Properties

Label 2001.991
Modulus $2001$
Conductor $667$
Order $154$
Real no
Primitive no
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2001, base_ring=CyclotomicField(154))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,14,121]))
 
pari: [g,chi] = znchar(Mod(991,2001))
 

Basic properties

Modulus: \(2001\)
Conductor: \(667\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(154\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{667}(324,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 2001.bo

\(\chi_{2001}(4,\cdot)\) \(\chi_{2001}(13,\cdot)\) \(\chi_{2001}(64,\cdot)\) \(\chi_{2001}(100,\cdot)\) \(\chi_{2001}(121,\cdot)\) \(\chi_{2001}(151,\cdot)\) \(\chi_{2001}(154,\cdot)\) \(\chi_{2001}(187,\cdot)\) \(\chi_{2001}(196,\cdot)\) \(\chi_{2001}(238,\cdot)\) \(\chi_{2001}(265,\cdot)\) \(\chi_{2001}(325,\cdot)\) \(\chi_{2001}(328,\cdot)\) \(\chi_{2001}(361,\cdot)\) \(\chi_{2001}(370,\cdot)\) \(\chi_{2001}(439,\cdot)\) \(\chi_{2001}(469,\cdot)\) \(\chi_{2001}(499,\cdot)\) \(\chi_{2001}(535,\cdot)\) \(\chi_{2001}(556,\cdot)\) \(\chi_{2001}(673,\cdot)\) \(\chi_{2001}(676,\cdot)\) \(\chi_{2001}(763,\cdot)\) \(\chi_{2001}(817,\cdot)\) \(\chi_{2001}(883,\cdot)\) \(\chi_{2001}(892,\cdot)\) \(\chi_{2001}(961,\cdot)\) \(\chi_{2001}(970,\cdot)\) \(\chi_{2001}(979,\cdot)\) \(\chi_{2001}(991,\cdot)\) ...

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: $\Q(\zeta_{77})$
Fixed field: Number field defined by a degree 154 polynomial (not computed)

Values on generators

\((668,1132,553)\) → \((1,e\left(\frac{1}{11}\right),e\left(\frac{11}{14}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(4\)\(5\)\(7\)\(8\)\(10\)\(11\)\(13\)\(14\)\(16\)
\( \chi_{ 2001 }(991, a) \) \(1\)\(1\)\(e\left(\frac{149}{154}\right)\)\(e\left(\frac{72}{77}\right)\)\(e\left(\frac{29}{77}\right)\)\(e\left(\frac{12}{77}\right)\)\(e\left(\frac{139}{154}\right)\)\(e\left(\frac{53}{154}\right)\)\(e\left(\frac{71}{154}\right)\)\(e\left(\frac{32}{77}\right)\)\(e\left(\frac{19}{154}\right)\)\(e\left(\frac{67}{77}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 2001 }(991,a) \;\) at \(\;a = \) e.g. 2