Properties

Label 972.7
Modulus $972$
Conductor $972$
Order $162$
Real no
Primitive yes
Minimal yes
Parity odd

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(972, base_ring=CyclotomicField(162))
 
M = H._module
 
chi = DirichletCharacter(H, M([81,70]))
 
pari: [g,chi] = znchar(Mod(7,972))
 

Basic properties

Modulus: \(972\)
Conductor: \(972\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(162\)
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 972.r

\(\chi_{972}(7,\cdot)\) \(\chi_{972}(31,\cdot)\) \(\chi_{972}(43,\cdot)\) \(\chi_{972}(67,\cdot)\) \(\chi_{972}(79,\cdot)\) \(\chi_{972}(103,\cdot)\) \(\chi_{972}(115,\cdot)\) \(\chi_{972}(139,\cdot)\) \(\chi_{972}(151,\cdot)\) \(\chi_{972}(175,\cdot)\) \(\chi_{972}(187,\cdot)\) \(\chi_{972}(211,\cdot)\) \(\chi_{972}(223,\cdot)\) \(\chi_{972}(247,\cdot)\) \(\chi_{972}(259,\cdot)\) \(\chi_{972}(283,\cdot)\) \(\chi_{972}(295,\cdot)\) \(\chi_{972}(319,\cdot)\) \(\chi_{972}(331,\cdot)\) \(\chi_{972}(355,\cdot)\) \(\chi_{972}(367,\cdot)\) \(\chi_{972}(391,\cdot)\) \(\chi_{972}(403,\cdot)\) \(\chi_{972}(427,\cdot)\) \(\chi_{972}(439,\cdot)\) \(\chi_{972}(463,\cdot)\) \(\chi_{972}(475,\cdot)\) \(\chi_{972}(499,\cdot)\) \(\chi_{972}(511,\cdot)\) \(\chi_{972}(535,\cdot)\) ...

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: $\Q(\zeta_{81})$
Fixed field: Number field defined by a degree 162 polynomial (not computed)

Values on generators

\((487,245)\) → \((-1,e\left(\frac{35}{81}\right))\)

First values

\(a\) \(-1\)\(1\)\(5\)\(7\)\(11\)\(13\)\(17\)\(19\)\(23\)\(25\)\(29\)\(31\)
\( \chi_{ 972 }(7, a) \) \(-1\)\(1\)\(e\left(\frac{76}{81}\right)\)\(e\left(\frac{121}{162}\right)\)\(e\left(\frac{127}{162}\right)\)\(e\left(\frac{37}{81}\right)\)\(e\left(\frac{7}{27}\right)\)\(e\left(\frac{49}{54}\right)\)\(e\left(\frac{95}{162}\right)\)\(e\left(\frac{71}{81}\right)\)\(e\left(\frac{80}{81}\right)\)\(e\left(\frac{23}{162}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 972 }(7,a) \;\) at \(\;a = \) e.g. 2

Gauss sum

sage: chi.gauss_sum(a)
 
pari: znchargauss(g,chi,a)
 
\( \tau_{ a }( \chi_{ 972 }(7,·) )\;\) at \(\;a = \) e.g. 2

Jacobi sum

sage: chi.jacobi_sum(n)
 
\( J(\chi_{ 972 }(7,·),\chi_{ 972 }(n,·)) \;\) for \( \; n = \) e.g. 1

Kloosterman sum

sage: chi.kloosterman_sum(a,b)
 
\(K(a,b,\chi_{ 972 }(7,·)) \;\) at \(\; a,b = \) e.g. 1,2