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Properties

Label 1975.1974
Modulus $1975$
Conductor $395$
Order $2$
Real yes
Primitive no
Minimal no
Parity odd

Related objects

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Show commands: Pari/GP / SageMath
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(1975, base_ring=CyclotomicField(2)) M = H._module chi = DirichletCharacter(H, M([1,1]))
 
Copy content pari:[g,chi] = znchar(Mod(1974,1975))
 

Basic properties

Modulus: \(1975\)
Conductor: \(395\)
Copy content sage:chi.conductor()
 
Copy content pari:znconreyconductor(g,chi)
 
Order: \(2\)
Copy content sage:chi.multiplicative_order()
 
Copy content pari:charorder(g,chi)
 
Real: yes
Primitive: no, induced from \(\chi_{395}(394,\cdot)\)
Copy content sage:chi.is_primitive()
 
Copy content pari:#znconreyconductor(g,chi)==1
 
Minimal: no
Parity: odd
Copy content sage:chi.is_odd()
 
Copy content pari:zncharisodd(g,chi)
 

Galois orbit 1975.c

\(\chi_{1975}(1974,\cdot)\)

Copy content sage:chi.galois_orbit()
 
Copy content pari:order = charorder(g,chi) [ charpow(g,chi, k % order) | k <-[1..order-1], gcd(k,order)==1 ]
 

Related number fields

Field of values: \(\Q\)
Fixed field: \(\Q(\sqrt{-395}) \)

Values on generators

\((1502,951)\) → \((-1,-1)\)

First values

\(a\) \(-1\)\(1\)\(2\)\(3\)\(4\)\(6\)\(7\)\(8\)\(9\)\(11\)\(12\)\(13\)
\( \chi_{ 1975 }(1974, a) \) \(-1\)\(1\)\(-1\)\(1\)\(1\)\(-1\)\(1\)\(-1\)\(1\)\(1\)\(1\)\(-1\)
Copy content sage:chi.jacobi_sum(n)
 
\( \chi_{ 1975 }(1974,a) \;\) at \(\;a = \) e.g. 2