Properties

Label 254.195
Modulus $254$
Conductor $127$
Order $9$
Real no
Primitive no
Minimal yes
Parity even

Related objects

Learn more about

Show commands for: Pari/GP / SageMath
sage: from sage.modular.dirichlet import DirichletCharacter
 
sage: H = DirichletGroup(254, base_ring=CyclotomicField(18))
 
sage: M = H._module
 
sage: chi = DirichletCharacter(H, M([8]))
 
pari: [g,chi] = znchar(Mod(195,254))
 

Basic properties

Modulus: \(254\)
Conductor: \(127\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(9\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{127}(68,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 254.f

\(\chi_{254}(37,\cdot)\) \(\chi_{254}(99,\cdot)\) \(\chi_{254}(103,\cdot)\) \(\chi_{254}(149,\cdot)\) \(\chi_{254}(179,\cdot)\) \(\chi_{254}(195,\cdot)\)

sage: chi.galois_orbit()
 
pari: order = charorder(g,chi)
 
pari: [ charpow(g,chi, k % order) | k <-[1..order-1], gcd(k,order)==1 ]
 

Values on generators

\(3\) → \(e\left(\frac{4}{9}\right)\)

Values

\(-1\)\(1\)\(3\)\(5\)\(7\)\(9\)\(11\)\(13\)\(15\)\(17\)\(19\)\(21\)
\(1\)\(1\)\(e\left(\frac{4}{9}\right)\)\(e\left(\frac{2}{3}\right)\)\(e\left(\frac{1}{9}\right)\)\(e\left(\frac{8}{9}\right)\)\(e\left(\frac{2}{9}\right)\)\(e\left(\frac{7}{9}\right)\)\(e\left(\frac{1}{9}\right)\)\(e\left(\frac{8}{9}\right)\)\(e\left(\frac{1}{3}\right)\)\(e\left(\frac{5}{9}\right)\)
value at e.g. 2

Related number fields

Field of values: \(\Q(\zeta_{9})\)
Fixed field: 9.9.67675234241018881.1

Gauss sum

sage: chi.gauss_sum(a)
 
pari: znchargauss(g,chi,a)
 
\( \tau_{ a }( \chi_{ 254 }(195,·) )\;\) at \(\;a = \) e.g. 2
\(\displaystyle \tau_{2}(\chi_{254}(195,\cdot)) = \sum_{r\in \Z/254\Z} \chi_{254}(195,r) e\left(\frac{r}{127}\right) = 11.2618628356+0.4128504245i \)

Jacobi sum

sage: chi.jacobi_sum(n)
 
\( J(\chi_{ 254 }(195,·),\chi_{ 254 }(n,·)) \;\) for \( \; n = \) e.g. 1
\( \displaystyle J(\chi_{254}(195,\cdot),\chi_{254}(1,\cdot)) = \sum_{r\in \Z/254\Z} \chi_{254}(195,r) \chi_{254}(1,1-r) = 0 \)

Kloosterman sum

sage: chi.kloosterman_sum(a,b)
 
\(K(a,b,\chi_{ 254 }(195,·)) \;\) at \(\; a,b = \) e.g. 1,2
\( \displaystyle K(1,2,\chi_{254}(195,·)) = \sum_{r \in \Z/254\Z} \chi_{254}(195,r) e\left(\frac{1 r + 2 r^{-1}}{254}\right) = 14.7470871921 \)