An Introduction to the Uncertainty Principle - Hardy's Theorem on Lie Groups (Hardcover, 2004 ed.)

In 1932 Norbert Wiener gave a series of lectures on Fourier analysis at the Univer sity of Cambridge. One result of Wiener's visit to Cambridge was his well-known text The Fourier Integral and Certain of its Applications; another was a paper by G. H. Hardy in the 1933 Journalofthe London Mathematical Society. As Hardy says in the introduction to this paper, This note originates from a remark of Prof. N. Wiener, to the effect that "a f and g [= j] cannot both be very small". ... The theo pair of transforms rems which follow give the most precise interpretation possible ofWiener's remark. Hardy's own statement of his results, lightly paraphrased, is as follows, in which f is an integrable function on the real line and f is its Fourier transform: x 2 m If f and j are both 0 (Ix1e- /2) for large x and some m, then each is a finite linear combination ofHermite functions. In particular, if f and j are x2 x 2 2 2 both O(e- / ), then f = j = Ae- / , where A is a constant; and if one x 2 2 is0(e- / ), then both are null.

General

Imprint:	Birkhauser Boston
Country of origin:	United States
Series:	Progress in Mathematics, 217
Release date:	October 2003
First published:	November 2003
Authors:	Sundaram Thangavelu
Dimensions:	235 x 155 x 12mm (L x W x T)
Format:	Hardcover
Pages:	174
Edition:	2004 ed.
ISBN-13:	978-0-8176-4330-0
Categories:	Books > Science & Mathematics > Mathematics > Calculus & mathematical analysis > Functional analysis
LSN:	0-8176-4330-3
Barcode:	9780817643300

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