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sage:from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(1640, base_ring=CyclotomicField(20))
M = H._module
chi = DirichletCharacter(H, M([10,0,10,7]))
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pari:[g,chi] = znchar(Mod(759,1640))
\(\chi_{1640}(39,\cdot)\)
\(\chi_{1640}(159,\cdot)\)
\(\chi_{1640}(279,\cdot)\)
\(\chi_{1640}(759,\cdot)\)
\(\chi_{1640}(799,\cdot)\)
\(\chi_{1640}(1279,\cdot)\)
\(\chi_{1640}(1399,\cdot)\)
\(\chi_{1640}(1519,\cdot)\)
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sage:chi.galois_orbit()
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pari:order = charorder(g,chi)
[ charpow(g,chi, k % order) | k <-[1..order-1], gcd(k,order)==1 ]
\((1231,821,657,1441)\) → \((-1,1,-1,e\left(\frac{7}{20}\right))\)
| \(a\) |
\(-1\) | \(1\) | \(3\) | \(7\) | \(9\) | \(11\) | \(13\) | \(17\) | \(19\) | \(21\) | \(23\) | \(27\) |
| \( \chi_{ 1640 }(759, a) \) |
\(-1\) | \(1\) | \(i\) | \(e\left(\frac{13}{20}\right)\) | \(-1\) | \(e\left(\frac{11}{20}\right)\) | \(e\left(\frac{7}{20}\right)\) | \(e\left(\frac{1}{20}\right)\) | \(e\left(\frac{13}{20}\right)\) | \(e\left(\frac{9}{10}\right)\) | \(e\left(\frac{3}{5}\right)\) | \(-i\) |
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sage:chi.jacobi_sum(n)
