Properties

Label 4001.2696
Modulus $4001$
Conductor $4001$
Order $20$
Real no
Primitive yes
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(4001, base_ring=CyclotomicField(20))
 
M = H._module
 
chi = DirichletCharacter(H, M([7]))
 
pari: [g,chi] = znchar(Mod(2696,4001))
 

Basic properties

Modulus: \(4001\)
Conductor: \(4001\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(20\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: yes
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 4001.h

\(\chi_{4001}(152,\cdot)\) \(\chi_{4001}(816,\cdot)\) \(\chi_{4001}(1070,\cdot)\) \(\chi_{4001}(1305,\cdot)\) \(\chi_{4001}(2696,\cdot)\) \(\chi_{4001}(2931,\cdot)\) \(\chi_{4001}(3185,\cdot)\) \(\chi_{4001}(3849,\cdot)\)

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

\(3\) → \(e\left(\frac{7}{20}\right)\)

First values

\(a\) \(-1\)\(1\)\(2\)\(3\)\(4\)\(5\)\(6\)\(7\)\(8\)\(9\)\(10\)\(11\)
\( \chi_{ 4001 }(2696, a) \) \(1\)\(1\)\(e\left(\frac{1}{5}\right)\)\(e\left(\frac{7}{20}\right)\)\(e\left(\frac{2}{5}\right)\)\(1\)\(e\left(\frac{11}{20}\right)\)\(e\left(\frac{4}{5}\right)\)\(e\left(\frac{3}{5}\right)\)\(e\left(\frac{7}{10}\right)\)\(e\left(\frac{1}{5}\right)\)\(-i\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 4001 }(2696,a) \;\) at \(\;a = \) e.g. 2