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Properties

Label 1580.279
Modulus $1580$
Conductor $1580$
Order $78$
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(1580, base_ring=CyclotomicField(78)) M = H._module chi = DirichletCharacter(H, M([39,39,58]))
 
Copy content gp:[g,chi] = znchar(Mod(279, 1580))
 
Copy content magma:// Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code chi := DirichletCharacter("1580.279");
 

Basic properties

Modulus: \(1580\)
Copy content comment:Modulus
 
Copy content sage:chi.modulus()
 
Copy content gp:g[1][1]
 
Copy content magma:Modulus(chi);
 
Conductor: \(1580\)
Copy content comment:Conductor
 
Copy content sage:chi.conductor()
 
Copy content gp:znconreyconductor(g,chi)
 
Copy content magma:Conductor(chi);
 
Order: \(78\)
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 1580.bp

\(\chi_{1580}(19,\cdot)\) \(\chi_{1580}(99,\cdot)\) \(\chi_{1580}(119,\cdot)\) \(\chi_{1580}(239,\cdot)\) \(\chi_{1580}(279,\cdot)\) \(\chi_{1580}(399,\cdot)\) \(\chi_{1580}(439,\cdot)\) \(\chi_{1580}(479,\cdot)\) \(\chi_{1580}(499,\cdot)\) \(\chi_{1580}(519,\cdot)\) \(\chi_{1580}(579,\cdot)\) \(\chi_{1580}(799,\cdot)\) \(\chi_{1580}(839,\cdot)\) \(\chi_{1580}(919,\cdot)\) \(\chi_{1580}(959,\cdot)\) \(\chi_{1580}(979,\cdot)\) \(\chi_{1580}(999,\cdot)\) \(\chi_{1580}(1059,\cdot)\) \(\chi_{1580}(1099,\cdot)\) \(\chi_{1580}(1119,\cdot)\) \(\chi_{1580}(1179,\cdot)\) \(\chi_{1580}(1359,\cdot)\) \(\chi_{1580}(1379,\cdot)\) \(\chi_{1580}(1419,\cdot)\)

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: $\Q(\zeta_{39})$
Fixed field: Number field defined by a degree 78 polynomial

Values on generators

\((791,317,161)\) → \((-1,-1,e\left(\frac{29}{39}\right))\)

First values

\(a\) \(-1\)\(1\)\(3\)\(7\)\(9\)\(11\)\(13\)\(17\)\(19\)\(21\)\(23\)\(27\)
\( \chi_{ 1580 }(279, a) \) \(-1\)\(1\)\(e\left(\frac{29}{39}\right)\)\(e\left(\frac{16}{39}\right)\)\(e\left(\frac{19}{39}\right)\)\(e\left(\frac{5}{78}\right)\)\(e\left(\frac{61}{78}\right)\)\(e\left(\frac{3}{26}\right)\)\(e\left(\frac{23}{78}\right)\)\(e\left(\frac{2}{13}\right)\)\(e\left(\frac{1}{3}\right)\)\(e\left(\frac{3}{13}\right)\)
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)
 
\( \chi_{ 1580 }(279,a) \;\) at \(\;a = \) e.g. 2