Properties

Label 2015.653
Modulus $2015$
Conductor $2015$
Order $60$
Real no
Primitive yes
Minimal yes
Parity odd

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2015, base_ring=CyclotomicField(60))
 
M = H._module
 
chi = DirichletCharacter(H, M([45,20,48]))
 
pari: [g,chi] = znchar(Mod(653,2015))
 

Basic properties

Modulus: \(2015\)
Conductor: \(2015\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(60\)
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 2015.go

\(\chi_{2015}(438,\cdot)\) \(\chi_{2015}(562,\cdot)\) \(\chi_{2015}(653,\cdot)\) \(\chi_{2015}(698,\cdot)\) \(\chi_{2015}(783,\cdot)\) \(\chi_{2015}(822,\cdot)\) \(\chi_{2015}(932,\cdot)\) \(\chi_{2015}(1062,\cdot)\) \(\chi_{2015}(1368,\cdot)\) \(\chi_{2015}(1628,\cdot)\) \(\chi_{2015}(1647,\cdot)\) \(\chi_{2015}(1738,\cdot)\) \(\chi_{2015}(1862,\cdot)\) \(\chi_{2015}(1868,\cdot)\) \(\chi_{2015}(1907,\cdot)\) \(\chi_{2015}(1992,\cdot)\)

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: \(\Q(\zeta_{60})\)
Fixed field: Number field defined by a degree 60 polynomial

Values on generators

\((807,1861,716)\) → \((-i,e\left(\frac{1}{3}\right),e\left(\frac{4}{5}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(3\)\(4\)\(6\)\(7\)\(8\)\(9\)\(11\)\(12\)\(14\)
\( \chi_{ 2015 }(653, a) \) \(-1\)\(1\)\(e\left(\frac{17}{60}\right)\)\(e\left(\frac{23}{60}\right)\)\(e\left(\frac{17}{30}\right)\)\(e\left(\frac{2}{3}\right)\)\(e\left(\frac{49}{60}\right)\)\(e\left(\frac{17}{20}\right)\)\(e\left(\frac{23}{30}\right)\)\(e\left(\frac{11}{15}\right)\)\(e\left(\frac{19}{20}\right)\)\(e\left(\frac{1}{10}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 2015 }(653,a) \;\) at \(\;a = \) e.g. 2