Fourier-Stieltjes series

Fourier-Stieltjes series

[‚fu̇r·ē‚ā ′stēl·yes ‚sir·ēz] (mathematics) For a function ƒ(x) of bounded variation on the interval [0,2π], the series from n = 0 to infinity of cn exp (inx), where cn is 1/2π times the integral from x = 0 to x = 2π of exp (-inx) d ƒ(x).