Harmonic analysis

Convolution theorem

Theorem that under suitable conditions the Fourier transform of a convolution of two signals is the pointwise product of their Fourier transforms

Fast Fourier transform

Discrete Fourier transform algorithm

Fourier analysis

Branch of mathematics

Fourier series

Decomposition of periodic functions into sums of simpler sinusoidal forms

Fourier transform

Mathematical transform that expresses a function of time as a function of frequency

Harmonic analysis

Study of superpositions in mathematics

Harmonic conjugate

Concept in mathematics

Harmonic function

Functions in mathematics

Laplace transform

Integral transform useful in probability theory, physics, and engineering

Potential theory

Branch of mathematic studying harmonic functions