Properties

Label 1600.621
Modulus $1600$
Conductor $1600$
Order $80$
Real no
Primitive yes
Minimal yes
Parity even

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(1600, base_ring=CyclotomicField(80)) M = H._module chi = DirichletCharacter(H, M([0,35,48]))
 
Copy content gp:[g,chi] = znchar(Mod(621, 1600))
 
Copy content magma:// Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code chi := DirichletCharacter("1600.621");
 

Basic properties

Modulus: \(1600\)
Copy content comment:Modulus
 
Copy content sage:chi.modulus()
 
Copy content gp:g[1][1]
 
Copy content magma:Modulus(chi);
 
Conductor: \(1600\)
Copy content comment:Conductor
 
Copy content sage:chi.conductor()
 
Copy content gp:znconreyconductor(g,chi)
 
Copy content magma:Conductor(chi);
 
Order: \(80\)
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: even
Copy content comment:Parity
 
Copy content sage:chi.is_odd()
 
Copy content gp:zncharisodd(g,chi)
 
Copy content magma:IsOdd(chi);
 

Galois orbit 1600.cr

\(\chi_{1600}(21,\cdot)\) \(\chi_{1600}(61,\cdot)\) \(\chi_{1600}(141,\cdot)\) \(\chi_{1600}(181,\cdot)\) \(\chi_{1600}(221,\cdot)\) \(\chi_{1600}(261,\cdot)\) \(\chi_{1600}(341,\cdot)\) \(\chi_{1600}(381,\cdot)\) \(\chi_{1600}(421,\cdot)\) \(\chi_{1600}(461,\cdot)\) \(\chi_{1600}(541,\cdot)\) \(\chi_{1600}(581,\cdot)\) \(\chi_{1600}(621,\cdot)\) \(\chi_{1600}(661,\cdot)\) \(\chi_{1600}(741,\cdot)\) \(\chi_{1600}(781,\cdot)\) \(\chi_{1600}(821,\cdot)\) \(\chi_{1600}(861,\cdot)\) \(\chi_{1600}(941,\cdot)\) \(\chi_{1600}(981,\cdot)\) \(\chi_{1600}(1021,\cdot)\) \(\chi_{1600}(1061,\cdot)\) \(\chi_{1600}(1141,\cdot)\) \(\chi_{1600}(1181,\cdot)\) \(\chi_{1600}(1221,\cdot)\) \(\chi_{1600}(1261,\cdot)\) \(\chi_{1600}(1341,\cdot)\) \(\chi_{1600}(1381,\cdot)\) \(\chi_{1600}(1421,\cdot)\) \(\chi_{1600}(1461,\cdot)\) ...

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: $\Q(\zeta_{80})$
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 80 polynomial
Copy content comment:Fixed field
 
Copy content sage:chi.fixed_field()
 

Values on generators

\((1151,901,577)\) → \((1,e\left(\frac{7}{16}\right),e\left(\frac{3}{5}\right))\)

First values

\(a\) \(-1\)\(1\)\(3\)\(7\)\(9\)\(11\)\(13\)\(17\)\(19\)\(21\)\(23\)\(27\)
\( \chi_{ 1600 }(621, a) \) \(1\)\(1\)\(e\left(\frac{41}{80}\right)\)\(e\left(\frac{3}{8}\right)\)\(e\left(\frac{1}{40}\right)\)\(e\left(\frac{63}{80}\right)\)\(e\left(\frac{77}{80}\right)\)\(e\left(\frac{1}{20}\right)\)\(e\left(\frac{69}{80}\right)\)\(e\left(\frac{71}{80}\right)\)\(e\left(\frac{29}{40}\right)\)\(e\left(\frac{43}{80}\right)\)
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)
 
\( \chi_{ 1600 }(621,a) \;\) at \(\;a = \) e.g. 2