Poisson formula


Poisson formula

[pwä′sōn‚fȯr·myə·lə] (mathematics) If the infinite series of functions ƒ(2π k + t), k ranging from -∞ to ∞, converges uniformly to a function of bounded variation, then the infinite series with term ƒ(2π k), k ranging from -∞ to ∞, is identical to the series with term the integral of ƒ(x) e -iks dx, k ranging from -∞ to ∞.