Properties

Label 1728.61
Modulus $1728$
Conductor $1728$
Order $144$
Real no
Primitive yes
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1728, base_ring=CyclotomicField(144))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,27,128]))
 
pari: [g,chi] = znchar(Mod(61,1728))
 

Basic properties

Modulus: \(1728\)
Conductor: \(1728\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(144\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: yes
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 1728.ce

\(\chi_{1728}(13,\cdot)\) \(\chi_{1728}(61,\cdot)\) \(\chi_{1728}(85,\cdot)\) \(\chi_{1728}(133,\cdot)\) \(\chi_{1728}(157,\cdot)\) \(\chi_{1728}(205,\cdot)\) \(\chi_{1728}(229,\cdot)\) \(\chi_{1728}(277,\cdot)\) \(\chi_{1728}(301,\cdot)\) \(\chi_{1728}(349,\cdot)\) \(\chi_{1728}(373,\cdot)\) \(\chi_{1728}(421,\cdot)\) \(\chi_{1728}(445,\cdot)\) \(\chi_{1728}(493,\cdot)\) \(\chi_{1728}(517,\cdot)\) \(\chi_{1728}(565,\cdot)\) \(\chi_{1728}(589,\cdot)\) \(\chi_{1728}(637,\cdot)\) \(\chi_{1728}(661,\cdot)\) \(\chi_{1728}(709,\cdot)\) \(\chi_{1728}(733,\cdot)\) \(\chi_{1728}(781,\cdot)\) \(\chi_{1728}(805,\cdot)\) \(\chi_{1728}(853,\cdot)\) \(\chi_{1728}(877,\cdot)\) \(\chi_{1728}(925,\cdot)\) \(\chi_{1728}(949,\cdot)\) \(\chi_{1728}(997,\cdot)\) \(\chi_{1728}(1021,\cdot)\) \(\chi_{1728}(1069,\cdot)\) ...

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: $\Q(\zeta_{144})$
Fixed field: Number field defined by a degree 144 polynomial (not computed)

Values on generators

\((703,325,1217)\) → \((1,e\left(\frac{3}{16}\right),e\left(\frac{8}{9}\right))\)

First values

\(a\) \(-1\)\(1\)\(5\)\(7\)\(11\)\(13\)\(17\)\(19\)\(23\)\(25\)\(29\)\(31\)
\( \chi_{ 1728 }(61, a) \) \(1\)\(1\)\(e\left(\frac{91}{144}\right)\)\(e\left(\frac{7}{72}\right)\)\(e\left(\frac{71}{144}\right)\)\(e\left(\frac{133}{144}\right)\)\(e\left(\frac{7}{12}\right)\)\(e\left(\frac{47}{48}\right)\)\(e\left(\frac{29}{72}\right)\)\(e\left(\frac{19}{72}\right)\)\(e\left(\frac{137}{144}\right)\)\(e\left(\frac{5}{18}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1728 }(61,a) \;\) at \(\;a = \) e.g. 2