In analysis, one considers integral operators which transform a functionf into a function Tf given by (Tf)(x) = ∫ K(x,y)f(y) dy. The function K is called the kernel of the operator T. This usage applies also to convolution operators such as the Dirichlet kernel.
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... is a municipality in central Sweden, in the county of Dalarna. The municipality covers an area of 1500.7 km². Of the total population of 26450, ...