Properties

Label 8020.81
Modulus $8020$
Conductor $401$
Order $100$
Real no
Primitive no
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(8020, base_ring=CyclotomicField(100))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,0,1]))
 
pari: [g,chi] = znchar(Mod(81,8020))
 

Basic properties

Modulus: \(8020\)
Conductor: \(401\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(100\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{401}(81,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 8020.dc

\(\chi_{8020}(81,\cdot)\) \(\chi_{8020}(121,\cdot)\) \(\chi_{8020}(301,\cdot)\) \(\chi_{8020}(501,\cdot)\) \(\chi_{8020}(681,\cdot)\) \(\chi_{8020}(721,\cdot)\) \(\chi_{8020}(901,\cdot)\) \(\chi_{8020}(1221,\cdot)\) \(\chi_{8020}(1421,\cdot)\) \(\chi_{8020}(1661,\cdot)\) \(\chi_{8020}(1801,\cdot)\) \(\chi_{8020}(1941,\cdot)\) \(\chi_{8020}(2001,\cdot)\) \(\chi_{8020}(2121,\cdot)\) \(\chi_{8020}(2161,\cdot)\) \(\chi_{8020}(2901,\cdot)\) \(\chi_{8020}(3301,\cdot)\) \(\chi_{8020}(3321,\cdot)\) \(\chi_{8020}(3861,\cdot)\) \(\chi_{8020}(3941,\cdot)\) \(\chi_{8020}(3961,\cdot)\) \(\chi_{8020}(4301,\cdot)\) \(\chi_{8020}(4321,\cdot)\) \(\chi_{8020}(4501,\cdot)\) \(\chi_{8020}(4521,\cdot)\) \(\chi_{8020}(4861,\cdot)\) \(\chi_{8020}(4881,\cdot)\) \(\chi_{8020}(4961,\cdot)\) \(\chi_{8020}(5501,\cdot)\) \(\chi_{8020}(5521,\cdot)\) ...

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: $\Q(\zeta_{100})$
Fixed field: Number field defined by a degree 100 polynomial

Values on generators

\((4011,6417,7221)\) → \((1,1,e\left(\frac{1}{100}\right))\)

First values

\(a\) \(-1\)\(1\)\(3\)\(7\)\(9\)\(11\)\(13\)\(17\)\(19\)\(21\)\(23\)\(27\)
\( \chi_{ 8020 }(81, a) \) \(1\)\(1\)\(e\left(\frac{1}{100}\right)\)\(e\left(\frac{31}{50}\right)\)\(e\left(\frac{1}{50}\right)\)\(e\left(\frac{47}{50}\right)\)\(e\left(\frac{19}{100}\right)\)\(e\left(\frac{83}{100}\right)\)\(e\left(\frac{63}{100}\right)\)\(e\left(\frac{63}{100}\right)\)\(e\left(\frac{91}{100}\right)\)\(e\left(\frac{3}{100}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 8020 }(81,a) \;\) at \(\;a = \) e.g. 2