Wavelet methods for pointwise regularity and local oscillations of functions
著者
書誌事項
Wavelet methods for pointwise regularity and local oscillations of functions
（Memoirs of the American Mathematical Society, no. 587）
American Mathematical Society, 1996
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注記
"September 1996, volume 123, number 587 (second of 4 numbers)" -- T.p
Includes bibliographical references (p. 106-108) and index
内容説明・目次
内容説明
Currently, new trends in mathematics are emerging from the fruitful interaction between signal processing, image processing, and classical analysis.
One example is given by "wavelets", which incorporate both the know-how of the Calderon-Zygmund school and the efficiency of some fast algorithms developed in signal processing (quadrature mirror filters and pyramidal algorithms.)
A second example is "multi-fractal analysis". The initial motivation was the study of fully developed turbulence and the introduction by Frisch and Parisi of the multi-fractal spectrum. Multi-fractal analysis provides a deeper insight into many classical functions in mathematics.
A third example-"chirps"-is studied in this book. Chirps are used in modern radar or sonar technology. Once given a precise mathematical definition, chirps constitute a powerful tool in classical analysis.
In this book, wavelet analysis is related to the 2-microlocal spaces discovered by J. M. Bony. The authors then prove that a wavelet based multi-fractal analysis leads to a remarkable improvement of Sobolev embedding theorem. In addition, they show that chirps were hidden in a celebrated Riemann series.
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