Properties

Label 2646.661
Modulus $2646$
Conductor $1323$
Order $126$
Real no
Primitive no
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(2646, base_ring=CyclotomicField(126)) M = H._module chi = DirichletCharacter(H, M([56,111]))
 
Copy content gp:[g,chi] = znchar(Mod(661, 2646))
 
Copy content magma:// Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code chi := DirichletCharacter("2646.661");
 

Basic properties

Modulus: \(2646\)
Copy content comment:Modulus
 
Copy content sage:chi.modulus()
 
Copy content gp:g[1][1]
 
Copy content magma:Modulus(chi);
 
Conductor: \(1323\)
Copy content comment:Conductor
 
Copy content sage:chi.conductor()
 
Copy content gp:znconreyconductor(g,chi)
 
Copy content magma:Conductor(chi);
 
Order: \(126\)
Copy content comment:Order
 
Copy content sage:chi.multiplicative_order()
 
Copy content gp:charorder(g,chi)
 
Copy content magma:Order(chi);
 
Real: no
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: no, induced from \(\chi_{1323}(661,\cdot)\)
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 2646.cg

\(\chi_{2646}(61,\cdot)\) \(\chi_{2646}(157,\cdot)\) \(\chi_{2646}(187,\cdot)\) \(\chi_{2646}(283,\cdot)\) \(\chi_{2646}(409,\cdot)\) \(\chi_{2646}(439,\cdot)\) \(\chi_{2646}(535,\cdot)\) \(\chi_{2646}(565,\cdot)\) \(\chi_{2646}(661,\cdot)\) \(\chi_{2646}(691,\cdot)\) \(\chi_{2646}(787,\cdot)\) \(\chi_{2646}(817,\cdot)\) \(\chi_{2646}(943,\cdot)\) \(\chi_{2646}(1039,\cdot)\) \(\chi_{2646}(1069,\cdot)\) \(\chi_{2646}(1165,\cdot)\) \(\chi_{2646}(1291,\cdot)\) \(\chi_{2646}(1321,\cdot)\) \(\chi_{2646}(1417,\cdot)\) \(\chi_{2646}(1447,\cdot)\) \(\chi_{2646}(1543,\cdot)\) \(\chi_{2646}(1573,\cdot)\) \(\chi_{2646}(1669,\cdot)\) \(\chi_{2646}(1699,\cdot)\) \(\chi_{2646}(1825,\cdot)\) \(\chi_{2646}(1921,\cdot)\) \(\chi_{2646}(1951,\cdot)\) \(\chi_{2646}(2047,\cdot)\) \(\chi_{2646}(2173,\cdot)\) \(\chi_{2646}(2203,\cdot)\) ...

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: $\Q(\zeta_{63})$
Copy content comment:Field of values of chi
 
Copy content sage:CyclotomicField(chi.multiplicative_order())
 
Copy content gp:nfinit(polcyclo(charorder(g,chi)))
 
Copy content magma:CyclotomicField(Order(chi));
 
Fixed field: Number field defined by a degree 126 polynomial (not computed)
Copy content comment:Fixed field
 
Copy content sage:chi.fixed_field()
 

Values on generators

\((785,1081)\) → \((e\left(\frac{4}{9}\right),e\left(\frac{37}{42}\right))\)

First values

\(a\) \(-1\)\(1\)\(5\)\(11\)\(13\)\(17\)\(19\)\(23\)\(25\)\(29\)\(31\)\(37\)
\( \chi_{ 2646 }(661, a) \) \(-1\)\(1\)\(e\left(\frac{97}{126}\right)\)\(e\left(\frac{1}{63}\right)\)\(e\left(\frac{79}{126}\right)\)\(e\left(\frac{29}{42}\right)\)\(e\left(\frac{1}{6}\right)\)\(e\left(\frac{23}{63}\right)\)\(e\left(\frac{34}{63}\right)\)\(e\left(\frac{19}{63}\right)\)\(e\left(\frac{1}{18}\right)\)\(e\left(\frac{6}{7}\right)\)
Copy content comment:Value of chi at x
 
Copy content sage:chi(x) # x integer
 
Copy content gp:chareval(g,chi,x) \\ x integer, value in Q/Z
 
Copy content magma:chi(x)
 
\( \chi_{ 2646 }(661,a) \;\) at \(\;a = \) e.g. 2