from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(205, base_ring=CyclotomicField(40))
M = H._module
chi = DirichletCharacter(H, M([0,33]))
pari: [g,chi] = znchar(Mod(181,205))
Basic properties
Modulus: | \(205\) | |
Conductor: | \(41\) | sage: chi.conductor()
pari: znconreyconductor(g,chi)
|
Order: | \(40\) | sage: chi.multiplicative_order()
pari: charorder(g,chi)
|
Real: | no | |
Primitive: | no, induced from \(\chi_{41}(17,\cdot)\) | sage: chi.is_primitive()
pari: #znconreyconductor(g,chi)==1
|
Minimal: | yes | |
Parity: | odd | sage: chi.is_odd()
pari: zncharisodd(g,chi)
|
Galois orbit 205.z
\(\chi_{205}(6,\cdot)\) \(\chi_{205}(11,\cdot)\) \(\chi_{205}(26,\cdot)\) \(\chi_{205}(56,\cdot)\) \(\chi_{205}(71,\cdot)\) \(\chi_{205}(76,\cdot)\) \(\chi_{205}(101,\cdot)\) \(\chi_{205}(106,\cdot)\) \(\chi_{205}(111,\cdot)\) \(\chi_{205}(116,\cdot)\) \(\chi_{205}(136,\cdot)\) \(\chi_{205}(151,\cdot)\) \(\chi_{205}(171,\cdot)\) \(\chi_{205}(176,\cdot)\) \(\chi_{205}(181,\cdot)\) \(\chi_{205}(186,\cdot)\)
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: | \(\Q(\zeta_{40})\) |
Fixed field: | Number field defined by a degree 40 polynomial |
Values on generators
\((42,6)\) → \((1,e\left(\frac{33}{40}\right))\)
First values
\(a\) | \(-1\) | \(1\) | \(2\) | \(3\) | \(4\) | \(6\) | \(7\) | \(8\) | \(9\) | \(11\) | \(12\) | \(13\) |
\( \chi_{ 205 }(181, a) \) | \(-1\) | \(1\) | \(e\left(\frac{9}{20}\right)\) | \(e\left(\frac{3}{8}\right)\) | \(e\left(\frac{9}{10}\right)\) | \(e\left(\frac{33}{40}\right)\) | \(e\left(\frac{7}{40}\right)\) | \(e\left(\frac{7}{20}\right)\) | \(-i\) | \(e\left(\frac{19}{40}\right)\) | \(e\left(\frac{11}{40}\right)\) | \(e\left(\frac{23}{40}\right)\) |
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)