Properties

Label 55.54
Modulus $55$
Conductor $55$
Order $2$
Real yes
Primitive yes
Minimal yes
Parity odd

Related objects

Learn more

Show commands for: Pari/GP / SageMath
sage: from sage.modular.dirichlet import DirichletCharacter
 
sage: H = DirichletGroup(55, base_ring=CyclotomicField(2))
 
sage: M = H._module
 
sage: chi = DirichletCharacter(H, M([1,1]))
 
pari: [g,chi] = znchar(Mod(54,55))
 

Kronecker symbol representation

sage: kronecker_character(-55)
 
pari: znchartokronecker(g,chi)
 

\(\displaystyle\left(\frac{-55}{\bullet}\right)\)

Basic properties

Modulus: \(55\)
Conductor: \(55\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(2\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: yes
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 55.d

\(\chi_{55}(54,\cdot)\)

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

Related number fields

Field of values: \(\Q\)
Fixed field: \(\Q(\sqrt{-55}) \)

Values on generators

\((12,46)\) → \((-1,-1)\)

Values

\(-1\)\(1\)\(2\)\(3\)\(4\)\(6\)\(7\)\(8\)\(9\)\(12\)\(13\)\(14\)
\(-1\)\(1\)\(1\)\(-1\)\(1\)\(-1\)\(1\)\(1\)\(1\)\(-1\)\(1\)\(1\)
value at e.g. 2

Gauss sum

sage: chi.gauss_sum(a)
 
pari: znchargauss(g,chi,a)
 
\( \tau_{ a }( \chi_{ 55 }(54,·) )\;\) at \(\;a = \) e.g. 2
\(\displaystyle \tau_{2}(\chi_{55}(54,\cdot)) = \sum_{r\in \Z/55\Z} \chi_{55}(54,r) e\left(\frac{2r}{55}\right) = 7.4161984871i \)

Jacobi sum

sage: chi.jacobi_sum(n)
 
\( J(\chi_{ 55 }(54,·),\chi_{ 55 }(n,·)) \;\) for \( \; n = \) e.g. 1
\( \displaystyle J(\chi_{55}(54,\cdot),\chi_{55}(1,\cdot)) = \sum_{r\in \Z/55\Z} \chi_{55}(54,r) \chi_{55}(1,1-r) = 1 \)

Kloosterman sum

sage: chi.kloosterman_sum(a,b)
 
\(K(a,b,\chi_{ 55 }(54,·)) \;\) at \(\; a,b = \) e.g. 1,2
\( \displaystyle K(1,2,\chi_{55}(54,·)) = \sum_{r \in \Z/55\Z} \chi_{55}(54,r) e\left(\frac{1 r + 2 r^{-1}}{55}\right) = 0.0 \)