Properties

Label 680.677
Modulus 680680
Conductor 680680
Order 1616
Real no
Primitive yes
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(680, base_ring=CyclotomicField(16))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,8,4,9]))
 
pari: [g,chi] = znchar(Mod(677,680))
 

Basic properties

Modulus: 680680
Conductor: 680680
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: 1616
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: yes
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 680.cf

χ680(37,)\chi_{680}(37,\cdot) χ680(277,)\chi_{680}(277,\cdot) χ680(333,)\chi_{680}(333,\cdot) χ680(437,)\chi_{680}(437,\cdot) χ680(453,)\chi_{680}(453,\cdot) χ680(533,)\chi_{680}(533,\cdot) χ680(653,)\chi_{680}(653,\cdot) χ680(677,)\chi_{680}(677,\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(ζ16)\Q(\zeta_{16})
Fixed field: 16.16.11724484818984205488128000000000000.1

Values on generators

(511,341,137,241)(511,341,137,241)(1,1,i,e(916))(1,-1,i,e\left(\frac{9}{16}\right))

First values

aa 1-1113377991111131319192121232327272929
χ680(677,a) \chi_{ 680 }(677, a) 1111e(1316)e\left(\frac{13}{16}\right)e(716)e\left(\frac{7}{16}\right)e(58)e\left(\frac{5}{8}\right)e(716)e\left(\frac{7}{16}\right)1-1e(78)e\left(\frac{7}{8}\right)iie(316)e\left(\frac{3}{16}\right)e(716)e\left(\frac{7}{16}\right)e(516)e\left(\frac{5}{16}\right)
sage: chi.jacobi_sum(n)
 
χ680(677,a)   \chi_{ 680 }(677,a) \; at   a=\;a = e.g. 2

Gauss sum

sage: chi.gauss_sum(a)
 
pari: znchargauss(g,chi,a)
 
τa(χ680(677,))   \tau_{ a }( \chi_{ 680 }(677,·) )\; at   a=\;a = e.g. 2

Jacobi sum

sage: chi.jacobi_sum(n)
 
J(χ680(677,),χ680(n,))   J(\chi_{ 680 }(677,·),\chi_{ 680 }(n,·)) \; for   n= \; n = e.g. 1

Kloosterman sum

sage: chi.kloosterman_sum(a,b)
 
K(a,b,χ680(677,))  K(a,b,\chi_{ 680 }(677,·)) \; at   a,b=\; a,b = e.g. 1,2