Properties

Label 81.77
Modulus $81$
Conductor $81$
Order $54$
Real no
Primitive yes
Minimal yes
Parity odd

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(81, base_ring=CyclotomicField(54))
 
M = H._module
 
chi = DirichletCharacter(H, M([29]))
 
pari: [g,chi] = znchar(Mod(77,81))
 

Basic properties

Modulus: \(81\)
Conductor: \(81\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(54\)
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 81.h

\(\chi_{81}(2,\cdot)\) \(\chi_{81}(5,\cdot)\) \(\chi_{81}(11,\cdot)\) \(\chi_{81}(14,\cdot)\) \(\chi_{81}(20,\cdot)\) \(\chi_{81}(23,\cdot)\) \(\chi_{81}(29,\cdot)\) \(\chi_{81}(32,\cdot)\) \(\chi_{81}(38,\cdot)\) \(\chi_{81}(41,\cdot)\) \(\chi_{81}(47,\cdot)\) \(\chi_{81}(50,\cdot)\) \(\chi_{81}(56,\cdot)\) \(\chi_{81}(59,\cdot)\) \(\chi_{81}(65,\cdot)\) \(\chi_{81}(68,\cdot)\) \(\chi_{81}(74,\cdot)\) \(\chi_{81}(77,\cdot)\)

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: \(\Q(\zeta_{27})\)
Fixed field: Number field defined by a degree 54 polynomial

Values on generators

\(2\) → \(e\left(\frac{29}{54}\right)\)

First values

\(a\) \(-1\)\(1\)\(2\)\(4\)\(5\)\(7\)\(8\)\(10\)\(11\)\(13\)\(14\)\(16\)
\( \chi_{ 81 }(77, a) \) \(-1\)\(1\)\(e\left(\frac{29}{54}\right)\)\(e\left(\frac{2}{27}\right)\)\(e\left(\frac{19}{54}\right)\)\(e\left(\frac{16}{27}\right)\)\(e\left(\frac{11}{18}\right)\)\(e\left(\frac{8}{9}\right)\)\(e\left(\frac{53}{54}\right)\)\(e\left(\frac{8}{27}\right)\)\(e\left(\frac{7}{54}\right)\)\(e\left(\frac{4}{27}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 81 }(77,a) \;\) at \(\;a = \) e.g. 2

Gauss sum

sage: chi.gauss_sum(a)
 
pari: znchargauss(g,chi,a)
 
\( \tau_{ a }( \chi_{ 81 }(77,·) )\;\) at \(\;a = \) e.g. 2

Jacobi sum

sage: chi.jacobi_sum(n)
 
\( J(\chi_{ 81 }(77,·),\chi_{ 81 }(n,·)) \;\) for \( \; n = \) e.g. 1

Kloosterman sum

sage: chi.kloosterman_sum(a,b)
 
\(K(a,b,\chi_{ 81 }(77,·)) \;\) at \(\; a,b = \) e.g. 1,2