from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(648, base_ring=CyclotomicField(54))
M = H._module
chi = DirichletCharacter(H, M([0,0,28]))
pari: [g,chi] = znchar(Mod(241,648))
Basic properties
| Modulus: | \(648\) | |
| Conductor: | \(81\) | sage: chi.conductor()
pari: znconreyconductor(g,chi)
|
| Order: | \(27\) | sage: chi.multiplicative_order()
pari: charorder(g,chi)
|
| Real: | no | |
| Primitive: | no, induced from \(\chi_{81}(79,\cdot)\) | sage: chi.is_primitive()
pari: #znconreyconductor(g,chi)==1
|
| Minimal: | yes | |
| Parity: | even | sage: chi.is_odd()
pari: zncharisodd(g,chi)
|
Galois orbit 648.y
\(\chi_{648}(25,\cdot)\) \(\chi_{648}(49,\cdot)\) \(\chi_{648}(97,\cdot)\) \(\chi_{648}(121,\cdot)\) \(\chi_{648}(169,\cdot)\) \(\chi_{648}(193,\cdot)\) \(\chi_{648}(241,\cdot)\) \(\chi_{648}(265,\cdot)\) \(\chi_{648}(313,\cdot)\) \(\chi_{648}(337,\cdot)\) \(\chi_{648}(385,\cdot)\) \(\chi_{648}(409,\cdot)\) \(\chi_{648}(457,\cdot)\) \(\chi_{648}(481,\cdot)\) \(\chi_{648}(529,\cdot)\) \(\chi_{648}(553,\cdot)\) \(\chi_{648}(601,\cdot)\) \(\chi_{648}(625,\cdot)\)
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: | \(\Q(\zeta_{27})\) |
| Fixed field: | Number field defined by a degree 27 polynomial |
Values on generators
\((487,325,569)\) → \((1,1,e\left(\frac{14}{27}\right))\)
First values
| \(a\) | \(-1\) | \(1\) | \(5\) | \(7\) | \(11\) | \(13\) | \(17\) | \(19\) | \(23\) | \(25\) | \(29\) | \(31\) |
| \( \chi_{ 648 }(241, a) \) | \(1\) | \(1\) | \(e\left(\frac{25}{27}\right)\) | \(e\left(\frac{8}{27}\right)\) | \(e\left(\frac{20}{27}\right)\) | \(e\left(\frac{4}{27}\right)\) | \(e\left(\frac{1}{9}\right)\) | \(e\left(\frac{8}{9}\right)\) | \(e\left(\frac{19}{27}\right)\) | \(e\left(\frac{23}{27}\right)\) | \(e\left(\frac{5}{27}\right)\) | \(e\left(\frac{10}{27}\right)\) |
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)