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Properties

Label 1649.38
Modulus $1649$
Conductor $1649$
Order $96$
Real no
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(1649, base_ring=CyclotomicField(96)) M = H._module chi = DirichletCharacter(H, M([72,19]))
 
Copy content gp:[g,chi] = znchar(Mod(38, 1649))
 
Copy content magma:// Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code chi := DirichletCharacter("1649.38");
 

Basic properties

Modulus: \(1649\)
Copy content comment:Modulus
 
Copy content sage:chi.modulus()
 
Copy content gp:g[1][1]
 
Copy content magma:Modulus(chi);
 
Conductor: \(1649\)
Copy content comment:Conductor
 
Copy content sage:chi.conductor()
 
Copy content gp:znconreyconductor(g,chi)
 
Copy content magma:Conductor(chi);
 
Order: \(96\)
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: 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 1649.es

\(\chi_{1649}(13,\cdot)\) \(\chi_{1649}(38,\cdot)\) \(\chi_{1649}(123,\cdot)\) \(\chi_{1649}(157,\cdot)\) \(\chi_{1649}(217,\cdot)\) \(\chi_{1649}(268,\cdot)\) \(\chi_{1649}(276,\cdot)\) \(\chi_{1649}(378,\cdot)\) \(\chi_{1649}(395,\cdot)\) \(\chi_{1649}(446,\cdot)\) \(\chi_{1649}(472,\cdot)\) \(\chi_{1649}(506,\cdot)\) \(\chi_{1649}(693,\cdot)\) \(\chi_{1649}(718,\cdot)\) \(\chi_{1649}(769,\cdot)\) \(\chi_{1649}(786,\cdot)\) \(\chi_{1649}(888,\cdot)\) \(\chi_{1649}(914,\cdot)\) \(\chi_{1649}(965,\cdot)\) \(\chi_{1649}(999,\cdot)\) \(\chi_{1649}(1007,\cdot)\) \(\chi_{1649}(1041,\cdot)\) \(\chi_{1649}(1050,\cdot)\) \(\chi_{1649}(1084,\cdot)\) \(\chi_{1649}(1126,\cdot)\) \(\chi_{1649}(1135,\cdot)\) \(\chi_{1649}(1169,\cdot)\) \(\chi_{1649}(1220,\cdot)\) \(\chi_{1649}(1398,\cdot)\) \(\chi_{1649}(1415,\cdot)\) ...

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: $\Q(\zeta_{96})$
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 96 polynomial
Copy content comment:Fixed field
 
Copy content sage:chi.fixed_field()
 

Values on generators

\((292,1072)\) → \((-i,e\left(\frac{19}{96}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(3\)\(4\)\(5\)\(6\)\(7\)\(8\)\(9\)\(10\)\(11\)
\( \chi_{ 1649 }(38, a) \) \(-1\)\(1\)\(e\left(\frac{11}{48}\right)\)\(e\left(\frac{29}{48}\right)\)\(e\left(\frac{11}{24}\right)\)\(e\left(\frac{91}{96}\right)\)\(e\left(\frac{5}{6}\right)\)\(e\left(\frac{37}{96}\right)\)\(e\left(\frac{11}{16}\right)\)\(e\left(\frac{5}{24}\right)\)\(e\left(\frac{17}{96}\right)\)\(e\left(\frac{13}{48}\right)\)
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)
 
\( \chi_{ 1649 }(38,a) \;\) at \(\;a = \) e.g. 2