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Properties

Label 2643.2642
Modulus $2643$
Conductor $2643$
Order $2$
Real yes
Primitive yes
Minimal yes
Parity odd

Related objects

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Show commands: Magma / Pari/GP / SageMath
Copy content comment:Define the Dirichlet character
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(2643, base_ring=CyclotomicField(2)) M = H._module chi = DirichletCharacter(H, M([1,1]))
 
Copy content gp:[g,chi] = znchar(Mod(2642, 2643))
 
Copy content magma:// Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code chi := DirichletCharacter("2643.2642");
 

Kronecker symbol representation

Copy content comment:Kronecker symbol
 
Copy content sage:kronecker_character(-2643)
 
Copy content gp:znchartokronecker(g,chi)
 
Copy content magma:KroneckerCharacter(-2643);
 

\(\displaystyle\left(\frac{-2643}{\bullet}\right)\)

Basic properties

Modulus: \(2643\)
Copy content comment:Modulus
 
Copy content sage:chi.modulus()
 
Copy content gp:g[1][1]
 
Copy content magma:Modulus(chi);
 
Conductor: \(2643\)
Copy content comment:Conductor
 
Copy content sage:chi.conductor()
 
Copy content gp:znconreyconductor(g,chi)
 
Copy content magma:Conductor(chi);
 
Order: \(2\)
Copy content comment:Order
 
Copy content sage:chi.multiplicative_order()
 
Copy content gp:charorder(g,chi)
 
Copy content magma:Order(chi);
 
Real: yes
Copy content comment:Whether the character is real
 
Copy content sage:chi.multiplicative_order() <= 2
 
Copy content gp:charorder(g,chi) <= 2
 
Copy content magma:Order(chi) le 2;
 
Primitive: yes
Copy content comment:If the character is primitive
 
Copy content sage:chi.is_primitive()
 
Copy content gp:#znconreyconductor(g,chi)==1
 
Copy content magma:IsPrimitive(chi);
 
Minimal: yes
Parity: odd
Copy content comment:Parity
 
Copy content sage:chi.is_odd()
 
Copy content gp:zncharisodd(g,chi)
 
Copy content magma:IsOdd(chi);
 

Galois orbit 2643.b

\(\chi_{2643}(2642,\cdot)\)

Copy content comment:Galois orbit
 
Copy content sage:chi.galois_orbit()
 
Copy content gp:order = charorder(g,chi) [ charpow(g,chi, k % order) | k <-[1..order-1], gcd(k,order)==1 ]
 
Copy content magma:order := Order(chi); { chi^k : k in [1..order-1] | GCD(k,order) eq 1 };
 

Related number fields

Field of values: \(\Q\)
Fixed field: \(\Q(\sqrt{-2643}) \)

Values on generators

\((1763,1765)\) → \((-1,-1)\)

First values

\(a\) \(-1\)\(1\)\(2\)\(4\)\(5\)\(7\)\(8\)\(10\)\(11\)\(13\)\(14\)\(16\)
\( \chi_{ 2643 }(2642, a) \) \(-1\)\(1\)\(-1\)\(1\)\(-1\)\(-1\)\(-1\)\(1\)\(-1\)\(1\)\(1\)\(1\)
Copy content comment:Value of chi at x
 
Copy content sage:chi(x)
 
Copy content gp:chareval(g,chi,x) \\\\ x integer, value in Q/Z'
 
Copy content magma:chi(x)
 
\( \chi_{ 2643 }(2642,a) \;\) at \(\;a = \) e.g. 2