Properties

Label 8030.27
Modulus $8030$
Conductor $4015$
Order $20$
Real no
Primitive no
Minimal yes
Parity odd

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(8030, base_ring=CyclotomicField(20))
 
M = H._module
 
chi = DirichletCharacter(H, M([5,8,5]))
 
pari: [g,chi] = znchar(Mod(27,8030))
 

Basic properties

Modulus: \(8030\)
Conductor: \(4015\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(20\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{4015}(27,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: odd
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 8030.cv

\(\chi_{8030}(27,\cdot)\) \(\chi_{8030}(757,\cdot)\) \(\chi_{8030}(1433,\cdot)\) \(\chi_{8030}(3623,\cdot)\) \(\chi_{8030}(3677,\cdot)\) \(\chi_{8030}(5813,\cdot)\) \(\chi_{8030}(5867,\cdot)\) \(\chi_{8030}(6543,\cdot)\)

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

\((1607,2191,881)\) → \((i,e\left(\frac{2}{5}\right),i)\)

First values

\(a\) \(-1\)\(1\)\(3\)\(7\)\(9\)\(13\)\(17\)\(19\)\(21\)\(23\)\(27\)\(29\)
\( \chi_{ 8030 }(27, a) \) \(-1\)\(1\)\(e\left(\frac{9}{20}\right)\)\(e\left(\frac{3}{10}\right)\)\(e\left(\frac{9}{10}\right)\)\(e\left(\frac{9}{10}\right)\)\(e\left(\frac{1}{10}\right)\)\(e\left(\frac{1}{5}\right)\)\(-i\)\(i\)\(e\left(\frac{7}{20}\right)\)\(e\left(\frac{1}{20}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 8030 }(27,a) \;\) at \(\;a = \) e.g. 2