localization principle


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localization principle

[‚lō·kə·lə′zā·shən ‚prin·sə·pəl]
(mathematics)
The principle that the convergence of the Fourier series of a function at a point depends only on the behavior of the function in some arbitrarily small neighborhood of that point.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.