Properties

Label 2020.979
Modulus $2020$
Conductor $2020$
Order $50$
Real no
Primitive yes
Minimal yes
Parity odd

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2020, base_ring=CyclotomicField(50))
 
M = H._module
 
chi = DirichletCharacter(H, M([25,25,17]))
 
pari: [g,chi] = znchar(Mod(979,2020))
 

Basic properties

Modulus: \(2020\)
Conductor: \(2020\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(50\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: yes
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: odd
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 2020.bt

\(\chi_{2020}(279,\cdot)\) \(\chi_{2020}(379,\cdot)\) \(\chi_{2020}(399,\cdot)\) \(\chi_{2020}(619,\cdot)\) \(\chi_{2020}(639,\cdot)\) \(\chi_{2020}(939,\cdot)\) \(\chi_{2020}(979,\cdot)\) \(\chi_{2020}(1019,\cdot)\) \(\chi_{2020}(1059,\cdot)\) \(\chi_{2020}(1259,\cdot)\) \(\chi_{2020}(1459,\cdot)\) \(\chi_{2020}(1499,\cdot)\) \(\chi_{2020}(1519,\cdot)\) \(\chi_{2020}(1579,\cdot)\) \(\chi_{2020}(1639,\cdot)\) \(\chi_{2020}(1659,\cdot)\) \(\chi_{2020}(1739,\cdot)\) \(\chi_{2020}(1799,\cdot)\) \(\chi_{2020}(1839,\cdot)\) \(\chi_{2020}(1939,\cdot)\)

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: \(\Q(\zeta_{25})\)
Fixed field: Number field defined by a degree 50 polynomial

Values on generators

\((1011,1617,1921)\) → \((-1,-1,e\left(\frac{17}{50}\right))\)

First values

\(a\) \(-1\)\(1\)\(3\)\(7\)\(9\)\(11\)\(13\)\(17\)\(19\)\(21\)\(23\)\(27\)
\( \chi_{ 2020 }(979, a) \) \(-1\)\(1\)\(e\left(\frac{23}{50}\right)\)\(e\left(\frac{3}{50}\right)\)\(e\left(\frac{23}{25}\right)\)\(e\left(\frac{23}{25}\right)\)\(e\left(\frac{47}{50}\right)\)\(e\left(\frac{7}{10}\right)\)\(e\left(\frac{7}{50}\right)\)\(e\left(\frac{13}{25}\right)\)\(e\left(\frac{6}{25}\right)\)\(e\left(\frac{19}{50}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 2020 }(979,a) \;\) at \(\;a = \) e.g. 2