Properties

Label 891.7
Modulus $891$
Conductor $891$
Order $270$
Real no
Primitive yes
Minimal yes
Parity odd

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(891, base_ring=CyclotomicField(270))
 
M = H._module
 
chi = DirichletCharacter(H, M([80,189]))
 
pari: [g,chi] = znchar(Mod(7,891))
 

Basic properties

Modulus: \(891\)
Conductor: \(891\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(270\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: yes
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: odd
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 891.bf

\(\chi_{891}(7,\cdot)\) \(\chi_{891}(13,\cdot)\) \(\chi_{891}(40,\cdot)\) \(\chi_{891}(52,\cdot)\) \(\chi_{891}(61,\cdot)\) \(\chi_{891}(79,\cdot)\) \(\chi_{891}(85,\cdot)\) \(\chi_{891}(94,\cdot)\) \(\chi_{891}(106,\cdot)\) \(\chi_{891}(112,\cdot)\) \(\chi_{891}(139,\cdot)\) \(\chi_{891}(151,\cdot)\) \(\chi_{891}(160,\cdot)\) \(\chi_{891}(178,\cdot)\) \(\chi_{891}(184,\cdot)\) \(\chi_{891}(193,\cdot)\) \(\chi_{891}(205,\cdot)\) \(\chi_{891}(211,\cdot)\) \(\chi_{891}(238,\cdot)\) \(\chi_{891}(250,\cdot)\) \(\chi_{891}(259,\cdot)\) \(\chi_{891}(277,\cdot)\) \(\chi_{891}(283,\cdot)\) \(\chi_{891}(292,\cdot)\) \(\chi_{891}(304,\cdot)\) \(\chi_{891}(310,\cdot)\) \(\chi_{891}(337,\cdot)\) \(\chi_{891}(349,\cdot)\) \(\chi_{891}(358,\cdot)\) \(\chi_{891}(376,\cdot)\) ...

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: $\Q(\zeta_{135})$
Fixed field: Number field defined by a degree 270 polynomial (not computed)

Values on generators

\((650,244)\) → \((e\left(\frac{8}{27}\right),e\left(\frac{7}{10}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(4\)\(5\)\(7\)\(8\)\(10\)\(13\)\(14\)\(16\)\(17\)
\( \chi_{ 891 }(7, a) \) \(-1\)\(1\)\(e\left(\frac{269}{270}\right)\)\(e\left(\frac{134}{135}\right)\)\(e\left(\frac{83}{135}\right)\)\(e\left(\frac{173}{270}\right)\)\(e\left(\frac{89}{90}\right)\)\(e\left(\frac{11}{18}\right)\)\(e\left(\frac{19}{270}\right)\)\(e\left(\frac{86}{135}\right)\)\(e\left(\frac{133}{135}\right)\)\(e\left(\frac{7}{90}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 891 }(7,a) \;\) at \(\;a = \) e.g. 2

Gauss sum

sage: chi.gauss_sum(a)
 
pari: znchargauss(g,chi,a)
 
\( \tau_{ a }( \chi_{ 891 }(7,·) )\;\) at \(\;a = \) e.g. 2

Jacobi sum

sage: chi.jacobi_sum(n)
 
\( J(\chi_{ 891 }(7,·),\chi_{ 891 }(n,·)) \;\) for \( \; n = \) e.g. 1

Kloosterman sum

sage: chi.kloosterman_sum(a,b)
 
\(K(a,b,\chi_{ 891 }(7,·)) \;\) at \(\; a,b = \) e.g. 1,2