frac{1}{10}\right))

First values

aa 1-1113377991111131317171919212123232727
χ400(79,a) \chi_{ 400 }(79, a) 1-111e(15)e\left(\frac{1}{5}\right)11e(25)e\left(\frac{2}{5}\right)e(110)e\left(\frac{1}{10}\right)e(910)e\left(\frac{9}{10}\right)e(310)e\left(\frac{3}{10}\right)e(310)e\left(\frac{3}{10}\right)e(15)e\left(\frac{1}{5}\right)e(35)e\left(\frac{3}{5}\right)e(35)e\left(\frac{3}{5}\right)
sage: chi.jacobi_sum(n)
 
χ400(79,a)   \chi_{ 400 }(79,a) \; at   a=\;a = e.g. 2

Gauss sum

sage: chi.gauss_sum(a)
 
pari: znchargauss(g,chi,a)
 
τa(χ400(79,))   \tau_{ a }( \chi_{ 400 }(79,·) )\; at   a=\;a = e.g. 2

Jacobi sum

sage: chi.jacobi_sum(n)
 
J(χ400(79,),χ400(n,))   J(\chi_{ 400 }(79,·),\chi_{ 400 }(n,·)) \; for   n= \; n = e.g. 1

Kloosterman sum

sage: chi.kloosterman_sum(a,b)
 
K(a,b,χ400(79,))  K(a,b,\chi_{ 400 }(79,·)) \; at   a,b=\; a,b = e.g. 1,2