Properties

Label 775.13
Modulus $775$
Conductor $775$
Order $60$
Real no
Primitive yes
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(775, base_ring=CyclotomicField(60))
 
M = H._module
 
chi = DirichletCharacter(H, M([57,22]))
 
pari: [g,chi] = znchar(Mod(13,775))
 

Basic properties

Modulus: \(775\)
Conductor: \(775\)
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: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 775.cu

\(\chi_{775}(13,\cdot)\) \(\chi_{775}(17,\cdot)\) \(\chi_{775}(52,\cdot)\) \(\chi_{775}(137,\cdot)\) \(\chi_{775}(197,\cdot)\) \(\chi_{775}(198,\cdot)\) \(\chi_{775}(208,\cdot)\) \(\chi_{775}(228,\cdot)\) \(\chi_{775}(272,\cdot)\) \(\chi_{775}(303,\cdot)\) \(\chi_{775}(313,\cdot)\) \(\chi_{775}(358,\cdot)\) \(\chi_{775}(437,\cdot)\) \(\chi_{775}(477,\cdot)\) \(\chi_{775}(548,\cdot)\) \(\chi_{775}(642,\cdot)\)

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

\((652,251)\) → \((e\left(\frac{19}{20}\right),e\left(\frac{11}{30}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(3\)\(4\)\(6\)\(7\)\(8\)\(9\)\(11\)\(12\)\(13\)
\( \chi_{ 775 }(13, a) \) \(1\)\(1\)\(-i\)\(e\left(\frac{1}{60}\right)\)\(-1\)\(e\left(\frac{23}{30}\right)\)\(e\left(\frac{1}{60}\right)\)\(i\)\(e\left(\frac{1}{30}\right)\)\(e\left(\frac{19}{30}\right)\)\(e\left(\frac{31}{60}\right)\)\(e\left(\frac{1}{12}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 775 }(13,a) \;\) at \(\;a = \) e.g. 2

Gauss sum

sage: chi.gauss_sum(a)
 
pari: znchargauss(g,chi,a)
 
\( \tau_{ a }( \chi_{ 775 }(13,·) )\;\) at \(\;a = \) e.g. 2

Jacobi sum

sage: chi.jacobi_sum(n)
 
\( J(\chi_{ 775 }(13,·),\chi_{ 775 }(n,·)) \;\) for \( \; n = \) e.g. 1

Kloosterman sum

sage: chi.kloosterman_sum(a,b)
 
\(K(a,b,\chi_{ 775 }(13,·)) \;\) at \(\; a,b = \) e.g. 1,2