Properties

Label 1375.18
Modulus $1375$
Conductor $275$
Order $20$
Real no
Primitive no
Minimal no
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1375, base_ring=CyclotomicField(20))
 
M = H._module
 
chi = DirichletCharacter(H, M([3,14]))
 
pari: [g,chi] = znchar(Mod(18,1375))
 

Basic properties

Modulus: \(1375\)
Conductor: \(275\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(20\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{275}(183,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: no
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 1375.bg

\(\chi_{1375}(18,\cdot)\) \(\chi_{1375}(118,\cdot)\) \(\chi_{1375}(332,\cdot)\) \(\chi_{1375}(382,\cdot)\) \(\chi_{1375}(468,\cdot)\) \(\chi_{1375}(1107,\cdot)\) \(\chi_{1375}(1168,\cdot)\) \(\chi_{1375}(1282,\cdot)\)

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

Related number fields

Field of values: \(\Q(\zeta_{20})\)
Fixed field: Number field defined by a degree 20 polynomial

Values on generators

\((1002,376)\) → \((e\left(\frac{3}{20}\right),e\left(\frac{7}{10}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(3\)\(4\)\(6\)\(7\)\(8\)\(9\)\(12\)\(13\)\(14\)
\( \chi_{ 1375 }(18, a) \) \(1\)\(1\)\(e\left(\frac{17}{20}\right)\)\(e\left(\frac{13}{20}\right)\)\(e\left(\frac{7}{10}\right)\)\(-1\)\(e\left(\frac{13}{20}\right)\)\(e\left(\frac{11}{20}\right)\)\(e\left(\frac{3}{10}\right)\)\(e\left(\frac{7}{20}\right)\)\(e\left(\frac{11}{20}\right)\)\(-1\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1375 }(18,a) \;\) at \(\;a = \) e.g. 2