Properties

Label 2564.2501
Modulus $2564$
Conductor $641$
Order $80$
Real no
Primitive no
Minimal yes
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(2564, base_ring=CyclotomicField(80)) M = H._module chi = DirichletCharacter(H, M([0,57]))
 
Copy content gp:[g,chi] = znchar(Mod(2501, 2564))
 
Copy content magma:// Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code chi := DirichletCharacter("2564.2501");
 

Basic properties

Modulus: \(2564\)
Copy content comment:Modulus
 
Copy content sage:chi.modulus()
 
Copy content gp:g[1][1]
 
Copy content magma:Modulus(chi);
 
Conductor: \(641\)
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 \(\chi_{641}(578,\cdot)\)
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: even
Copy content comment:Parity
 
Copy content sage:chi.is_odd()
 
Copy content gp:zncharisodd(g,chi)
 
Copy content magma:IsOdd(chi);
 

Galois orbit 2564.x

\(\chi_{2564}(45,\cdot)\) \(\chi_{2564}(57,\cdot)\) \(\chi_{2564}(121,\cdot)\) \(\chi_{2564}(433,\cdot)\) \(\chi_{2564}(445,\cdot)\) \(\chi_{2564}(501,\cdot)\) \(\chi_{2564}(585,\cdot)\) \(\chi_{2564}(697,\cdot)\) \(\chi_{2564}(781,\cdot)\) \(\chi_{2564}(837,\cdot)\) \(\chi_{2564}(849,\cdot)\) \(\chi_{2564}(1161,\cdot)\) \(\chi_{2564}(1225,\cdot)\) \(\chi_{2564}(1237,\cdot)\) \(\chi_{2564}(1345,\cdot)\) \(\chi_{2564}(1369,\cdot)\) \(\chi_{2564}(1385,\cdot)\) \(\chi_{2564}(1433,\cdot)\) \(\chi_{2564}(1445,\cdot)\) \(\chi_{2564}(1573,\cdot)\) \(\chi_{2564}(1689,\cdot)\) \(\chi_{2564}(1745,\cdot)\) \(\chi_{2564}(1905,\cdot)\) \(\chi_{2564}(1941,\cdot)\) \(\chi_{2564}(2101,\cdot)\) \(\chi_{2564}(2157,\cdot)\) \(\chi_{2564}(2273,\cdot)\) \(\chi_{2564}(2401,\cdot)\) \(\chi_{2564}(2413,\cdot)\) \(\chi_{2564}(2461,\cdot)\) ...

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: $\Q(\zeta_{80})$
Fixed field: Number field defined by a degree 80 polynomial

Values on generators

\((1283,1285)\) → \((1,e\left(\frac{57}{80}\right))\)

First values

\(a\) \(-1\)\(1\)\(3\)\(5\)\(7\)\(9\)\(11\)\(13\)\(15\)\(17\)\(19\)\(21\)
\( \chi_{ 2564 }(2501, a) \) \(1\)\(1\)\(e\left(\frac{57}{80}\right)\)\(e\left(\frac{7}{8}\right)\)\(e\left(\frac{19}{40}\right)\)\(e\left(\frac{17}{40}\right)\)\(e\left(\frac{13}{20}\right)\)\(e\left(\frac{4}{5}\right)\)\(e\left(\frac{47}{80}\right)\)\(e\left(\frac{1}{80}\right)\)\(e\left(\frac{79}{80}\right)\)\(e\left(\frac{3}{16}\right)\)
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)
 
\( \chi_{ 2564 }(2501,a) \;\) at \(\;a = \) e.g. 2