Properties

Conductor 7
Order 2
Real Yes
Primitive No
Parity Odd
Orbit Label 77.d

Related objects

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Show commands for: SageMath / Pari/GP
sage: from dirichlet_conrey import DirichletGroup_conrey # requires nonstandard Sage package to be installed
sage: H = DirichletGroup_conrey(77)
sage: chi = H[34]
pari: [g,chi] = znchar(Mod(34,77))

Basic properties

sage: chi.conductor()
pari: znconreyconductor(g,chi)
Conductor = 7
sage: chi.multiplicative_order()
pari: charorder(g,chi)
Order = 2
Real = Yes
sage: chi.is_primitive()
pari: #znconreyconductor(g,chi)==1 \\ if not primitive returns [cond,factorization]
Primitive = No
sage: chi.is_odd()
pari: zncharisodd(g,chi)
Parity = Odd
Orbit label = 77.d
Orbit index = 4

Galois orbit

sage: chi.sage_character().galois_orbit()
pari: order = charorder(g,chi)
pari: [ charpow(g,chi, k % order) | k <-[1..order-1], gcd(k,order)==1 ]

\(\chi_{77}(34,\cdot)\)

Inducing primitive character

\(\chi_{7}(6,\cdot)\) = \(\displaystyle\left(\frac{-7}{\bullet}\right)\)

Values on generators

\((45,57)\) → \((-1,1)\)

Values

-112345689101213
\(-1\)\(1\)\(1\)\(-1\)\(1\)\(-1\)\(-1\)\(1\)\(1\)\(-1\)\(-1\)\(-1\)
value at  e.g. 2

Related number fields

Field of values \(\Q\)

Gauss sum

sage: chi.sage_character().gauss_sum(a)
pari: znchargauss(g,chi,a)
\( \tau_{ a }( \chi_{ 77 }(34,·) )\;\) at \(\;a = \) e.g. 2
\(\displaystyle \tau_{2}(\chi_{77}(34,\cdot)) = \sum_{r\in \Z/77\Z} \chi_{77}(34,r) e\left(\frac{2r}{77}\right) = -2.6457513111i \)

Jacobi sum

sage: chi.sage_character().jacobi_sum(n)
\( J(\chi_{ 77 }(34,·),\chi_{ 77 }(n,·)) \;\) for \( \; n = \) e.g. 1
\( \displaystyle J(\chi_{77}(34,\cdot),\chi_{77}(1,\cdot)) = \sum_{r\in \Z/77\Z} \chi_{77}(34,r) \chi_{77}(1,1-r) = -9 \)

Kloosterman sum

sage: chi.sage_character().kloosterman_sum(a,b)
\(K(a,b,\chi_{ 77 }(34,·)) \;\) at \(\; a,b = \) e.g. 1,2
\( \displaystyle K(1,2,\chi_{77}(34,·)) = \sum_{r \in \Z/77\Z} \chi_{77}(34,r) e\left(\frac{1 r + 2 r^{-1}}{77}\right) = -3.6412093772i \)