In the mathematical field of functional analysis, a Gelfand–Shilov space ${\displaystyle S_{\alpha }^{\beta }}$ is a space of test functions for the theory of generalized functions, introduced by Gelfand and Shilov (1968, Chapter IV).

• Chung, Jaeyoung; Chung, Soon-Yeong; Kim, Dohan (1996), "Characterizations of the Gel'fand–Shilov spaces via Fourier transforms", Proceedings of the American Mathematical Society, 124 (7): 2101–2108, doi:10.1090/S0002-9939-96-03291-1, ISSN 0002-9939, MR 1322917
• Gelfand, I. M.; Shilov, G. E. (1968) [1958], Generalized functions. Vol. 2. Spaces of fundamental and generalized functions, vol. 2, Boston, MA: Academic Press, MR 0230128

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