Fourier coefficients and growth of harmonic functions

We consider Harmonic Functions, H of several variables.We obtain necessary and click here sufficient conditions on its Fourier coefficients so that H is an entire harmonic (that is, has no finite singularities) function; the radius of harmonicity in terms of its Fourier coefficients in case H is not entire.Further, we obtain, in terms of its Fourier coefficients, the Order and Type luau thank you cards growth measures, both in case H is entire or non-entire.