Properties

Label 41600.18777
Modulus $41600$
Conductor $20800$
Order $80$
Real no
Primitive no
Minimal no
Parity even

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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(41600, base_ring=CyclotomicField(80)) M = H._module chi = DirichletCharacter(H, M([0,45,4,60]))
 
Copy content gp:[g,chi] = znchar(Mod(18777, 41600))
 
Copy content magma:// Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code chi := DirichletCharacter("41600.18777");
 

Basic properties

Modulus: \(41600\)
Copy content comment:Modulus
 
Copy content sage:chi.modulus()
 
Copy content gp:g[1][1]
 
Copy content magma:Modulus(chi);
 
Conductor: \(20800\)
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: no, induced from \(\chi_{20800}(7077,\cdot)\)
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: no
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 41600.to

\(\chi_{41600}(73,\cdot)\) \(\chi_{41600}(2137,\cdot)\) \(\chi_{41600}(2153,\cdot)\) \(\chi_{41600}(4217,\cdot)\) \(\chi_{41600}(4233,\cdot)\) \(\chi_{41600}(6297,\cdot)\) \(\chi_{41600}(6313,\cdot)\) \(\chi_{41600}(8377,\cdot)\) \(\chi_{41600}(10473,\cdot)\) \(\chi_{41600}(12537,\cdot)\) \(\chi_{41600}(12553,\cdot)\) \(\chi_{41600}(14617,\cdot)\) \(\chi_{41600}(14633,\cdot)\) \(\chi_{41600}(16697,\cdot)\) \(\chi_{41600}(16713,\cdot)\) \(\chi_{41600}(18777,\cdot)\) \(\chi_{41600}(20873,\cdot)\) \(\chi_{41600}(22937,\cdot)\) \(\chi_{41600}(22953,\cdot)\) \(\chi_{41600}(25017,\cdot)\) \(\chi_{41600}(25033,\cdot)\) \(\chi_{41600}(27097,\cdot)\) \(\chi_{41600}(27113,\cdot)\) \(\chi_{41600}(29177,\cdot)\) \(\chi_{41600}(31273,\cdot)\) \(\chi_{41600}(33337,\cdot)\) \(\chi_{41600}(33353,\cdot)\) \(\chi_{41600}(35417,\cdot)\) \(\chi_{41600}(35433,\cdot)\) \(\chi_{41600}(37497,\cdot)\) ...

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

\((33151,16901,14977,22401)\) → \((1,e\left(\frac{9}{16}\right),e\left(\frac{1}{20}\right),-i)\)

First values

\(a\) \(-1\)\(1\)\(3\)\(7\)\(9\)\(11\)\(17\)\(19\)\(21\)\(23\)\(27\)\(29\)
\( \chi_{ 41600 }(18777, a) \) \(1\)\(1\)\(e\left(\frac{3}{80}\right)\)\(e\left(\frac{1}{8}\right)\)\(e\left(\frac{3}{40}\right)\)\(e\left(\frac{69}{80}\right)\)\(e\left(\frac{9}{10}\right)\)\(e\left(\frac{47}{80}\right)\)\(e\left(\frac{13}{80}\right)\)\(e\left(\frac{37}{40}\right)\)\(e\left(\frac{9}{80}\right)\)\(e\left(\frac{23}{80}\right)\)
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)
 
\( \chi_{ 41600 }(18777,a) \;\) at \(\;a = \) e.g. 2