from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(640, base_ring=CyclotomicField(32))
M = H._module
chi = DirichletCharacter(H, M([0,15,24]))
pari: [g,chi] = znchar(Mod(13,640))
Basic properties
| Modulus: | \(640\) | |
| Conductor: | \(640\) | sage: chi.conductor()
pari: znconreyconductor(g,chi)
|
| Order: | \(32\) | sage: chi.multiplicative_order()
pari: charorder(g,chi)
|
| Real: | no | |
| Primitive: | yes | sage: chi.is_primitive()
pari: #znconreyconductor(g,chi)==1
|
| Minimal: | yes | |
| Parity: | odd | sage: chi.is_odd()
pari: zncharisodd(g,chi)
|
Galois orbit 640.bk
\(\chi_{640}(13,\cdot)\) \(\chi_{640}(37,\cdot)\) \(\chi_{640}(93,\cdot)\) \(\chi_{640}(117,\cdot)\) \(\chi_{640}(173,\cdot)\) \(\chi_{640}(197,\cdot)\) \(\chi_{640}(253,\cdot)\) \(\chi_{640}(277,\cdot)\) \(\chi_{640}(333,\cdot)\) \(\chi_{640}(357,\cdot)\) \(\chi_{640}(413,\cdot)\) \(\chi_{640}(437,\cdot)\) \(\chi_{640}(493,\cdot)\) \(\chi_{640}(517,\cdot)\) \(\chi_{640}(573,\cdot)\) \(\chi_{640}(597,\cdot)\)
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: | \(\Q(\zeta_{32})\) |
| Fixed field: | 32.0.187072209578355573530071658587684226515959365500928000000000000000000000000.2 |
Values on generators
\((511,261,257)\) → \((1,e\left(\frac{15}{32}\right),-i)\)
First values
| \(a\) | \(-1\) | \(1\) | \(3\) | \(7\) | \(9\) | \(11\) | \(13\) | \(17\) | \(19\) | \(21\) | \(23\) | \(27\) |
| \( \chi_{ 640 }(13, a) \) | \(-1\) | \(1\) | \(e\left(\frac{21}{32}\right)\) | \(e\left(\frac{7}{16}\right)\) | \(e\left(\frac{5}{16}\right)\) | \(e\left(\frac{27}{32}\right)\) | \(e\left(\frac{9}{32}\right)\) | \(e\left(\frac{7}{8}\right)\) | \(e\left(\frac{9}{32}\right)\) | \(e\left(\frac{3}{32}\right)\) | \(e\left(\frac{13}{16}\right)\) | \(e\left(\frac{31}{32}\right)\) |
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)