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The fast Gauss transform with complex parameters

Authors
Publisher
Elsevier
Publication Date
Keywords
  • Fast Algorithms
  • Chirped Gaussian
  • Gauss Transform
  • Unequally Spaced Fourier Transforms
  • Mathematics And Statistics
Disciplines
  • Computer Science

Abstract

We construct a fast method, O(N log N), for the computation of discrete Gauss transforms with complex parameters, capable of dealing with unequally spaced grid points. The method is based on Fourier techniques, and in particular it makes use of a modified unequally spaced fast Fourier transform algorithm, in combination with previously suggested divide and conquer strategies for ordinary fast Gauss transform methods.

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