From AMS Glossary
Revision as of 19:34, 25 April 2012 by Perlwikibot
A theorem relating the product of two functions to the products of their Fourier series components.
If the functions are f(x) and F(x), and their Fourier series components have respective amplitudes an, bn and An, Bn, Parseval's theorem states that under certain general conditions
There is an analogous theorem for Fourier transforms.