Properties

Label 1960.137
Modulus $1960$
Conductor $245$
Order $84$
Real no
Primitive no
Minimal yes
Parity odd

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1960, base_ring=CyclotomicField(84))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,0,21,68]))
 
pari: [g,chi] = znchar(Mod(137,1960))
 

Basic properties

Modulus: \(1960\)
Conductor: \(245\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(84\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{245}(137,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: odd
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 1960.dr

\(\chi_{1960}(137,\cdot)\) \(\chi_{1960}(193,\cdot)\) \(\chi_{1960}(233,\cdot)\) \(\chi_{1960}(417,\cdot)\) \(\chi_{1960}(457,\cdot)\) \(\chi_{1960}(473,\cdot)\) \(\chi_{1960}(513,\cdot)\) \(\chi_{1960}(697,\cdot)\) \(\chi_{1960}(737,\cdot)\) \(\chi_{1960}(793,\cdot)\) \(\chi_{1960}(977,\cdot)\) \(\chi_{1960}(1017,\cdot)\) \(\chi_{1960}(1033,\cdot)\) \(\chi_{1960}(1073,\cdot)\) \(\chi_{1960}(1257,\cdot)\) \(\chi_{1960}(1297,\cdot)\) \(\chi_{1960}(1313,\cdot)\) \(\chi_{1960}(1577,\cdot)\) \(\chi_{1960}(1593,\cdot)\) \(\chi_{1960}(1633,\cdot)\) \(\chi_{1960}(1817,\cdot)\) \(\chi_{1960}(1857,\cdot)\) \(\chi_{1960}(1873,\cdot)\) \(\chi_{1960}(1913,\cdot)\)

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: $\Q(\zeta_{84})$
Fixed field: Number field defined by a degree 84 polynomial

Values on generators

\((1471,981,1177,1081)\) → \((1,1,i,e\left(\frac{17}{21}\right))\)

First values

\(a\) \(-1\)\(1\)\(3\)\(9\)\(11\)\(13\)\(17\)\(19\)\(23\)\(27\)\(29\)\(31\)
\( \chi_{ 1960 }(137, a) \) \(-1\)\(1\)\(e\left(\frac{47}{84}\right)\)\(e\left(\frac{5}{42}\right)\)\(e\left(\frac{8}{21}\right)\)\(e\left(\frac{13}{28}\right)\)\(e\left(\frac{41}{84}\right)\)\(e\left(\frac{5}{6}\right)\)\(e\left(\frac{43}{84}\right)\)\(e\left(\frac{19}{28}\right)\)\(e\left(\frac{1}{14}\right)\)\(e\left(\frac{2}{3}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1960 }(137,a) \;\) at \(\;a = \) e.g. 2