=================================================================================
Convolution, or called folding, of two functions, f(r) and h(r), is defined as,
--------------------------- [2738a]
In addition, convolution theorem is a useful theorem connecting the convolution in direct space to multiplication in Fourier transform space. The convolution theorem is given by,
--------------------------- [2738b]
Multiplication theorem connects the multiplication in direct space to the convolution in Fourier transform space,
--------------------------- [2738c]
|