from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(147, base_ring=CyclotomicField(42))
M = H._module
chi = DirichletCharacter(H, M([21,41]))
pari: [g,chi] = znchar(Mod(131,147))
Basic properties
| Modulus: | \(147\) | |
| Conductor: | \(147\) | sage: chi.conductor()
pari: znconreyconductor(g,chi)
|
| Order: | \(42\) | 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 147.o
\(\chi_{147}(5,\cdot)\) \(\chi_{147}(17,\cdot)\) \(\chi_{147}(26,\cdot)\) \(\chi_{147}(38,\cdot)\) \(\chi_{147}(47,\cdot)\) \(\chi_{147}(59,\cdot)\) \(\chi_{147}(89,\cdot)\) \(\chi_{147}(101,\cdot)\) \(\chi_{147}(110,\cdot)\) \(\chi_{147}(122,\cdot)\) \(\chi_{147}(131,\cdot)\) \(\chi_{147}(143,\cdot)\)
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: | \(\Q(\zeta_{21})\) |
| Fixed field: | \(\Q(\zeta_{147})^+\) |
Values on generators
\((50,52)\) → \((-1,e\left(\frac{41}{42}\right))\)
First values
| \(a\) | \(-1\) | \(1\) | \(2\) | \(4\) | \(5\) | \(8\) | \(10\) | \(11\) | \(13\) | \(16\) | \(17\) | \(19\) |
| \( \chi_{ 147 }(131, a) \) | \(1\) | \(1\) | \(e\left(\frac{37}{42}\right)\) | \(e\left(\frac{16}{21}\right)\) | \(e\left(\frac{17}{21}\right)\) | \(e\left(\frac{9}{14}\right)\) | \(e\left(\frac{29}{42}\right)\) | \(e\left(\frac{23}{42}\right)\) | \(e\left(\frac{3}{14}\right)\) | \(e\left(\frac{11}{21}\right)\) | \(e\left(\frac{19}{21}\right)\) | \(e\left(\frac{1}{6}\right)\) |
sage: chi.jacobi_sum(n)
Gauss sum
sage: chi.gauss_sum(a)
pari: znchargauss(g,chi,a)
Jacobi sum
sage: chi.jacobi_sum(n)
Kloosterman sum
sage: chi.kloosterman_sum(a,b)